[hamradio-commits] [freedv] 01/02: Import Upstream version 1.2.2

Maitland Bottoms bottoms at moszumanska.debian.org
Sun Sep 3 23:26:32 UTC 2017


This is an automated email from the git hooks/post-receive script.

bottoms pushed a commit to branch master
in repository freedv.

commit 0ed85a4ddaca84e77eab9a98da34f3ddb9f61944
Author: A. Maitland Bottoms <bottoms at debian.org>
Date:   Sun Sep 3 19:07:02 2017 -0400

    Import Upstream version 1.2.2
---
 CMakeLists.txt                       |  463 ++++
 COPYING                              |  502 +++++
 README.osx                           |  107 +
 README.txt                           |  233 ++
 RELEASE_NOTES.txt                    |    7 +
 USER_MANUAL.txt                      |  100 +
 cmake/BuildCodec2.cmake              |   26 +
 cmake/BuildHamlib.cmake              |   20 +
 cmake/BuildPortaudio.cmake           |   52 +
 cmake/BuildSamplerate.cmake          |   27 +
 cmake/BuildSndfile.cmake             |   26 +
 cmake/BuildSpeex.cmake               |   30 +
 cmake/BuildWxWidgets.cmake           |   43 +
 cmake/FindPortaudio.cmake            |  107 +
 cmake/GetDependencies.cmake.in       |   37 +
 cmake/MinGW.cmake                    |    8 +
 cmake/Toolchain-Ubuntu-mingw32.cmake |   25 +
 cmake/config.h.in                    |   19 +
 cmake/soxconfig.h.in                 |   16 +
 cmake/version.h.in                   |   11 +
 contrib/CMakeLists.txt               |   22 +
 contrib/LICENSE                      |  393 ++++
 contrib/freedv.desktop               |    8 +
 contrib/freedv.ico                   |  Bin 0 -> 364646 bytes
 contrib/freedv.rc                    |    1 +
 contrib/freedv128x128.png            |  Bin 0 -> 22063 bytes
 contrib/freedv256x256.png            |  Bin 0 -> 72148 bytes
 contrib/freedv48x48.png              |  Bin 0 -> 3787 bytes
 contrib/freedv64x64.png              |  Bin 0 -> 6289 bytes
 contrib/freedv_screenshot.png        |  Bin 0 -> 81690 bytes
 credits.txt                          |   13 +
 db/current                           |    1 +
 db/format                            |    2 +
 db/fs-type                           |    1 +
 db/fsfs.conf                         |   38 +
 db/min-unpacked-rev                  |    1 +
 db/rep-cache.db                      |  Bin 0 -> 4096 bytes
 db/revprops/0/0                      |    5 +
 db/revprops/0/1                      |   13 +
 db/revs/0/0                          |   11 +
 db/revs/0/1                          |   49 +
 db/txn-current                       |    1 +
 db/txn-current-lock                  |    0
 db/uuid                              |    1 +
 db/write-lock                        |    0
 debian/changelog                     |    5 +
 debian/compat                        |    1 +
 debian/control                       |   19 +
 debian/copyright                     |   38 +
 debian/docs                          |    3 +
 debian/format                        |    1 +
 debian/rules                         |   30 +
 script/spot.sh                       |   29 +
 src/CMakeLists.txt                   |   79 +
 src/Makefile.win32                   |   52 +
 src/afreedvplugin.c                  |  117 +
 src/comp.h                           |   39 +
 src/dlg_audiooptions.cpp             | 1264 +++++++++++
 src/dlg_audiooptions.h               |  176 ++
 src/dlg_filter.cpp                   |  785 +++++++
 src/dlg_filter.h                     |  166 ++
 src/dlg_options.cpp                  |  616 ++++++
 src/dlg_options.h                    |  137 ++
 src/dlg_plugin.cpp                   |  148 ++
 src/dlg_plugin.h                     |   65 +
 src/dlg_ptt.cpp                      |  570 +++++
 src/dlg_ptt.h                        |   95 +
 src/fdmdv2_defines.h                 |  106 +
 src/fdmdv2_main.cpp                  | 4042 ++++++++++++++++++++++++++++++++++
 src/fdmdv2_main.h                    |  681 ++++++
 src/fdmdv2_pa_wrapper.cpp            |  324 +++
 src/fdmdv2_pa_wrapper.h              |  115 +
 src/fdmdv2_plot.cpp                  |  283 +++
 src/fdmdv2_plot.h                    |  150 ++
 src/fdmdv2_plot_scalar.cpp           |  344 +++
 src/fdmdv2_plot_scalar.h             |   78 +
 src/fdmdv2_plot_scatter.cpp          |  289 +++
 src/fdmdv2_plot_scatter.h            |   65 +
 src/fdmdv2_plot_spectrum.cpp         |  267 +++
 src/fdmdv2_plot_spectrum.h           |   58 +
 src/fdmdv2_plot_waterfall.cpp        |  483 ++++
 src/fdmdv2_plot_waterfall.h          |   73 +
 src/freedv.icns                      |  Bin 0 -> 92136 bytes
 src/hamlib.cpp                       |  160 ++
 src/hamlib.h                         |   31 +
 src/info.plist                       |  104 +
 src/serialport.cpp                   |  234 ++
 src/serialport.h                     |   42 +
 src/sox/band.h                       |   47 +
 src/sox/biquad.c                     |  178 ++
 src/sox/biquad.h                     |   78 +
 src/sox/biquads.c                    |  400 ++++
 src/sox/effects.c                    |  544 +++++
 src/sox/effects.h                    |   22 +
 src/sox/effects_i.c                  |  379 ++++
 src/sox/formats_i.c                  |  487 ++++
 src/sox/libsox.c                     |  225 ++
 src/sox/sox.h                        | 2608 ++++++++++++++++++++++
 src/sox/sox_i.h                      |  417 ++++
 src/sox/soxomp.h                     |   38 +
 src/sox/util.h                       |  231 ++
 src/sox/xmalloc.c                    |   43 +
 src/sox/xmalloc.h                    |   34 +
 src/sox_biquad.c                     |  134 ++
 src/sox_biquad.h                     |   40 +
 src/topFrame.cpp                     |  595 +++++
 src/topFrame.h                       |  194 ++
 107 files changed, 21477 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..a9f7049
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,463 @@
+#
+# FreeDV - HF Digital Voice for Radio Amateurs
+#
+# CMake configuration contributed by Richard Shaw (KF5OIM)
+# Please report questions, comments, problems, or patches to the freetel
+# mailing list: https://lists.sourceforge.net/lists/listinfo/freetel-codec2
+#
+
+set(CMAKE_OSX_DEPLOYMENT_TARGET "10.7" CACHE STRING "Minimum OS X deployment version")
+
+cmake_minimum_required(VERSION 2.8)
+
+# Prevent in-source builds to protect automake/autoconf config.
+# If an in-source build is attempted, you will still need to clean up a few
+# files manually.
+set(CMAKE_DISABLE_SOURCE_CHANGES ON)
+set(CMAKE_DISABLE_IN_SOURCE_BUILD ON)
+if("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
+  message(FATAL_ERROR "In-source builds in ${CMAKE_BINARY_DIR} are not "   
+   "allowed, please remove ./CMakeCache.txt and ./CMakeFiles/, create a "
+   "separate build directory and run cmake from there.")
+endif("${CMAKE_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
+
+# Set local module path.
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
+
+project(FreeDV)
+
+#
+# Set FreeDV version and generate src/version.h
+#
+set(FREEDV_VERSION_MAJOR 1)
+set(FREEDV_VERSION_MINOR 2)
+set(FREEDV_VERSION_PATCH 2)
+set(FREEDV_VERSION ${FREEDV_VERSION_MAJOR}.${FREEDV_VERSION_MINOR})
+if(FREEDV_VERSION_PATCH)
+    set(FREEDV_VERSION ${FREEDV_VERSION}.${FREEDV_VERSION_PATCH})
+endif()
+set(FREEDV_VERSION_SUFFIX FALSE)
+if(FREEDV_VERSION_SUFFIX)
+    set(FREEDV_VERSION_STRING "${FREEDV_VERSION} ${FREEDV_VERSION_SUFFIX}")
+else()
+    set(FREEDV_VERSION_STRING "${FREEDV_VERSION}")
+endif()
+message(STATUS "FreeDV version: ${FREEDV_VERSION_STRING}")
+configure_file(cmake/version.h.in src/version.h @ONLY)
+
+# Set default build type
+if(NOT CMAKE_BUILD_TYPE)
+    set(CMAKE_BUILD_TYPE "Debug")
+    message(STATUS "Build type not specified, defaulting to ${CMAKE_BUILD_TYPE}")
+endif(NOT CMAKE_BUILD_TYPE)
+
+# Work around for not using a svn working copy.
+add_definitions(-D_NO_AUTOTOOLS_)
+find_program(SVN_PATH svn)
+if(SVN_PATH)
+    execute_process(COMMAND ${SVN_PATH} info --show-item revision
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+        RESULT_VARIABLE SVN_REVISION_RESULT
+        OUTPUT_VARIABLE SVN_CURRENT_REVISION
+        ERROR_QUIET
+    )
+else()
+    set(SVN_REVISION_RESULT 1)
+endif()
+
+if(SVN_REVISION_RESULT EQUAL 0)
+    string(STRIP ${SVN_CURRENT_REVISION} SVN_REVISION)
+    add_definitions(-DSVN_REVISION="${SVN_REVISION}")
+else()
+    add_definitions(-DSVN_REVISION="None")
+endif()
+
+
+# Set default build flags.
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+if(APPLE)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -stdlib=libc++ -std=c++11")
+endif(APPLE)
+
+#
+# Setup cmake options
+#
+set(CMAKE_VERBOSE_MAKEFILE TRUE CACHE BOOL "Verbose makefile.")
+set(USE_STATIC_DEPS FALSE CACHE BOOL 
+    "Download and build static libraries instead of system libraries.")
+set(USE_STATIC_PORTAUDIO FALSE CACHE BOOL 
+    "Download and build static portaudio instead of the system library.")
+set(USE_STATIC_SNDFILE FALSE CACHE BOOL
+    "Download and build static sndfile instead of the system library.")
+set(USE_STATIC_SAMPLERATE FALSE CACHE BOOL
+    "Download and build static samplerate instead of the system library.")
+set(USE_STATIC_CODEC2 TRUE CACHE BOOL
+    "Download and build static codec2 instead of the system library.")
+set(USE_STATIC_SPEEXDSP TRUE CACHE BOOL
+    "Download and build static speex instead of the system library.")
+set(BOOTSTRAP_WXWIDGETS FALSE CACHE BOOL
+    "Download and build static wxWidgets instead of the system library.")
+
+if(USE_STATIC_DEPS)
+    set(USE_STATIC_PORTAUDIO TRUE FORCE)
+    set(USE_STATIC_SNDFILE TRUE FORCE)
+    set(USE_STATIC_SAMPLERATE TRUE FORCE)
+    set(USE_STATIC_CODEC2 TRUE FORCE)
+endif(USE_STATIC_DEPS)
+
+#
+# Pull in external wxWidgets target if performing static build.
+#
+if(BOOTSTRAP_WXWIDGETS)
+    message(STATUS "Adding wxWidgets build target...")
+    include(cmake/BuildWxWidgets.cmake)
+endif(BOOTSTRAP_WXWIDGETS)
+
+#
+# Perform bootstrap build of wxWidgets
+#
+if(BOOTSTRAP_WXWIDGETS AND NOT EXISTS ${WXCONFIG})
+    message(STATUS "Will perform bootstrap build of wxWidgets.
+   After make step completes, re-run cmake and make again to perform FreeDV build.")
+#
+# Continue normal build if not bootstrapping wxWidgets or is already built.
+#
+else(BOOTSTRAP_WXWIDGETS AND NOT EXISTS ${WXCONFIG})
+
+
+#
+# Various hacks and work arounds for building under MinGW.
+#
+if(MINGW)
+    message(STATUS "System is MinGW.")
+    # Setup HOST variable.
+    include(cmake/MinGW.cmake)
+    # This sets up the exe icon for windows under mingw.
+    set(RES_FILES "")
+    set(RES_FILES "${CMAKE_SOURCE_DIR}/contrib/freedv.rc")
+    set(CMAKE_RC_COMPILER_INIT windres)
+    enable_language(RC)
+    set(CMAKE_RC_COMPILE_OBJECT
+        "<CMAKE_RC_COMPILER> <FLAGS> -O coff <DEFINES> -i <SOURCE> -o <OBJECT>")
+    include(InstallRequiredSystemLibraries)
+endif(MINGW)
+
+# Math library is automatic on MinGW
+if(UNIX)
+    set(CMAKE_REQUIRED_INCLUDES math.h)
+    set(CMAKE_REQUIRED_LIBRARIES m)
+endif(UNIX)
+
+# Find some standard headers and functions.
+include(CheckIncludeFiles)
+check_include_files("byteswap.h"   HAVE_BYTESWAP_H)
+check_include_files("limits.h"     HAVE_LIMITS_H)
+check_include_files("stddef.h"     HAVE_STDDEF_H)
+check_include_files("stdlib.h"     HAVE_STDLIB_H)
+check_include_files("string.h"     HAVE_STRING_H)
+check_include_files("strings.h"    HAVE_STRINGS_H)
+check_include_files("ltdl.h"       HAVE_LTDL_H)
+check_include_files("inttypes.h"   HAVE_INTTYPES_H)
+check_include_files("sys/stat.h"   HAVE_SYS_STAT_H)
+check_include_files("sys/types.h"  HAVE_SYS_TYPES_H)
+
+include(CheckTypeSize)
+check_type_size("int" SIZEOF_INT)
+
+include(CheckFunctionExists)
+check_function_exists(floor HAVE_FLOOR)
+check_function_exists(memset HAVE_MEMSET)
+check_function_exists(pow HAVE_POW)
+check_function_exists(sqrt HAVE_SQRT)
+check_function_exists(fseeko HAVE_FSEEKO)
+check_function_exists(fmemopen HAVE_FMEMOPEN)
+check_function_exists(strcasecmp HAVE_STRCASECMP)
+check_function_exists(vsnprintf HAVE_VSNPRINTF)
+
+include(CheckSymbolExists)
+check_symbol_exists("_fseeki64" "stdio.h" HAVE__FSEEKI64)
+
+# fdmdv2_main.h requires patching to find config.h as it current looks in the
+# source directory and the generated file goes in the binary directory.
+configure_file ("${PROJECT_SOURCE_DIR}/cmake/config.h.in"
+                "${PROJECT_BINARY_DIR}/config.h" )
+include_directories(${PROJECT_BINARY_DIR})
+add_definitions(-DHAVE_CONFIG_H)
+
+# Config file for bundled sox sources
+configure_file("${PROJECT_SOURCE_DIR}/cmake/soxconfig.h.in"
+               "${PROJECT_BINARY_DIR}/soxconfig.h")
+
+# Pthread Library
+find_package(Threads REQUIRED)
+message(STATUS "Threads library flags: ${CMAKE_THREAD_LIBS_INIT}")
+
+#
+# Find codec2
+#
+if(NOT USE_STATIC_CODEC2)
+    message(STATUS "Looking for codec2...")
+    # 'CONFIG' removed due to incompatibility with cmake version
+    # in Ubuntu 12.04 (Precise) -- Stuart Longland
+    find_package(codec2 QUIET)
+    if(codec2_FOUND)
+        get_target_property(CODEC2_LIBRARY codec2 LOCATION)
+        message(STATUS "  codec2 library: ${CODEC2_LIBRARY}")
+        message(STATUS "  codec2 headers: ${codec2_INCLUDE_DIRS}")
+    else()
+        # Try to find manually
+        find_path(CODEC2_INCLUDE_DIRS codec2.h
+                  PATH_SUFFIXES codec2)
+        find_library(CODEC2_LIBRARY NAMES codec2)
+        if(CODEC2_LIBRARY AND CODEC2_INCLUDE_DIRS)
+            message(STATUS "  codec2 library: ${CODEC2_LIBRARY}")
+            message(STATUS "  codec2 headers: ${CODEC2_INCLUDE_DIRS}")
+            list(APPEND FREEDV_LINK_LIBS ${CODEC2_LIBRARY})
+            include_directories(${CODEC2_INCLUDE_DIRS})
+        else()
+            message(FATAL_ERROR "codec2 library not found.
+Linux: 
+Codec2 may not be in your distribution so build yourself or use the cmake option to build statically into FreeDV.
+Windws:
+It's easiest to use the cmake option: USE_STATIC_CODEC2"
+        )
+        endif()
+    endif()
+else(NOT USE_STATIC_CODEC2)
+    message(STATUS "Will attempt static build of codec2.")
+    include(cmake/BuildCodec2.cmake)
+endif(NOT USE_STATIC_CODEC2)
+
+#
+# Find or build portaudio Library
+#
+if(NOT USE_STATIC_PORTAUDIO)
+    message(STATUS "Looking for portaudio...")
+    find_package(Portaudio REQUIRED)
+    if(PORTAUDIO_FOUND)
+        message(STATUS "  portaudio library: ${PORTAUDIO_LIBRARIES}")
+        message(STATUS "  portaudio headers: ${PORTAUDIO_INCLUDE_DIRS}")
+        list(APPEND FREEDV_LINK_LIBS ${PORTAUDIO_LIBRARIES})
+        include_directories(${PORTAUDIO_INCLUDE_DIRS})
+    else()
+        message(FATAL_ERROR "portaudio library not found.
+On Linux systems try installing:
+    portaudio-devel  (RPM based systems)
+    libportaudio-dev (DEB based systems)
+On Windows it's easiest to use the cmake option: USE_STATIC_PORTAUDIO"
+        )
+    endif()
+    if(NOT ${PORTAUDIO_VERSION} EQUAL 19)
+        message(WARNING "Portaudio versions other than 19 are known to have issues. You have been warned!")
+    endif()
+else(NOT USE_STATIC_PORTAUDIO)
+    message(STATUS "Will attempt static build of portaudio.")
+    include(cmake/BuildPortaudio.cmake)
+endif(NOT USE_STATIC_PORTAUDIO)
+
+#
+# Hamlib library
+#
+message(STATUS "Looking for hamlib...")
+find_path(HAMLIB_INCLUDE_DIR hamlib/rig.h)
+find_library(HAMLIB_LIBRARY hamlib PATH_SUFFIXES hamlib)
+message(STATUS "Hamlib library: ${HAMLIB_LIBRARY}")
+message(STATUS "Hamlib headers: ${HAMLIB_INCLUDE_DIR}")
+if(HAMLIB_LIBRARY AND HAMLIB_INCLUDE_DIR)
+    message(STATUS "Hamlib library found.")
+    include_directories(${HAMLIB_INCLUDE_DIR})
+    list(APPEND FREEDV_LINK_LIBS ${HAMLIB_LIBRARY})
+else(HAMLIB_LIBRARY AND HAMLIB_INCLUDE_DIR)
+    message(FATAL_ERROR "hamlib not found.
+On Linux systems try installing:
+    hamlib-devel  (RPM based systems)
+    libhamlib-dev (DEB based systems)"
+    )
+endif(HAMLIB_LIBRARY AND HAMLIB_INCLUDE_DIR)
+
+
+#
+# Samplerate Library
+#
+if(NOT USE_STATIC_SAMPLERATE)
+    message(STATUS "Looking for samplerate...")
+    find_library(LIBSAMPLERATE samplerate)
+    find_path(LIBSAMPLERATE_INCLUDE_DIR samplerate.h)
+    message(STATUS "  samplerate library: ${LIBSAMPLERATE}")
+    message(STATUS "  samplerate headers: ${LIBSAMPLERATE_INCLUDE_DIR}")
+    if(LIBSAMPLERATE AND LIBSAMPLERATE_INCLUDE_DIR)
+        list(APPEND FREEDV_LINK_LIBS ${LIBSAMPLERATE})
+        include_directories(${LIBSAMPLERATE_INCLUDE_DIR})
+    else(LIBSTAMPLERATE AND LIBSAMPLERATE_INCLUDE_DIR)
+        message(FATAL_ERROR "samplerate library not found.
+On Linux systems try installing:
+    samplerate-devel  (RPM based systems)
+    libsamplerate-dev (DEB based systems)
+On Windows it's easiest to use the cmake option: USE_STATIC_SAMPLERATE"
+        )
+    endif(LIBSAMPLERATE AND LIBSAMPLERATE_INCLUDE_DIR)
+else(NOT USE_STATIC_SAMPLERATE)
+    message(STATUS "Will attempt static build of samplerate.")
+    include(cmake/BuildSamplerate.cmake)
+endif(NOT USE_STATIC_SAMPLERATE)
+
+#    
+# sndfile Library
+#
+if(NOT USE_STATIC_SNDFILE)
+    message(STATUS "Looking for sndfile...")
+    find_library(LIBSNDFILE sndfile)
+    find_path(LIBSNDFILE_INCLUDE_DIR sndfile.h)
+    message(STATUS "  sndfile library: ${LIBSNDFILE}")
+    message(STATUS "  sndfile headers: ${LIBSNDFILE_INCLUDE_DIR}")
+    if(LIBSNDFILE AND LIBSNDFILE_INCLUDE_DIR)
+        list(APPEND FREEDV_LINK_LIBS ${LIBSNDFILE})
+    else(LIBSNDFILE AND LIBSNDFILE_INCLUDE_DIR)
+        message(FATAL_ERROR "sndfile library not found.
+On Linux systems try installing:
+    libsndfile-devel (RPM based systems)
+    libsndfile-dev   (DEB based systems)
+On Windows it's easiest to use the cmake option: USE_STATIC_SNDFILE"
+        )
+    endif(LIBSNDFILE AND LIBSNDFILE_INCLUDE_DIR)
+else(NOT USE_STATIC_SNDFILE)
+    message(STATUS "Will attempt static build of sndfile.")
+    include(cmake/BuildSndfile.cmake)
+endif(NOT USE_STATIC_SNDFILE)
+
+#
+# Find wxWidgets
+#
+if(NOT BOOTSTRAP_WXWIDGETS)
+    set(WXCONFIG "" CACHE FILEPATH "Location of wx-config binary.")
+    set(WXRC "" CACHE FILEPATH "Location of wxrc binary.")
+endif(NOT BOOTSTRAP_WXWIDGETS)
+#if(BOOTSTRAP_WXWIDGETS)
+#    set(WXCONFIG "${CMAKE_BINARY_DIR}/external/dist/bin/wx-config")
+#    set(WXRC "${CMAKE_BINARY_DIR}/external/dist/bin/wxrc")
+#    list(APPEND FREEDV_STATIC_DEPS wxWidgets)
+#endif(BOOTSTRAP_WXWIDGETS)
+message(STATUS "Looking for wxWidgets...")
+if(WXCONFIG)
+    message(STATUS "wx-config: ${WXCONFIG}")
+    set(wxWidgets_CONFIG_EXECUTABLE ${WXCONFIG})
+endif(WXCONFIG)
+if(WXRC)
+    message(STATUS "wxrc: ${WXRC}")
+    set(wxWidgets_wxrc_EXECUTABLE ${WXRC})
+endif(WXRC)
+set(WX_VERSION_MIN 3.0.0)
+find_package(wxWidgets REQUIRED core base aui html net adv)
+execute_process(COMMAND sh "${wxWidgets_CONFIG_EXECUTABLE}" --version
+    OUTPUT_VARIABLE WX_VERSION)
+string(STRIP ${WX_VERSION} WX_VERSION)
+if(WX_VERSION VERSION_EQUAL ${WX_VERSION_MIN}
+    OR WX_VERSION VERSION_GREATER ${WX_VERSION_MIN})
+   message(STATUS "wxWidgets version: ${WX_VERSION}")
+else()
+    message(FATAL_ERROR "wxWidgets must be installed on your system.
+Please check that wx-config is in path, the directory
+where wxWidgets libraries are installed (returned by
+'wx-config --libs' or 'wx-config --static --libs' command)
+is in LD_LIBRARY_PATH or equivalent variable and
+wxWidgets version is ${WX_VERSION_MIN} or above.")
+endif()
+if(wxWidgets_FOUND)
+    include("${wxWidgets_USE_FILE}")
+    list(APPEND FREEDV_LINK_LIBS ${wxWidgets_LIBRARIES})
+endif(wxWidgets_FOUND)
+
+#
+# Find speex library
+#
+if(NOT USE_STATIC_SPEEXDSP)
+    message(STATUS "Looking for Speex DSP library.")
+    find_path(SPEEXDSP_INCLUDE_DIR NAMES speex/speex.h speex/speexdsp_types.h)
+    find_library(SPEEXDSP_LIBRARY speexdsp)
+    message(STATUS "  Speex DSP headers: ${SPEEXDSP_INCLUDE_DIR}")
+    message(STATUS "  Speex DSP library: ${SPEEXDSP_LIBRARY}")
+    if(SPEEXDSP_INCLUDE_DIR AND SPEEXDSP_LIBRARY)
+        include_directories(${SPEEXDSP_INCLUDE_DIR})
+        list(APPEND FREEDV_LINK_LIBS ${SPEEXDSP_LIBRARY})
+    else(SPEEXDSP_INCLUDE_DIR AND SPEEXDSP_LIBRARY)
+        message(FATAL_ERROR "Speex DSP library not found!")
+    endif(SPEEXDSP_INCLUDE_DIR AND SPEEXDSP_LIBRARY)
+else()
+    message(STATUS "Will attempt static build of speex.")
+    include(cmake/BuildSpeex.cmake)
+endif()
+
+#
+# Find libdl for dlopen/dlclose
+#
+if(UNIX)
+    message(STATUS "Looking for dl library.")
+    find_library(DL_LIBRARY dl)
+    if(DL_LIBRARY)
+        message(STATUS "  dl library: ${DL_LIBRARY}")
+        list(APPEND FREEDV_LINK_LIBS ${DL_LIBRARY})
+    else()
+        message(FATAL_ERROR "dl library not found.
+On Linux systems try installing:
+    glibc-devel  (RPM based systems)
+    glibc-dev (DEB based systems)"
+        )
+    endif()
+endif(UNIX)
+
+    
+#Freedv 
+add_subdirectory(src)
+
+# Icons and desktop file
+add_subdirectory(contrib)
+
+message(STATUS "Build type will be: ${CMAKE_BUILD_TYPE}")
+
+#
+# Cpack NSIS configuration for Windows.
+#
+if(WIN32)
+    # Detect if we're doing a 32-bit or 64-bit windows build.
+    if(${CMAKE_SIZEOF_VOID_P} EQUAL 8)
+        set(CMAKE_CL_64 TRUE)
+        set(CPACK_NSIS_INSTALL_ROOT "$PROGRAMFILES64")
+    endif()
+    if(NOT ${CMAKE_BUILD_TYPE} STREQUAL "Debug")
+        set(CPACK_STRIP_FILES TRUE)
+    endif()
+    configure_file(cmake/GetDependencies.cmake.in cmake/GetDependencies.cmake
+        @ONLY
+    )
+    install(SCRIPT ${CMAKE_BINARY_DIR}/cmake/GetDependencies.cmake)
+    set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "HF Digital Voice for Radio Amateurs")
+    set(CPACK_PACKAGE_VENDOR "CMake")
+    #set(CPACK_PACKAGE_DESCRIPTION_FILE "${CMAKE_CURRENT_SOURCE_DIR}/README")
+    set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/COPYING")
+    set(CPACK_PACKAGE_VERSION_MAJOR ${FREEDV_VERSION_MAJOR})
+    set(CPACK_PACKAGE_VERSION_MINOR ${FREEDV_VERSION_MINOR})
+    # CPack expects a patch level version so set it here and override if we
+    # are actually setting one.
+    set(CPACK_PACKAGE_VERSION_PATCH 0)
+    if(FREEDV_VERSION_PATCH)
+        set(CPACK_PACKAGE_VERSION_PATCH ${FREEDV_VERSION_PATCH})
+    endif()
+    if(FREEDV_VERSION_SUFFIX)
+        set(CPACK_PACKAGE_VERSION_PATCH "${CPACK_PACKAGE_VERSION_PATCH}-${FREEDV_VERSION_SUFFIX}")
+    endif()
+    # There is a bug in NSI that does not handle full unix paths properly. Make
+    # sure there is at least one set of four (4) backlasshes.
+    #set(CPACK_PACKAGE_ICON "${CMake_SOURCE_DIR}/Utilities/Release\\\\InstallIcon.bmp")
+    set(CPACK_NSIS_INSTALLED_ICON_NAME "bin\\\\freedv.exe")
+    set(CPACK_NSIS_DISPLAY_NAME "${CPACK_PACKAGE_INSTALL_DIRECTORY}")
+    set(CPACK_NSIS_PACKAGE_NAME "FreeDV")
+    set(CPACK_PACKAGE_EXECUTABLES freedv;FreeDV)
+    set(CPACK_NSIS_URL_INFO_ABOUT "http://freedv.org")
+    set(CPACK_NSIS_MODIFY_PATH OFF)
+    set(CPACK_NSIS_MENU_LINKS
+        "http://freedv.org" "FreeDV Homepage")
+    include(CPack)
+endif(WIN32)
+
+endif(BOOTSTRAP_WXWIDGETS AND NOT EXISTS ${WXCONFIG})
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..cfd4e99
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,502 @@
+                  GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 2.1, February 1999
+
+ Copyright (C) 1991, 1999 Free Software Foundation, Inc.
+ 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+[This is the first released version of the Lesser GPL.  It also counts
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+ the version number 2.1.]
+
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+  The licenses for most software are designed to take away your
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+
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+That's all there is to it!
diff --git a/README.osx b/README.osx
new file mode 100644
index 0000000..c71544f
--- /dev/null
+++ b/README.osx
@@ -0,0 +1,107 @@
+Building under OSX is similar to building under linux, but there are some additional steps that need to be performed to produce a working app-bundle.
+
+For the following instructions, I'm assuming you will be placing everything in:
+/Users/<yourusername>/Dev/
+
+1/ DEPENDENCIES
+Using Macports, most of the appropriate dependencies can be installed by:
+
+$ sudo port install subversion git libtool libsamplerate sox portaudio dylibbundler cmake
+
+It should be fairly similar using HomeBrew, but you will need to replace all the /opt/ paths in the following instructions.
+
+1.1/ HAMLIB 
+First, we will need to build hamlib from source, as we need hamlib to be statically compiled (Macports won't do this..)
+
+$ git clone git://git.code.sf.net/p/hamlib/code hamlib-code
+$ cd hamlib-code
+
+You will now need to edit line 12 of autogen.sh, to change "libtoolize" to "glibtoolize"
+
+$ ./autogen.sh
+$ ./configure --disable-shared --prefix /Users/<your-username-here>/Dev/hamlib
+$ make
+$ make install
+
+You should now have an installation of hamlib in ~/Dev/hamlib
+
+Just in case you have hamlib installed via Macports, it may be a good idea to run
+$ sudo port deactivate hamlib
+
+1.2/ WXWIDGETS
+To be able to produce an appbundle, we need wxWidgets to be build statically. Again, Macports won't do this out of the box.
+
+Edit the wxWidgets-3.0 port file using:
+$ sudo port edit wxWidgets-3.0
+
+and add the following to the bottom of the file:
+
+variant static description { build a static version of the libraries with some other options... } {
+    configure.args-append       --enable-std_iostreams
+    configure.args-append       --disable-shared
+    configure.args-delete       --with-sdl
+    configure.args-delete       --with-opengl
+    set installtype release-static
+}
+
+Now you can build and install a static variant of wxWidgets with:
+$ sudo port install wxWidgets-3.0 +static
+
+Note: This will probably break anything else which is using wxWidgets. Once you have finished building FreeDV, you may
+want to go back to the dynamically compiled version using:
+$ sudo port install wxWidgets-3.0
+
+HomeBrew Users: Anyone know how to do the above?
+
+1.3/ CODEC2 LIBRARIES
+The FreeDV CMake procedure will automatically checkout and compile Codec2.
+If you want to build and install your own copy (i.e. for access to the command-line tools), you can do so:
+
+$ wget http://files.freedv.org/codec2/codec2-0.4.tar.gz
+or
+$ svn checkout https://svn.code.sf.net/p/freetel/code/codec2-dev/
+
+$ cd codec2-0.4
+or 
+cd codec2-dev
+$ mkdir build_osx && cd build_osx
+$ cmake ../ && make
+$ sudo make install
+
+3/ BUILDING FREEDV 
+Get the FreeDV source by either:
+
+Getting the current 'stable' release (1.0):
+$ wget http://files.freedv.org/freedv/freedv-1.0.tar.gz
+$ tar -xzf freedv-1.0.tar.gz
+
+or
+
+Checking the latest revision out from SVN:
+$ svn checkout https://svn.code.sf.net/p/freetel/code/freedv-dev/
+
+$ cd freedv-1.0
+or 
+$ cd freedv-dev
+
+$ mkdir build_osx && cd build_osx
+
+Assuming you are intending on building Codec2 as part of the build process, run:
+
+$ cmake -DWXCONFIG=/opt/local/Library/Frameworks/wxWidgets.framework/Versions/wxWidgets/3.0/lib/wx/config/osx_cocoa-unicode-static-3.0 -DCMAKE_EXE_LINKER_FLAGS="-L/opt/local/lib" -DHAMLIB_INCLUDE_DIR=../../hamlib/include -DHAMLIB_LIBRARY=../../hamlib/lib/libhamlib.a ../
+
+Then, build FreeDV:
+$ make
+
+The build process will create an appbundle (FreeDV.app) and a compressed disk image (FreeDV.dmg) in ./build_osx/src
+Move these to wherever you want, and run!
+
+Happy DVing!
+
+Acknowledgements:
+A big thank you to Mooneer Salem, K6AQ, for walking me through this process, and figuring out how to solve the wxWidgets and Hamlib issues.
+
+Please e-mail any corrections to either the digitalvoice google group list, or myself, at:
+vk5qi(at)rfhead.net
+Mark Jessop VK5QI
+
diff --git a/README.txt b/README.txt
new file mode 100644
index 0000000..26e731d
--- /dev/null
+++ b/README.txt
@@ -0,0 +1,233 @@
+==================================
+ FreeDV GUI README.txt
+==================================
+
+This document describes how to build the FreeDV GUI program for
+various operating systems.  See also:
+
+  http://freedv.org - introduction, documentation, downloads
+  RELEASE_NOTES.txt - changes made to each version
+  USER_MANUAL.txt   - FreeDV GUI Manual
+
+==================================
+ Building and installing on Linux
+==================================
+
+First the basics:
+
+  $ sudo apt-get install build-essential cmake subversion
+
+To install the required development libraries instead of building them
+statically:
+
+Debian/Ubuntu:
+
+  $ sudo apt-get install libwxgtk3.0-dev portaudio19-dev \
+    libhamlib-dev libsamplerate-dev libasound2-dev libao-dev libgsm1-dev \
+    libsndfile-dev
+
+Fedora:
+
+  $ sudo dnf install wxGTK3-devel portaudio-devel libsamplerate-devel \ 
+    libsndfile-devel speexdsp-devel hamlib-devel alsa-lib-devel libao-devel \
+    gsm-devel
+
+
+RHEL/CentOS and derivitves (requires Fedora EPEL repository)
+
+  $ sudo yum install wxGTK3-devel portaudio-devel libsamplerate-devel \ 
+    libsndfile-devel speexdsp-devel hamlib-devel alsa-lib-devel libao-devel \
+    gsm-devel
+
+
+Quickstart 1
+------------
+
+1/ Using a modern Linux, and the development library packages
+   installed above:
+
+  $ cd /path/to/freedv
+  $ mkdir build_linux
+  $ cd build_linux
+  $ cmake ../ 
+  $ make
+  $ ./src/freedv
+
+Quickstart 2
+------------
+
+Builds static versions of wxWidgets, portaudio, codec2-dev, which are commonly
+missing on older Linux systems.
+
+1/ Assumes static build of wxWidgets and the freedv-dev source is checked out into ~/freedv-dev:
+
+  $ cd ~/freedv-dev
+  $ mkdir build_linux
+  $ cd build_linux
+  $ cmake -DBOOTSTRAP_WXWIDGETS=TRUE ../
+  $ make
+
+2/ Then you can configure FreeDV using your local codec-dev, something like:
+
+  $ cmake -DCMAKE_BUILD_TYPE=Debug -DBOOTSTRAP_WXWIDGETS=TRUE -DCODEC2_INCLUDE_DIRS=/path/to/codec2-dev/src -DCODEC2_LIBRARY=/path/to/codec2-dev/build_linux/src/libcodec2.so -DUSE_STATIC_CODEC2=FALSE -DUSE_STATIC_PORTAUDIO=TRUE ../
+
+3/ OR build a local copy of codec2-dev:
+
+  $ cmake -DBOOTSTRAP_WXWIDGETS=TRUE -DUSE_STATIC_CODEC2=TRUE -DUSE_STATIC_PORTAUDIO=TRUE  ../
+  
+4/ Build and run FreeDV:
+
+   $ make
+   $ ./src/freedv
+
+=======================================================
+ Building for Windows on Ubuntu Linux (Cross compiling)
+=======================================================
+
+1/ Install the cross compiling toolchain:
+
+  $ sudo apt-get install mingw-w64
+
+2/ Patch cmake using: http://www.cmake.org/gitweb?p=stage/cmake.git;a=patch;h=33286235048495ceafb636d549d9a4e8891967ae
+
+3/ Checkout a fresh copy of codec2-dev and build for Windows, pointing to the generate_codebook built by a linux build of generate_codebook, using this cmake line
+
+  $ cmake .. -DCMAKE_TOOLCHAIN_FILE=/home/david/freedv-dev/cmake/Toolchain-Ubuntu-mingw32.cmake -DUNITTEST=FALSE -DGENERATE_CODEBOOK=/home/david/codec2-dev/build_linux/src/generate_codebook 
+
+4/ Build WxWidgets
+
+  $ cd /path/to/freedv-dev
+  $ mkdir build_windows
+  $ cd build_windows
+  $ cmake -DBOOTSTRAP_WXWIDGETS=TRUE .. -DCMAKE_TOOLCHAIN_FILE=cmake/Toolchain-Ubuntu-mingw32.cmake -DCMAKE_BUILD_TYPE=Debug
+  $ make
+
+5/ Download and install the Windows version of Hamlib:
+
+  $ wget http://internode.dl.sourceforge.net/project/hamlib/hamlib/1.2.15.3/hamlib-win32-1.2.15.3.zip
+  $ unzip hamlib-win32-1.2.15.3.zip
+
+6/ Build All the libraries and FreeDV:
+
+  $ cmake -DBOOTSTRAP_WXWIDGETS=TRUE -DCMAKE_TOOLCHAIN_FILE=cmake/Toolchain-Ubuntu-mingw32.cmake -DUSE_STATIC_PORTAUDIO=TRUE -DUSE_STATIC_SNDFILE=TRUE -DUSE_STATIC_SAMPLERATE=TRUE -DUSE_STATIC_CODEC2=FALSE -DCODEC2_INCLUDE_DIRS=/home/david/tmp/codec2-dev/src -DCODEC2_LIBRARY=/home/david/tmp/codec2-dev/build_windows/src/libcodec2.dll.a -DHAMLIB_INCLUDE_DIR=hamlib-win32-1.2.15.3/include -DHAMLIB_LIBRARY=hamlib-win32-1.2.15.3/lib/gcc/libhamlib.dll.a -DCMAKE_BUILD_TYPE=Debug ..
+  $ make
+
+7/ Test on Linux with "wine", this will tell you if any DLLs are missing:
+
+  $ wine src/freedv.exe
+
+8/ When moving to an actual Windows machine, I needed:
+
+  /usr/lib/gcc/i686-w64-mingw32/4.8/libstdc++-6.dll
+  /usr/lib/gcc/i686-w64-mingw32/4.8/libgcc_s_sjlj-1.dll
+  /usr/i686-w64-mingw32/lib/libwinpthread-1.dll
+
+  Wine seems to find these automagically, so I found them on my system by
+  looking at ~/.wine/system.reg for PATH:
+
+  [System\\CurrentControlSet\\Control\\Session Manager\\Environment] 1423800803
+  "PATH"=str(2):"C:\\windows\\system32;C:\\windows;C:\\windows\\system32\\wbem;Z:\\usr\\i686-w64-mingw32\\lib;Z:\\usr\\lib\\gcc\\i686-w64-mingw32\\4.8"
+
+
+====================================
+ Building and installing on Windows
+====================================
+
+The windows build is similar to linux and follows the same basic workflow,
+however, while codec2 and FreeDV (freedv) build well on windows, some of the
+dependencies do not. For that reson current windows releases are cross-compiled
+from linux.
+
+Only MinGW is supported. While it is likely possible to perform a pure MinGW
+build, installing MSYS2 will make your life easier.
+
+CMake may not automatically detect that you're in the MSYS environment. If this
+occurs you need to pass cmake the proper generator:
+
+cmake -G"MSYS Makefiles" [other options] </path/to/source>
+
+===============================
+ Bootstrapping wxWidgets build
+===============================
+
+If wxWidgets (>= 3.0) is not available then one option is to have CMake boot-
+strap the build for FreeDV.
+
+This is required because the tool wx-config is used to get the correct compiler
+and linker flags of the wxWidgets components needed by FreeDV. Since this is
+normally done at configure time, not during "make", it is not possible for CMake
+or have this information prior to building wxWidgets.
+
+In order to work around this issue you can "bootstrap" the wxWidgets build using
+the CMake option, "BOOTSTRAP_WXWIDGETS". wxWidgets will be built using static
+libraries.
+
+NOTE: This forces "USE_STATIC_WXWIDGETS" to be true internally regarless of the
+value set manually.
+
+(from any directory, but empty directory outside of the source is prefered.)
+$ cmake -DBOOTSTRAP_WXWIDGETS=TRUE /path/to/freedv
+$ make
+(wxWidgets is downloaded and built)
+$ cmake .
+(wxWidgets build should be detected)
+$ make
+(if all goes well, as root)
+$ make install
+
+====================================
+ Building and installing on OSX
+====================================
+
+Pls see README.osx
+
+====================================
+ Building and installing on FreeBSD
+====================================
+
+As per "Quickstart 2" above but change build_linux to build_freebsd
+
+=======
+Editing
+=======
+
+Please make sure your text editor does not insert tabs, and
+used indents of 4 spaces.  The following .emacs code was used to
+configure emacs:
+
+(setq-default indent-tabs-mode nil)
+
+(add-hook 'c-mode-common-hook
+          (function (lambda ()
+                      (setq c-basic-offset 4)
+                      )))
+
+FreeDV GUI TODO List
+--------------------
+
+[ ] Ubuntu packaging
+[ ] default sound card in/out setting for rx out of the box
+[ ] When application close on windows while "Start" down sometimes crashes
+    + Also on Linux it reports an unterminated thread when exiting
+[ ] Tool-Audio Config Dialog sound device names truncated on Windows
+[ ] Serialport::closeport() on Linux takes about 1 second 
+    + delays 'Stop' on main window test on Tools-PTT Test
+[ ] Voice keyer file name at bottom on main screen truncated
+    + need a bigger field
+[ ] Start/Stop file rec/playback, work out a better UI, 
+    maybe buttons on front page
+[ ] feature for evaluating yr own sound quality
+    + trap bad mic response/levels
+    + zero in on different sound quality from different users
+[ ] feeding audio over UDP say from from gqrx
+    + could also be used to netcat stored files
+[ ] refactoring
+    [ ] fdmdv2_main.cpp is way too long
+    [ ] rename fdmdv2*.cpp -> freedv*.cpp
+    [ ] dlg_ptt uses ComPortsDlg name internally, rename PttDlg or similar
+[ ] Add RSID
+    + use case, when would it be used?
+[ ] clean up dialogs
+    + were based on auto generation code
+    + must be an easier/clearer way to write them
+
diff --git a/RELEASE_NOTES.txt b/RELEASE_NOTES.txt
new file mode 100644
index 0000000..79eaeca
--- /dev/null
+++ b/RELEASE_NOTES.txt
@@ -0,0 +1,7 @@
+V1.2.2 July 2017
+----------------
+
+1/ Improvements to Hamlib support, error message reporting, serial rate box.
+
+2/ Disabled unused UDP comms/egexp processing to clean up Options dialog.
+
diff --git a/USER_MANUAL.txt b/USER_MANUAL.txt
new file mode 100644
index 0000000..2cc4494
--- /dev/null
+++ b/USER_MANUAL.txt
@@ -0,0 +1,100 @@
+======================
+FREEDV GUI USER MANUAL
+======================
+
+Introduction
+------------
+
+This document describes additional features in the latest FreeDV
+releases that haven't been documented in other sources.  See also
+freedv.org
+
+PTT Configuration
+-----------------
+
+Tools-PTT Dialog
+
+Hamlib comes with a default serial rate for each radio.  If your radio
+has a different serial rate change the Serial Rate drop down box to
+match your radio.
+
+When "Test" is pressed, the "Serial Params" field is populated and
+displayed.  This will help track down any mis-matches between Hamlib
+and your radio.
+
+Voice Keyer
+-----------
+
+Voice Keyer Button on Front Page
+Options-PTT Dialog
+
+Puts FreeDV and your radio into transmit, reads a wave file of your
+voice to call CQ, then switches to receive to see if anyone is
+replying.  If you press space bar the voice keyer stops.  If a signal
+with a valid sync is received for a few seconds the voice keyer stops.
+
+Options-PTT dialog can be used to select the wave file, set the Rx
+delay, and number of times the tx/rx cycle repeats.
+
+The wave file for the voice keyer should be in 8kHz mono 16 bit sample
+form.  Use a free application such as Audacity to convert a file you
+have recorded to this format.
+
+Test Frame Histogram
+--------------------
+
+Test Frame Histogram tab on Front Page
+
+Displays BER of each carrier when in "test frame" mode.  As each QPSK
+carrier has 2 bits there are 2*Nc histogram points.
+
+Ideally all carriers will have about the same BER (+/- 20% after 5000
+total bit errors).  However problems can occur with filtering in the
+tx path.  If one carrier has less power, then it will have a higher
+BER.  The errors in this carrier will tend to dominate overall
+BER. For example if one carrier is attenuated due to SSB filter ripple
+in the tx path then the BER on that carrier will be higher.  This is
+bad news for DV.
+
+Suggested usage: 
+
+i) Transmit FreeDV in test frame mode.  Use a 2nd rx (or
+get a friend) to monitor your rx signal with FreeDV in test frame
+mode.  
+
+ii) Adjust your rx SNR to get a BER of a few % (e.g. reduce tx
+power, use a short antenna for the rx, point your beam away, adjust rx
+RF gain).  
+
+iii) Monitor the error histogram for a few minutes, until you
+have say 5000 total bit errors.  You have a problem if the BER of any
+carrier is more than 20% different from the rest.
+
+A typical issue will be one carrier at 1.0, the others at 0.5,
+indicating the poorer carrier BER is twice the larger.
+
+Full Duplex Testing with loopback
+---------------------------------
+
+Options - Half Duplex check box
+
+FreeDV GUI can operate in full duplex mode which is useful for
+development of listening to your own FreeDV signal as only one PC is
+required.  Normal operation is half duplex.
+
+Tx and Rx signals can be looped back via an analog connection between
+the sound cards.
+
+On Linux, using the Alsa loopback module:
+
+  $ sudo modprobe snd-aloop
+  $ ./freedv
+
+  In Tools - Audio Config - Receive Tab  - From Radio select -> Loopback: Loopback PCM (hw:1,0)
+                          - Transmit Tab - To Radio select   -> Loopback: Loopback PCM (hw:1,1)
+
+TODO
+----
+
+[ ] Merge this information into existing start up guides
+
diff --git a/cmake/BuildCodec2.cmake b/cmake/BuildCodec2.cmake
new file mode 100644
index 0000000..678ce2e
--- /dev/null
+++ b/cmake/BuildCodec2.cmake
@@ -0,0 +1,26 @@
+set(SPEEXDSP_CMAKE_ARGS -DBUILD_SHARED_LIBS=FALSE -DCMAKE_INSTALL_PREFIX=${CMAKE_BINARY_DIR}/external/dist)
+
+if(USE_STATIC_SPEEXDSP)
+    list(APPEND SPEEXDSP_CMAKE_ARGS 
+        -DSPEEXDSP_LIBRARIES=${CMAKE_BINARY_DIR}/external/dist/lib/libspeexdsp.a
+        -DSPEEXDSP_INCLUDE_DIR=${CMAKE_BINARY_DIR}/external/dist/include)
+endif()
+
+set(CODEC2_CMAKE_ARGS -DUNITTEST=FALSE)
+
+if(CMAKE_CROSSCOMPILING)
+    set(CODEC2_CMAKE_ARGS ${CODEC2_CMAKE_ARGS} -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TOOLCHAIN_FILE})
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(codec2
+   SVN_REPOSITORY https://svn.code.sf.net/p/freetel/code/codec2/tags/0.7
+   CMAKE_ARGS ${CODEC2_CMAKE_ARGS} ${SPEEXDSP_CMAKE_ARGS} 
+   CMAKE_CACHE_ARGS -DCMAKE_OSX_DEPLOYMENT_TARGET:string=10.7
+   INSTALL_COMMAND ""
+)
+set(CODEC2_LIBRARIES
+    ${CMAKE_BINARY_DIR}/codec2-prefix/src/codec2-build/src/libcodec2.a)
+include_directories(${CMAKE_BINARY_DIR}/codec2-prefix/src/codec2/src)
+list(APPEND FREEDV_LINK_LIBS ${CODEC2_LIBRARIES})
+list(APPEND FREEDV_STATIC_DEPS codec2)
diff --git a/cmake/BuildHamlib.cmake b/cmake/BuildHamlib.cmake
new file mode 100644
index 0000000..4166f5a
--- /dev/null
+++ b/cmake/BuildHamlib.cmake
@@ -0,0 +1,20 @@
+set(HAMLIB_TARBALL "hamlib-1.2.15.3")
+
+include(ExternalProject)
+ExternalProject_Add(hamlib
+    URL http://downloads.sourceforge.net/hamlib/${HAMLIB_TARBALL}.tar.gz
+    BUILD_IN_SOURCE 1
+    INSTALL_DIR external/dist
+    CONFIGURE_COMMAND ./configure --prefix=${CMAKE_BINARY_DIR}/external/dist
+    BUILD_COMMAND $(MAKE)
+    INSTALL_COMMAND $(MAKE) install
+)
+if(WIN32)
+    set(HAMLIB_LIBRARIES ${CMAKE_BINARY_DIR}/external/dist/lib/portaudio.lib)
+else(WIN32)
+    set(HAMLIB_LIBRARIES
+    )
+endif(WIN32)
+include_directories(${CMAKE_BINARY_DIR}/external/dist/include)
+list(APPEND FREEDV_LINK_LIBS ${HAMLIB_LIBRARIES})
+list(APPEND FREEDV_STATIC_DEPS hamlib)
diff --git a/cmake/BuildPortaudio.cmake b/cmake/BuildPortaudio.cmake
new file mode 100644
index 0000000..cc33d06
--- /dev/null
+++ b/cmake/BuildPortaudio.cmake
@@ -0,0 +1,52 @@
+set(PORTAUDIO_TARBALL "pa_stable_v19_20111121")
+
+# required linking libraries on linux. Not sure about windows.
+find_library(ALSA_LIBRARIES asound)
+
+if(UNIX AND NOT ALSA_LIBRARIES)
+    message(ERROR "Could not find alsa library which is required for portaudio.
+On Linux systems try installing:
+    alsa-lib-devel  (RPM based systems)
+    libasound2-dev  (DEB based systems)"
+    )
+endif()
+
+# Make sure that configure knows what system we're using when cross-compiling.
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    include(cmake/MinGW.cmake)
+    set(CONFIGURE_COMMAND ./configure --build=${HOST} --host=${HOST} --target=${HOST} --enable-cxx --without-jack --disable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist)
+else()
+    set(CONFIGURE_COMMAND ./configure --enable-cxx --without-jack --disable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist)
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(portaudio
+    URL http://www.portaudio.com/archives/${PORTAUDIO_TARBALL}.tgz
+    BUILD_IN_SOURCE 1
+    INSTALL_DIR external/dist
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
+    BUILD_COMMAND $(MAKE)
+    INSTALL_COMMAND $(MAKE) install
+)
+if(WIN32)
+    set(PORTAUDIO_LIBRARIES 
+        ${CMAKE_BINARY_DIR}/external/dist/lib/libportaudio.a
+        ${CMAKE_BINARY_DIR}/external/dist/lib/libportaudiocpp.a
+)
+else(WIN32)
+    find_library(RT rt)
+    find_library(ASOUND asound)
+    set(PORTAUDIO_LIBRARIES
+        ${CMAKE_BINARY_DIR}/external/dist/lib/libportaudio.a
+        ${CMAKE_BINARY_DIR}/external/dist/lib/libportaudiocpp.a
+        ${RT}
+        ${ASOUND}
+    )
+endif(WIN32)
+include_directories(${CMAKE_BINARY_DIR}/external/dist/include)
+
+# Add the portaudio library to the list of libraries that must be linked.
+list(APPEND FREEDV_LINK_LIBS ${PORTAUDIO_LIBRARIES})
+
+# Setup a dependency so that this gets built before linking to freedv.
+list(APPEND FREEDV_STATIC_DEPS portaudio)
diff --git a/cmake/BuildSamplerate.cmake b/cmake/BuildSamplerate.cmake
new file mode 100644
index 0000000..8b6b7a3
--- /dev/null
+++ b/cmake/BuildSamplerate.cmake
@@ -0,0 +1,27 @@
+set(SAMPLERATE_TARBALL "libsamplerate-0.1.8")
+
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    set(CONFIGURE_COMMAND ./configure --build=${HOST} --host=${HOST} --target=${HOST} --prefix=${CMAKE_BINARY_DIR}/external/dist --disable-sndfile --disable-fftw)
+else()
+    set(CONFIGURE_COMMAND ./configure --prefix=${CMAKE_BINARY_DIR}/external/dist)
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(samplerate
+    URL http://www.mega-nerd.com/SRC/${SAMPLERATE_TARBALL}.tar.gz 
+    BUILD_IN_SOURCE 1
+    INSTALL_DIR external/dist
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
+    BUILD_COMMAND $(MAKE)
+    INSTALL_COMMAND $(MAKE) install
+)
+if(WIN32)
+    set(SAMPLERATE_LIBRARIES
+        ${CMAKE_BINARY_DIR}/external/dist/lib/libsamplerate.a)
+else(WIN32)
+    set(SAMPLERATE_LIBRARIES
+        ${CMAKE_BINARY_DIR}/external/dist/lib/libsamplerate.a)
+endif(WIN32)
+include_directories(${CMAKE_BINARY_DIR}/external/dist/include)
+list(APPEND FREEDV_LINK_LIBS ${SAMPLERATE_LIBRARIES})
+list(APPEND FREEDV_STATIC_DEPS samplerate)
diff --git a/cmake/BuildSndfile.cmake b/cmake/BuildSndfile.cmake
new file mode 100644
index 0000000..c49b638
--- /dev/null
+++ b/cmake/BuildSndfile.cmake
@@ -0,0 +1,26 @@
+set(SNDFILE_TARBALL "libsndfile-1.0.25")
+
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    set(CONFIGURE_COMMAND ./configure --host=${HOST}  --prefix=${CMAKE_BINARY_DIR}/external/dist --disable-external-libs --disable-shared --disable-sqlite)
+else()
+    set(CONFIGURE_COMMAND ./configure --prefix=${CMAKE_BINARY_DIR}/external/dist --disable-external-libs --disable-shared --disable-external-libs)
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(sndfile
+    URL http://www.mega-nerd.com/libsndfile/files/${SNDFILE_TARBALL}.tar.gz
+    BUILD_IN_SOURCE 1
+    INSTALL_DIR external/dist
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
+    BUILD_COMMAND $(MAKE) V=1
+    INSTALL_COMMAND $(MAKE) install
+)
+if(MINGW)
+    set(SNDFILE_LIBRARIES ${CMAKE_BINARY_DIR}/external/dist/lib/libsndfile.a)
+else()
+    set(SNDFILE_LIBRARIES ${CMAKE_BINARY_DIR}/external/dist/lib/libsndfile.a)
+endif()
+
+include_directories(${CMAKE_BINARY_DIR}/external/dist/include)
+list(APPEND FREEDV_LINK_LIBS ${SNDFILE_LIBRARIES})
+list(APPEND FREEDV_STATIC_DEPS sndfile)
diff --git a/cmake/BuildSpeex.cmake b/cmake/BuildSpeex.cmake
new file mode 100644
index 0000000..8d287ea
--- /dev/null
+++ b/cmake/BuildSpeex.cmake
@@ -0,0 +1,30 @@
+set(SPEEXDSP_TARBALL "speexdsp-1.2rc3.tar.gz")
+
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    include(cmake/MinGW.cmake)
+    set(CONFIGURE_COMMAND ./configure --host=${HOST} --prefix=${CMAKE_BINARY_DIR}/external/dist --disable-examples)
+else()
+    if(APPLE)
+        set(CONFIGURE_COMMAND ${CMAKE_BINARY_DIR}/../configure_speexdsp_osx.sh ${CMAKE_BINARY_DIR}/external/dist)
+    else()
+        set(CONFIGURE_COMMAND ./configure --prefix=${CMAKE_BINARY_DIR}/external/dist --disable-examples)
+    endif()
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(speex
+   URL http://downloads.xiph.org/releases/speex/${SPEEXDSP_TARBALL}
+   BUILD_IN_SOURCE 1
+   INSTALL_DIR external/dist
+   CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
+   BUILD_COMMAND $(MAKE)
+   INSTALL_COMMAND $(MAKE) install
+)
+
+set(SPEEXDSP_LIBRARIES ${CMAKE_BINARY_DIR}/external/dist/lib/libspeexdsp.a)
+include_directories(${CMAKE_BINARY_DIR}/external/dist/include)
+list(APPEND FREEDV_LINK_LIBS ${SPEEXDSP_LIBRARIES})
+list(APPEND FREEDV_STATIC_DEPS speex)
+if(USE_STATIC_CODEC2)
+    add_dependencies(codec2 speex)
+endif()
diff --git a/cmake/BuildWxWidgets.cmake b/cmake/BuildWxWidgets.cmake
new file mode 100644
index 0000000..901d806
--- /dev/null
+++ b/cmake/BuildWxWidgets.cmake
@@ -0,0 +1,43 @@
+set(WXWIDGETS_TARBALL "wxWidgets-3.0.2")
+
+# If we're cross-compiling then we need to set the target host manually.
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    include(cmake/MinGW.cmake)
+endif()
+
+# If not cross-compiling then use the built-in makefile, otherwise use standard configure.
+if(MINGW AND NOT CMAKE_CROSSCOMPILING)
+#    set(CONFIGURE_COMMAND "true")
+#    set(MAKE_COMMAND $(MAKE) -C build/msw -f makefile.gcc SHARED=0 UNICODE=1 BUILD=release PREFIX=${CMAKE_BINARY_DIR}/external/dist)
+    set(CONFIGURE_COMMAND ./configure --disable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist)
+	set(MAKE_COMMAND $(MAKE))
+endif()
+
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    set(CONFIGURE_COMMAND ./configure --build=${HOST} --host=${HOST} --target=${HOST} --disable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist)
+	set(MAKE_COMMAND $(MAKE))
+endif()
+
+if(NOT MINGW)
+    set(CONFIGURE_COMMAND ./configure --host=${HOST} --target=${HOST} --disable-shared --prefix=${CMAKE_BINARY_DIR}/external/dist)
+	set(MAKE_COMMAND $(MAKE))
+endif()
+
+include(ExternalProject)
+ExternalProject_Add(wxWidgets
+    URL http://downloads.sourceforge.net/wxwindows/${WXWIDGETS_TARBALL}.tar.bz2
+    BUILD_IN_SOURCE 1
+    INSTALL_DIR external/dist
+    CONFIGURE_COMMAND ${CONFIGURE_COMMAND}
+    BUILD_COMMAND ${MAKE_COMMAND}
+    INSTALL_COMMAND $(MAKE) install
+)
+
+ExternalProject_Get_Property(wxWidgets install_dir)
+message(STATUS "wxWidgets install dir: ${install_dir}")
+if(NOT WXCONFIG)
+    set(WXCONFIG "${install_dir}/bin/wx-config")
+endif()
+if(EXISTS ${WXCONFIG})
+    set(BS_WX_DONE TRUE)
+endif()
diff --git a/cmake/FindPortaudio.cmake b/cmake/FindPortaudio.cmake
new file mode 100644
index 0000000..158e20e
--- /dev/null
+++ b/cmake/FindPortaudio.cmake
@@ -0,0 +1,107 @@
+# - Try to find Portaudio
+# Once done this will define
+#
+#  PORTAUDIO_FOUND - system has Portaudio
+#  PORTAUDIO_INCLUDE_DIRS - the Portaudio include directory
+#  PORTAUDIO_LIBRARIES - Link these to use Portaudio
+#  PORTAUDIO_DEFINITIONS - Compiler switches required for using Portaudio
+#  PORTAUDIO_VERSION - Portaudio version
+#
+#  Copyright (c) 2006 Andreas Schneider <mail at cynapses.org>
+#
+# Redistribution and use is allowed according to the terms of the New BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+#
+
+
+if (PORTAUDIO_LIBRARIES AND PORTAUDIO_INCLUDE_DIRS)
+  # in cache already
+  set(PORTAUDIO_FOUND TRUE)
+else (PORTAUDIO_LIBRARIES AND PORTAUDIO_INCLUDE_DIRS)
+  if (NOT WIN32)
+   include(FindPkgConfig)
+   pkg_check_modules(PORTAUDIO2 portaudio-2.0)
+  endif (NOT WIN32)
+
+  if (PORTAUDIO2_FOUND)
+    set(PORTAUDIO_INCLUDE_DIRS
+      ${PORTAUDIO2_INCLUDE_DIRS}
+    )
+    if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+      set(PORTAUDIO_LIBRARIES "${PORTAUDIO2_LIBRARY_DIRS}/lib${PORTAUDIO2_LIBRARIES}.dylib")
+    else (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+      set(PORTAUDIO_LIBRARIES
+        ${PORTAUDIO2_LIBRARIES}
+      )
+    endif (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+    set(PORTAUDIO_VERSION
+      19
+    )
+    set(PORTAUDIO_FOUND TRUE)
+  else (PORTAUDIO2_FOUND)
+    find_path(PORTAUDIO_INCLUDE_DIR
+      NAMES
+        portaudio.h
+      PATHS
+        /usr/include
+        /usr/local/include
+        /opt/local/include
+        /sw/include
+    )
+   
+    find_library(PORTAUDIO_LIBRARY
+      NAMES
+        portaudio
+      PATHS
+        /usr/lib
+        /usr/local/lib
+        /opt/local/lib
+        /sw/lib
+    )
+   
+    find_path(PORTAUDIO_LIBRARY_DIR
+      NAMES
+        portaudio
+      PATHS
+        /usr/lib
+        /usr/local/lib
+        /opt/local/lib
+        /sw/lib
+    )
+   
+    set(PORTAUDIO_INCLUDE_DIRS
+      ${PORTAUDIO_INCLUDE_DIR}
+    )
+    set(PORTAUDIO_LIBRARIES
+      ${PORTAUDIO_LIBRARY}
+    )
+   
+    set(PORTAUDIO_LIBRARY_DIRS
+      ${PORTAUDIO_LIBRARY_DIR}
+    )
+   
+    set(PORTAUDIO_VERSION
+      18
+    )
+   
+    if (PORTAUDIO_INCLUDE_DIRS AND PORTAUDIO_LIBRARIES)
+       set(PORTAUDIO_FOUND TRUE)
+    endif (PORTAUDIO_INCLUDE_DIRS AND PORTAUDIO_LIBRARIES)
+   
+    if (PORTAUDIO_FOUND)
+      if (NOT Portaudio_FIND_QUIETLY)
+        message(STATUS "Found Portaudio: ${PORTAUDIO_LIBRARIES}")
+      endif (NOT Portaudio_FIND_QUIETLY)
+    else (PORTAUDIO_FOUND)
+      if (Portaudio_FIND_REQUIRED)
+        message(FATAL_ERROR "Could not find Portaudio")
+      endif (Portaudio_FIND_REQUIRED)
+    endif (PORTAUDIO_FOUND)
+  endif (PORTAUDIO2_FOUND)
+
+
+  # show the PORTAUDIO_INCLUDE_DIRS and PORTAUDIO_LIBRARIES variables only in the advanced view
+  mark_as_advanced(PORTAUDIO_INCLUDE_DIRS PORTAUDIO_LIBRARIES)
+
+endif (PORTAUDIO_LIBRARIES AND PORTAUDIO_INCLUDE_DIRS)
+
diff --git a/cmake/GetDependencies.cmake.in b/cmake/GetDependencies.cmake.in
new file mode 100644
index 0000000..7470aa6
--- /dev/null
+++ b/cmake/GetDependencies.cmake.in
@@ -0,0 +1,37 @@
+# As this script is run in a new cmake instance, it does not have access to
+# the existing cache variables. Pass them in via the configure_file command.
+set(CMAKE_BINARY_DIR @CMAKE_BINARY_DIR@)
+set(CMAKE_SOURCE_DIR @CMAKE_SOURCE_DIR@)
+set(UNIX @UNIX@)
+set(WIN32 @WIN32@)
+set(CMAKE_CROSSCOMPILING @CMAKE_CROSSCOMPILING@)
+set(CMAKE_FIND_LIBRARY_SUFFIXES @CMAKE_FIND_LIBRARY_SUFFIXES@)
+set(CMAKE_FIND_LIBRARY_PREFIXES @CMAKE_FIND_LIBRARY_PREFIXES@)
+set(CMAKE_SYSTEM_LIBRARY_PATH @CMAKE_SYSTEM_LIBRARY_PATH@)
+set(CMAKE_FIND_ROOT_PATH @CMAKE_FIND_ROOT_PATH@)
+
+set(FREEDV_EXE ${CMAKE_BINARY_DIR}/src/freedv.exe)
+
+include(GetPrerequisites)
+get_prerequisites("${FREEDV_EXE}" _deps 1 0 "" "")
+foreach(_runtime ${_deps})
+    message("Looking for ${_runtime}")
+    find_library(RUNTIME_${_runtime} ${_runtime})
+    message("${RUNTIME_${_runtime}}")
+    if(RUNTIME_${_runtime})
+        message("Looking for dependencies of ${_runtime}")
+        get_prerequisites("${RUNTIME_${_runtime}}" _deps2 1 0 "" "")
+        foreach(_runtime2 ${_deps2})
+            find_library(RUNTIME_${_runtime2} ${_runtime2})
+            message("${RUNTIME_${_runtime2}}")
+            if(RUNTIME_${_runtime2})
+                file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/bin"
+                TYPE EXECUTABLE FILES "${RUNTIME_${_runtime2}}")
+            endif()
+        endforeach()
+    endif()
+    if(RUNTIME_${_runtime})
+        file(INSTALL DESTINATION "${CMAKE_INSTALL_PREFIX}/bin"
+        TYPE EXECUTABLE FILES "${RUNTIME_${_runtime}}")
+    endif()
+endforeach()
diff --git a/cmake/MinGW.cmake b/cmake/MinGW.cmake
new file mode 100644
index 0000000..333c1dc
--- /dev/null
+++ b/cmake/MinGW.cmake
@@ -0,0 +1,8 @@
+# If we're cross-compiling then we need to set the target host manually.
+if(MINGW AND CMAKE_CROSSCOMPILING)
+    if(${CMAKE_SIZEOF_VOID_P} EQUAL 8)
+        set(HOST x86_64-w64-mingw32)
+    else()
+        set(HOST i686-w64-mingw32)
+    endif()
+endif()
diff --git a/cmake/Toolchain-Ubuntu-mingw32.cmake b/cmake/Toolchain-Ubuntu-mingw32.cmake
new file mode 100644
index 0000000..3507d72
--- /dev/null
+++ b/cmake/Toolchain-Ubuntu-mingw32.cmake
@@ -0,0 +1,25 @@
+# Sample toolchain file for building for Windows from an Ubuntu Linux system.
+#
+# Typical usage:
+#    *) install cross compiler: `sudo apt-get install mingw-w64 g++-mingw-w64`
+#    *) cd build
+#    *) cmake -DCMAKE_TOOLCHAIN_FILE=~/Toolchain-Ubuntu-mingw32.cmake ..
+
+set(CMAKE_SYSTEM_NAME Windows)
+set(TOOLCHAIN_PREFIX i686-w64-mingw32)
+
+# cross compilers to use for C and C++
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+# target environment on the build host system
+#   set 1st to dir with the cross compiler's C/C++ headers/libs
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
+
+# modify default behavior of FIND_XXX() commands to
+# search for headers/libs in the target environment and
+# search for programs in the build host environment
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
diff --git a/cmake/config.h.in b/cmake/config.h.in
new file mode 100644
index 0000000..8e3ab76
--- /dev/null
+++ b/cmake/config.h.in
@@ -0,0 +1,19 @@
+/*--------------------------------------------------------------------------
+ ** This file is autogenerated from config.h.in 
+ ** during the cmake configuration of your project. If you need to make changes
+ ** edit the original file NOT THIS FILE.
+ ** --------------------------------------------------------------------------*/
+#ifndef _CONFIGURATION_HEADER_GUARD_H_
+#define _CONFIGURATION_HEADER_GUARD_H_
+
+#define SIZEOF_INT @SIZEOF_INT@
+#cmakedefine HAVE_LIMITS_H @HAVE_LIMITS_H@
+#cmakedefine HAVE_STDINT_H @HAVE_STDINT_H@
+#cmakedefine HAVE_STDDEF_H @HAVE_STDDEF_H@
+#cmakedefine HAVE_STDLIB_H @HAVE_STDLIB_H@
+#cmakedefine HAVE_STRING_H @HAVE_STRING_H@
+#cmakedefine HAVE_FLOOR @HAVE_FLOOR@
+#cmakedefine HAVE_MEMSET @HAVE_MEMSET@
+#cmakedefine HAVE_POW @HAVE_POW@
+#cmakedefine HAVE_SQRT @HAVE_SQRT@
+#endif
diff --git a/cmake/soxconfig.h.in b/cmake/soxconfig.h.in
new file mode 100644
index 0000000..fb38608
--- /dev/null
+++ b/cmake/soxconfig.h.in
@@ -0,0 +1,16 @@
+#define PACKAGE_VERSION "14.4.2"
+
+#cmakedefine HAVE_BYTESWAP_H          1
+#cmakedefine HAVE_FMEMOPEN            1
+#cmakedefine HAVE_FSEEKO              1
+#cmakedefine HAVE__FSEEKOI64          1
+#cmakedefine HAVE_LTDL_H              1
+#cmakedefine HAVE_MAGIC               1
+#cmakedefine HAVE_POPEN               1
+#cmakedefine HAVE_STDINT_H            1
+#cmakedefine HAVE_INTTYPES_H          1
+#cmakedefine HAVE_STRCASECMP          1
+#cmakedefine HAVE_STRINGS_H           1
+#cmakedefine HAVE_SYS_STAT_H          1
+#cmakedefine HAVE_SYS_TYPES_H         1
+#cmakedefine HAVE_VSNPRINTF           1
diff --git a/cmake/version.h.in b/cmake/version.h.in
new file mode 100644
index 0000000..43b3b7a
--- /dev/null
+++ b/cmake/version.h.in
@@ -0,0 +1,11 @@
+#ifndef FREEDV_VER_DOT_H
+#define FREEDV_VER_DOT_H 1
+
+#define FREEDV_VERSION_MAJOR @FREEDV_VERSION_MAJOR@
+#define FREEDV_VERSION_MINOR @FREEDV_VERSION_MINOR@
+#define FREEDV_VERSION_PATCH @FREEDV_VERSION_PATCH@
+#define FREEDV_VERSION_SUFFIX "@FREEDV_VERSION_SUFFIX@"
+
+#define FREEDV_VERSION "@FREEDV_VERSION_STRING@"
+
+#endif //FREEDV_VER_DOT_H
diff --git a/contrib/CMakeLists.txt b/contrib/CMakeLists.txt
new file mode 100644
index 0000000..3f4b7e0
--- /dev/null
+++ b/contrib/CMakeLists.txt
@@ -0,0 +1,22 @@
+# Install icons if we're on most *nix systems.
+if(UNIX AND NOT APPLE)
+    set(ICON_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX}/share/icons/hicolor
+        CACHE PATH "Prefix to use for installing icons.")
+    install(FILES freedv48x48.png
+        DESTINATION ${ICON_INSTALL_PREFIX}/48x48/apps
+        RENAME freedv.png)
+    install(FILES freedv64x64.png
+        DESTINATION ${ICON_INSTALL_PREFIX}/64x64/apps
+        RENAME freedv.png)
+    install(FILES freedv128x128.png
+        DESTINATION ${ICON_INSTALL_PREFIX}/128x128/apps
+        RENAME freedv.png)
+    install(FILES freedv256x256.png
+        DESTINATION ${ICON_INSTALL_PREFIX}/256x256/apps
+        RENAME freedv.png)
+
+    set(DESKTOP_INSTALL_DIR ${CMAKE_INSTALL_PREFIX}/share/applications
+        CACHE PATH "Location to install desktop files.")
+    install(FILES freedv.desktop
+        DESTINATION ${DESKTOP_INSTALL_DIR})
+endif(UNIX AND NOT APPLE)
diff --git a/contrib/LICENSE b/contrib/LICENSE
new file mode 100644
index 0000000..dc8853a
--- /dev/null
+++ b/contrib/LICENSE
@@ -0,0 +1,393 @@
+Attribution 4.0 International
+
+=======================================================================
+
+Creative Commons Corporation ("Creative Commons") is not a law firm and
+does not provide legal services or legal advice. Distribution of
+Creative Commons public licenses does not create a lawyer-client or
+other relationship. Creative Commons makes its licenses and related
+information available on an "as-is" basis. Creative Commons gives no
+warranties regarding its licenses, any material licensed under their
+terms and conditions, or any related information. Creative Commons
+disclaims all liability for damages resulting from their use to the
+fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and
+conditions that creators and other rights holders may use to share
+original works of authorship and other material subject to copyright
+and certain other rights specified in the public license below. The
+following considerations are for informational purposes only, are not
+exhaustive, and do not form part of our licenses.
+
+     Considerations for licensors: Our public licenses are
+     intended for use by those authorized to give the public
+     permission to use material in ways otherwise restricted by
+     copyright and certain other rights. Our licenses are
+     irrevocable. Licensors should read and understand the terms
+     and conditions of the license they choose before applying it.
+     Licensors should also secure all rights necessary before
+     applying our licenses so that the public can reuse the
+     material as expected. Licensors should clearly mark any
+     material not subject to the license. This includes other CC-
+     licensed material, or material used under an exception or
+     limitation to copyright. More considerations for licensors:
+	wiki.creativecommons.org/Considerations_for_licensors
+
+     Considerations for the public: By using one of our public
+     licenses, a licensor grants the public permission to use the
+     licensed material under specified terms and conditions. If
+     the licensor's permission is not necessary for any reason--for
+     example, because of any applicable exception or limitation to
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+     licenses grant only permissions under copyright and certain
+     other rights that a licensor has authority to grant. Use of
+     the licensed material may still be restricted for other
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+     rights in the material. A licensor may make special requests,
+     such as asking that all changes be marked or described.
+     Although not required by our licenses, you are encouraged to
+     respect those requests where reasonable. More_considerations
+     for the public: 
+	wiki.creativecommons.org/Considerations_for_licensees
+
+=======================================================================
+
+Creative Commons Attribution 4.0 International Public License
+
+By exercising the Licensed Rights (defined below), You accept and agree
+to be bound by the terms and conditions of this Creative Commons
+Attribution 4.0 International Public License ("Public License"). To the
+extent this Public License may be interpreted as a contract, You are
+granted the Licensed Rights in consideration of Your acceptance of
+these terms and conditions, and the Licensor grants You such rights in
+consideration of benefits the Licensor receives from making the
+Licensed Material available under these terms and conditions.
+
+
+Section 1 -- Definitions.
+
+  a. Adapted Material means material subject to Copyright and Similar
+     Rights that is derived from or based upon the Licensed Material
+     and in which the Licensed Material is translated, altered,
+     arranged, transformed, or otherwise modified in a manner requiring
+     permission under the Copyright and Similar Rights held by the
+     Licensor. For purposes of this Public License, where the Licensed
+     Material is a musical work, performance, or sound recording,
+     Adapted Material is always produced where the Licensed Material is
+     synched in timed relation with a moving image.
+
+  b. Adapter's License means the license You apply to Your Copyright
+     and Similar Rights in Your contributions to Adapted Material in
+     accordance with the terms and conditions of this Public License.
+
+  c. Copyright and Similar Rights means copyright and/or similar rights
+     closely related to copyright including, without limitation,
+     performance, broadcast, sound recording, and Sui Generis Database
+     Rights, without regard to how the rights are labeled or
+     categorized. For purposes of this Public License, the rights
+     specified in Section 2(b)(1)-(2) are not Copyright and Similar
+     Rights.
+
+  d. Effective Technological Measures means those measures that, in the
+     absence of proper authority, may not be circumvented under laws
+     fulfilling obligations under Article 11 of the WIPO Copyright
+     Treaty adopted on December 20, 1996, and/or similar international
+     agreements.
+
+  e. Exceptions and Limitations means fair use, fair dealing, and/or
+     any other exception or limitation to Copyright and Similar Rights
+     that applies to Your use of the Licensed Material.
+
+  f. Licensed Material means the artistic or literary work, database,
+     or other material to which the Licensor applied this Public
+     License.
+
+  g. Licensed Rights means the rights granted to You subject to the
+     terms and conditions of this Public License, which are limited to
+     all Copyright and Similar Rights that apply to Your use of the
+     Licensed Material and that the Licensor has authority to license.
+
+  h. Licensor means the individual(s) or entity(ies) granting rights
+     under this Public License.
+
+  i. Share means to provide material to the public by any means or
+     process that requires permission under the Licensed Rights, such
+     as reproduction, public display, public performance, distribution,
+     dissemination, communication, or importation, and to make material
+     available to the public including in ways that members of the
+     public may access the material from a place and at a time
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+
+  j. Sui Generis Database Rights means rights other than copyright
+     resulting from Directive 96/9/EC of the European Parliament and of
+     the Council of 11 March 1996 on the legal protection of databases,
+     as amended and/or succeeded, as well as other essentially
+     equivalent rights anywhere in the world.
+
+  k. You means the individual or entity exercising the Licensed Rights
+     under this Public License. Your has a corresponding meaning.
+
+
+Section 2 -- Scope.
+
+  a. License grant.
+
+       1. Subject to the terms and conditions of this Public License,
+          the Licensor hereby grants You a worldwide, royalty-free,
+          non-sublicensable, non-exclusive, irrevocable license to
+          exercise the Licensed Rights in the Licensed Material to:
+
+            a. reproduce and Share the Licensed Material, in whole or
+               in part; and
+
+            b. produce, reproduce, and Share Adapted Material.
+
+       2. Exceptions and Limitations. For the avoidance of doubt, where
+          Exceptions and Limitations apply to Your use, this Public
+          License does not apply, and You do not need to comply with
+          its terms and conditions.
+
+       3. Term. The term of this Public License is specified in Section
+          6(a).
+
+       4. Media and formats; technical modifications allowed. The
+          Licensor authorizes You to exercise the Licensed Rights in
+          all media and formats whether now known or hereafter created,
+          and to make technical modifications necessary to do so. The
+          Licensor waives and/or agrees not to assert any right or
+          authority to forbid You from making technical modifications
+          necessary to exercise the Licensed Rights, including
+          technical modifications necessary to circumvent Effective
+          Technological Measures. For purposes of this Public License,
+          simply making modifications authorized by this Section 2(a)
+          (4) never produces Adapted Material.
+
+       5. Downstream recipients.
+
+            a. Offer from the Licensor -- Licensed Material. Every
+               recipient of the Licensed Material automatically
+               receives an offer from the Licensor to exercise the
+               Licensed Rights under the terms and conditions of this
+               Public License.
+
+            b. No downstream restrictions. You may not offer or impose
+               any additional or different terms or conditions on, or
+               apply any Effective Technological Measures to, the
+               Licensed Material if doing so restricts exercise of the
+               Licensed Rights by any recipient of the Licensed
+               Material.
+
+       6. No endorsement. Nothing in this Public License constitutes or
+          may be construed as permission to assert or imply that You
+          are, or that Your use of the Licensed Material is, connected
+          with, or sponsored, endorsed, or granted official status by,
+          the Licensor or others designated to receive attribution as
+          provided in Section 3(a)(1)(A)(i).
+
+  b. Other rights.
+
+       1. Moral rights, such as the right of integrity, are not
+          licensed under this Public License, nor are publicity,
+          privacy, and/or other similar personality rights; however, to
+          the extent possible, the Licensor waives and/or agrees not to
+          assert any such rights held by the Licensor to the limited
+          extent necessary to allow You to exercise the Licensed
+          Rights, but not otherwise.
+
+       2. Patent and trademark rights are not licensed under this
+          Public License.
+
+       3. To the extent possible, the Licensor waives any right to
+          collect royalties from You for the exercise of the Licensed
+          Rights, whether directly or through a collecting society
+          under any voluntary or waivable statutory or compulsory
+          licensing scheme. In all other cases the Licensor expressly
+          reserves any right to collect such royalties.
+
+
+Section 3 -- License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the
+following conditions.
+
+  a. Attribution.
+
+       1. If You Share the Licensed Material (including in modified
+          form), You must:
+
+            a. retain the following if it is supplied by the Licensor
+               with the Licensed Material:
+
+                 i. identification of the creator(s) of the Licensed
+                    Material and any others designated to receive
+                    attribution, in any reasonable manner requested by
+                    the Licensor (including by pseudonym if
+                    designated);
+
+                ii. a copyright notice;
+
+               iii. a notice that refers to this Public License;
+
+                iv. a notice that refers to the disclaimer of
+                    warranties;
+
+                 v. a URI or hyperlink to the Licensed Material to the
+                    extent reasonably practicable;
+
+            b. indicate if You modified the Licensed Material and
+               retain an indication of any previous modifications; and
+
+            c. indicate the Licensed Material is licensed under this
+               Public License, and include the text of, or the URI or
+               hyperlink to, this Public License.
+
+       2. You may satisfy the conditions in Section 3(a)(1) in any
+          reasonable manner based on the medium, means, and context in
+          which You Share the Licensed Material. For example, it may be
+          reasonable to satisfy the conditions by providing a URI or
+          hyperlink to a resource that includes the required
+          information.
+
+       3. If requested by the Licensor, You must remove any of the
+          information required by Section 3(a)(1)(A) to the extent
+          reasonably practicable.
+
+       4. If You Share Adapted Material You produce, the Adapter's
+          License You apply must not prevent recipients of the Adapted
+          Material from complying with this Public License.
+
+
+Section 4 -- Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that
+apply to Your use of the Licensed Material:
+
+  a. for the avoidance of doubt, Section 2(a)(1) grants You the right
+     to extract, reuse, reproduce, and Share all or a substantial
+     portion of the contents of the database;
+
+  b. if You include all or a substantial portion of the database
+     contents in a database in which You have Sui Generis Database
+     Rights, then the database in which You have Sui Generis Database
+     Rights (but not its individual contents) is Adapted Material; and
+
+  c. You must comply with the conditions in Section 3(a) if You Share
+     all or a substantial portion of the contents of the database.
+
+For the avoidance of doubt, this Section 4 supplements and does not
+replace Your obligations under this Public License where the Licensed
+Rights include other Copyright and Similar Rights.
+
+
+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
+
+  a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE
+     EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS
+     AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF
+     ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS,
+     IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION,
+     WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR
+     PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS,
+     ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT
+     KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT
+     ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.
+
+  b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE
+     TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION,
+     NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT,
+     INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES,
+     COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR
+     USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN
+     ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR
+     DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR
+     IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.
+
+  c. The disclaimer of warranties and limitation of liability provided
+     above shall be interpreted in a manner that, to the extent
+     possible, most closely approximates an absolute disclaimer and
+     waiver of all liability.
+
+
+Section 6 -- Term and Termination.
+
+  a. This Public License applies for the term of the Copyright and
+     Similar Rights licensed here. However, if You fail to comply with
+     this Public License, then Your rights under this Public License
+     terminate automatically.
+
+  b. Where Your right to use the Licensed Material has terminated under
+     Section 6(a), it reinstates:
+
+       1. automatically as of the date the violation is cured, provided
+          it is cured within 30 days of Your discovery of the
+          violation; or
+
+       2. upon express reinstatement by the Licensor.
+
+     For the avoidance of doubt, this Section 6(b) does not affect any
+     right the Licensor may have to seek remedies for Your violations
+     of this Public License.
+
+  c. For the avoidance of doubt, the Licensor may also offer the
+     Licensed Material under separate terms or conditions or stop
+     distributing the Licensed Material at any time; however, doing so
+     will not terminate this Public License.
+
+  d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
+     License.
+
+
+Section 7 -- Other Terms and Conditions.
+
+  a. The Licensor shall not be bound by any additional or different
+     terms or conditions communicated by You unless expressly agreed.
+
+  b. Any arrangements, understandings, or agreements regarding the
+     Licensed Material not stated herein are separate from and
+     independent of the terms and conditions of this Public License.
+
+
+Section 8 -- Interpretation.
+
+  a. For the avoidance of doubt, this Public License does not, and
+     shall not be interpreted to, reduce, limit, restrict, or impose
+     conditions on any use of the Licensed Material that could lawfully
+     be made without permission under this Public License.
+
+  b. To the extent possible, if any provision of this Public License is
+     deemed unenforceable, it shall be automatically reformed to the
+     minimum extent necessary to make it enforceable. If the provision
+     cannot be reformed, it shall be severed from this Public License
+     without affecting the enforceability of the remaining terms and
+     conditions.
+
+  c. No term or condition of this Public License will be waived and no
+     failure to comply consented to unless expressly agreed to by the
+     Licensor.
+
+  d. Nothing in this Public License constitutes or may be interpreted
+     as a limitation upon, or waiver of, any privileges and immunities
+     that apply to the Licensor or You, including from the legal
+     processes of any jurisdiction or authority.
+
+
+=======================================================================
+
+Creative Commons is not a party to its public licenses.
+Notwithstanding, Creative Commons may elect to apply one of its public
+licenses to material it publishes and in those instances will be
+considered the "Licensor." Except for the limited purpose of indicating
+that material is shared under a Creative Commons public license or as
+otherwise permitted by the Creative Commons policies published at
+creativecommons.org/policies, Creative Commons does not authorize the
+use of the trademark "Creative Commons" or any other trademark or logo
+of Creative Commons without its prior written consent including,
+without limitation, in connection with any unauthorized modifications
+to any of its public licenses or any other arrangements,
+understandings, or agreements concerning use of licensed material. For
+the avoidance of doubt, this paragraph does not form part of the public
+licenses.
+
+Creative Commons may be contacted at creativecommons.org.
diff --git a/contrib/freedv.desktop b/contrib/freedv.desktop
new file mode 100644
index 0000000..96e8293
--- /dev/null
+++ b/contrib/freedv.desktop
@@ -0,0 +1,8 @@
+[Desktop Entry]
+Version=1.0
+Name=FreeDV
+Exec=freedv
+Icon=freedv
+Type=Application
+Terminal=false
+Categories=GTK;GNOME;AudioVideo;Audio;HamRadio;
diff --git a/contrib/freedv.ico b/contrib/freedv.ico
new file mode 100644
index 0000000..e6b9a20
Binary files /dev/null and b/contrib/freedv.ico differ
diff --git a/contrib/freedv.rc b/contrib/freedv.rc
new file mode 100644
index 0000000..2e6655d
--- /dev/null
+++ b/contrib/freedv.rc
@@ -0,0 +1 @@
+id ICON "./freedv.ico"
diff --git a/contrib/freedv128x128.png b/contrib/freedv128x128.png
new file mode 100644
index 0000000..5190a77
Binary files /dev/null and b/contrib/freedv128x128.png differ
diff --git a/contrib/freedv256x256.png b/contrib/freedv256x256.png
new file mode 100644
index 0000000..b3eb5d7
Binary files /dev/null and b/contrib/freedv256x256.png differ
diff --git a/contrib/freedv48x48.png b/contrib/freedv48x48.png
new file mode 100644
index 0000000..bd5efc6
Binary files /dev/null and b/contrib/freedv48x48.png differ
diff --git a/contrib/freedv64x64.png b/contrib/freedv64x64.png
new file mode 100644
index 0000000..eb89773
Binary files /dev/null and b/contrib/freedv64x64.png differ
diff --git a/contrib/freedv_screenshot.png b/contrib/freedv_screenshot.png
new file mode 100644
index 0000000..f93e3c5
Binary files /dev/null and b/contrib/freedv_screenshot.png differ
diff --git a/credits.txt b/credits.txt
new file mode 100644
index 0000000..431e399
--- /dev/null
+++ b/credits.txt
@@ -0,0 +1,13 @@
+Credits (code or ideas borrowed from):
+==============================================
+Dave Witten and David Rowe (obviously)
+Mel Whitten K0PFX (material and moral support)
+Bruce Perens (cheerleader, promotion and publicity)
+Mooneer Salem KG6AOV(Mac OSX Patch)
+Soeren Straarup OZ2DAK (FreeBSD Port)
+Don Mak
+Steve Nance (K5FR)
+Joel Stanley (Hamlib prototyping) and Mark Jessop (Mac OSX) 
+James Ahlstrom (Quisk)
+FLDIGI
+All the folks on the digital voice google group...
diff --git a/db/current b/db/current
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/db/current
@@ -0,0 +1 @@
+1
diff --git a/db/format b/db/format
new file mode 100644
index 0000000..db06890
--- /dev/null
+++ b/db/format
@@ -0,0 +1,2 @@
+4
+layout sharded 1000
diff --git a/db/fs-type b/db/fs-type
new file mode 100644
index 0000000..4fdd953
--- /dev/null
+++ b/db/fs-type
@@ -0,0 +1 @@
+fsfs
diff --git a/db/fsfs.conf b/db/fsfs.conf
new file mode 100644
index 0000000..cc08ceb
--- /dev/null
+++ b/db/fsfs.conf
@@ -0,0 +1,38 @@
+### This file controls the configuration of the FSFS filesystem.
+
+[memcached-servers]
+### These options name memcached servers used to cache internal FSFS
+### data.  See http://www.danga.com/memcached/ for more information on
+### memcached.  To use memcached with FSFS, run one or more memcached
+### servers, and specify each of them as an option like so:
+# first-server = 127.0.0.1:11211
+# remote-memcached = mymemcached.corp.example.com:11212
+### The option name is ignored; the value is of the form HOST:PORT.
+### memcached servers can be shared between multiple repositories;
+### however, if you do this, you *must* ensure that repositories have
+### distinct UUIDs and paths, or else cached data from one repository
+### might be used by another accidentally.  Note also that memcached has
+### no authentication for reads or writes, so you must ensure that your
+### memcached servers are only accessible by trusted users.
+
+[caches]
+### When a cache-related error occurs, normally Subversion ignores it
+### and continues, logging an error if the server is appropriately
+### configured (and ignoring it with file:// access).  To make
+### Subversion never ignore cache errors, uncomment this line.
+# fail-stop = true
+
+[rep-sharing]
+### To conserve space, the filesystem can optionally avoid storing
+### duplicate representations.  This comes at a slight cost in
+### performance, as maintaining a database of shared representations can
+### increase commit times.  The space savings are dependent upon the size
+### of the repository, the number of objects it contains and the amount of
+### duplication between them, usually a function of the branching and
+### merging process.
+###
+### The following parameter enables rep-sharing in the repository.  It can
+### be switched on and off at will, but for best space-saving results
+### should be enabled consistently over the life of the repository.
+### rep-sharing is enabled by default.
+# enable-rep-sharing = true
diff --git a/db/min-unpacked-rev b/db/min-unpacked-rev
new file mode 100644
index 0000000..573541a
--- /dev/null
+++ b/db/min-unpacked-rev
@@ -0,0 +1 @@
+0
diff --git a/db/rep-cache.db b/db/rep-cache.db
new file mode 100644
index 0000000..63c6f0b
Binary files /dev/null and b/db/rep-cache.db differ
diff --git a/db/revprops/0/0 b/db/revprops/0/0
new file mode 100644
index 0000000..d0b90de
--- /dev/null
+++ b/db/revprops/0/0
@@ -0,0 +1,5 @@
+K 8
+svn:date
+V 27
+2012-08-21T18:27:59.389906Z
+END
diff --git a/db/revprops/0/1 b/db/revprops/0/1
new file mode 100644
index 0000000..0af71a2
--- /dev/null
+++ b/db/revprops/0/1
@@ -0,0 +1,13 @@
+K 10
+svn:author
+V 9
+OFA-Staff
+K 8
+svn:date
+V 27
+2012-08-21T18:28:08.741468Z
+K 7
+svn:log
+V 25
+Imported folder structure
+END
diff --git a/db/revs/0/0 b/db/revs/0/0
new file mode 100644
index 0000000..10f5c45
--- /dev/null
+++ b/db/revs/0/0
@@ -0,0 +1,11 @@
+PLAIN
+END
+ENDREP
+id: 0.0.r0/17
+type: dir
+count: 0
+text: 0 0 4 4 2d2977d1c96f487abe4a1e202dd03b4e
+cpath: /
+
+
+17 107
diff --git a/db/revs/0/1 b/db/revs/0/1
new file mode 100644
index 0000000..fd802a9
--- /dev/null
+++ b/db/revs/0/1
@@ -0,0 +1,49 @@
+id: 3-1.0.r1/0
+type: dir
+count: 0
+cpath: /tags
+copyroot: 0 /
+
+id: 0-1.0.r1/62
+type: dir
+count: 0
+cpath: /trunk
+copyroot: 0 /
+
+id: 2-1.0.r1/126
+type: dir
+count: 0
+cpath: /branches
+copyroot: 0 /
+
+PLAIN
+K 8
+branches
+V 16
+dir 2-1.0.r1/126
+K 4
+tags
+V 14
+dir 3-1.0.r1/0
+K 5
+trunk
+V 15
+dir 0-1.0.r1/62
+END
+ENDREP
+id: 0.0.r1/306
+type: dir
+pred: 0.0.r0/17
+count: 1
+text: 1 194 99 99 7b6cc14dddba4e09be5255b475d1a0a8
+cpath: /
+copyroot: 0 /
+
+_0.0.t0-0 add-dir false false /trunk
+
+_2.0.t0-0 add-dir false false /branches
+
+_3.0.t0-0 add-dir false false /tags
+
+
+306 431
diff --git a/db/txn-current b/db/txn-current
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/db/txn-current
@@ -0,0 +1 @@
+1
diff --git a/db/txn-current-lock b/db/txn-current-lock
new file mode 100644
index 0000000..e69de29
diff --git a/db/uuid b/db/uuid
new file mode 100644
index 0000000..0f36297
--- /dev/null
+++ b/db/uuid
@@ -0,0 +1 @@
+a56d66ce-6468-4744-9be7-52ce95ca47a4
diff --git a/db/write-lock b/db/write-lock
new file mode 100644
index 0000000..e69de29
diff --git a/debian/changelog b/debian/changelog
new file mode 100644
index 0000000..ddfe80b
--- /dev/null
+++ b/debian/changelog
@@ -0,0 +1,5 @@
+freedv (1.0-150830) unstable; urgency=low
+
+  * Subversion snapshot of tag 1.0.
+
+ -- Stuart Longland <stuartl at longlandclan.yi.org>  Sun, 30 Aug 2015 09:01:13 +1000
diff --git a/debian/compat b/debian/compat
new file mode 100644
index 0000000..ec63514
--- /dev/null
+++ b/debian/compat
@@ -0,0 +1 @@
+9
diff --git a/debian/control b/debian/control
new file mode 100644
index 0000000..d1472b2
--- /dev/null
+++ b/debian/control
@@ -0,0 +1,19 @@
+Source: fdmdv2
+Section: main
+Priority: optional
+Maintainer: Stuart Longland <stuartl at longlandclan.yi.org>
+Build-Depends: debhelper (>= 9), cmake, libcodec2-dev, libgtk2.0-dev,
+ libhamlib-dev, libsamplerate-dev, libasound2-dev, libao-dev, libgsm1-dev,
+ portaudio19-dev, libsox-dev, libsndfile1-dev, libwxgtk3.0-dev
+Standards-Version: 3.9.5
+Homepage: http://www.freedv.org
+#Vcs-Git: git://anonscm.debian.org/collab-maint/freedv.git
+#Vcs-Browser: http://anonscm.debian.org/?p=collab-maint/freedv.git;a=summary
+
+Package: freedv
+Architecture: any
+Depends: ${shlibs:Depends}, ${misc:Depends}, libcodec2
+Description: FreeDV: Open-Source Digital Voice modem
+ FreeDV is a digital voice modem that can transmit voice-quality
+ audio digitally over HF radio links in as little as 1.25kHz
+ bandwidth in varying conditions.
diff --git a/debian/copyright b/debian/copyright
new file mode 100644
index 0000000..b55a293
--- /dev/null
+++ b/debian/copyright
@@ -0,0 +1,38 @@
+Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
+Upstream-Name: freedv
+Source: <url://example.com>
+
+Files: *
+Copyright: <years> <put author's name and email here>
+           <years> <likewise for another author>
+License: <special license>
+ <Put the license of the package here indented by 1 space>
+ <This follows the format of Description: lines in control file>
+ .
+ <Including paragraphs>
+
+# If you want to use GPL v2 or later for the /debian/* files use 
+# the following clauses, or change it to suit. Delete these two lines
+Files: debian/*
+Copyright: 2015 unknown <stuartl at unknown>
+License: GPL-2+
+ This package is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+ .
+ This package is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ .
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>
+ .
+ On Debian systems, the complete text of the GNU General
+ Public License version 2 can be found in "/usr/share/common-licenses/GPL-2".
+
+# Please also look if there are files or directories which have a
+# different copyright/license attached and list them here.
+# Please avoid to pick license terms that are more restrictive than the
+# packaged work, as it may make Debian's contributions unacceptable upstream.
diff --git a/debian/docs b/debian/docs
new file mode 100644
index 0000000..acfbcb3
--- /dev/null
+++ b/debian/docs
@@ -0,0 +1,3 @@
+credits.txt
+README.txt
+README.txt
diff --git a/debian/format b/debian/format
new file mode 100644
index 0000000..163aaf8
--- /dev/null
+++ b/debian/format
@@ -0,0 +1 @@
+3.0 (quilt)
diff --git a/debian/rules b/debian/rules
new file mode 100755
index 0000000..ad89215
--- /dev/null
+++ b/debian/rules
@@ -0,0 +1,30 @@
+#!/usr/bin/make -f
+# See debhelper(7) (uncomment to enable)
+# output every command that modifies files on the build system.
+#DH_VERBOSE = 1
+
+# see EXAMPLES in dpkg-buildflags(1) and read /usr/share/dpkg/*
+DPKG_EXPORT_BUILDFLAGS = 1
+include /usr/share/dpkg/default.mk
+
+# see FEATURE AREAS in dpkg-buildflags(1)
+#export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+
+# see ENVIRONMENT in dpkg-buildflags(1)
+# package maintainers to append CFLAGS
+#export DEB_CFLAGS_MAINT_APPEND  = -Wall -pedantic
+# package maintainers to append LDFLAGS
+#export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed
+
+
+# main packaging script based on dh7 syntax
+%:
+	dh $@ 
+
+# debmake generated override targets
+# This is example for Cmake (See http://bugs.debian.org/641051 )
+override_dh_auto_configure:
+	dh_auto_configure -- \
+	       -DCMAKE_LIBRARY_PATH=$(DEB_HOST_MULTIARCH) \
+	       -DUSE_STATIC_CODEC2=FALSE \
+	       -DUSE_STATIC_SPEEXDSP=FALSE
diff --git a/script/spot.sh b/script/spot.sh
new file mode 100644
index 0000000..cb1309a
--- /dev/null
+++ b/script/spot.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+#
+# spot.sh
+# David Rowe Sep 2015
+#
+
+# Demo script for "spotting" based on FreeDV txt string. Posts a
+# date-stamped text file to a web server.  Called from FreeDV GUI
+# program when a callsign is received in the txt msg.
+
+
+# Q: how to remove repeated spots, or those close in time?
+#
+# Set up automated lftp login:
+#
+#   $ lftp ftp://username@server
+#   Password:
+#   lftp username at server:~>  set bmk:save-passwords true
+#   lftp username at server:~> bookmark add yourserver
+#   lftp username at server:~> bookmark list
+#   lftp username at server:~> quit
+
+SPOTFILE=/home/david/tmp/freedvspot.html
+FTPSERVER=ftp.rowetel.com
+
+echo `date -u` "  " $1 "<br>" >> $SPOTFILE
+tail -n 25 $SPOTFILE > /tmp/spot.tmp1
+mv /tmp/spot.tmp1 $SPOTFILE
+lftp -e "cd www;put $SPOTFILE;quit" $FTPSERVER
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
new file mode 100644
index 0000000..ef0798b
--- /dev/null
+++ b/src/CMakeLists.txt
@@ -0,0 +1,79 @@
+set(FREEDV_SOURCES
+    dlg_audiooptions.cpp
+    dlg_filter.cpp
+    dlg_options.cpp
+    dlg_ptt.cpp
+    dlg_plugin.cpp
+    fdmdv2_main.cpp
+    fdmdv2_pa_wrapper.cpp
+    fdmdv2_plot.cpp
+    fdmdv2_plot_scalar.cpp
+    fdmdv2_plot_scatter.cpp
+    fdmdv2_plot_spectrum.cpp
+    fdmdv2_plot_waterfall.cpp
+    hamlib.cpp
+    serialport.cpp
+    topFrame.cpp
+    sox_biquad.c
+    comp.h
+    dlg_audiooptions.h
+    dlg_filter.h
+    dlg_options.h
+    dlg_ptt.h
+    fdmdv2_defines.h
+    fdmdv2_main.h
+    fdmdv2_pa_wrapper.h
+    fdmdv2_plot.h
+    fdmdv2_plot_scalar.h
+    fdmdv2_plot_scatter.h
+    fdmdv2_plot_spectrum.h
+    fdmdv2_plot_waterfall.h
+    hamlib.h
+    sox_biquad.h
+    sox/band.h
+    sox/biquad.c
+    sox/biquads.c
+    sox/biquad.h
+    sox/effects.c
+    sox/effects.h
+    sox/effects_i.c
+    sox/formats_i.c
+    sox/libsox.c
+    sox/sox.h
+    sox/sox_i.h
+    sox/soxomp.h
+    sox/util.h
+    sox/xmalloc.h
+    sox/xmalloc.c
+    topFrame.h
+    version.h
+)
+
+# WIN32 is needed for Windows GUI apps and is ignored for UNIX like systems.
+add_executable(freedv WIN32 ${FREEDV_SOURCES} ${RES_FILES})
+target_link_libraries(freedv ${FREEDV_LINK_LIBS})
+include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
+if(FREEDV_STATIC_DEPS)
+    add_dependencies(freedv ${FREEDV_STATIC_DEPS})
+endif(FREEDV_STATIC_DEPS)
+install(TARGETS freedv
+    RUNTIME DESTINATION bin)
+
+# Custom commands to build OSX images.
+if(APPLE)
+    add_custom_command(
+        TARGET freedv
+        POST_BUILD
+        COMMAND mkdir ARGS -p FreeDV.app/Contents/MacOS
+        COMMAND mkdir ARGS -p FreeDV.app/Contents/Resources/English.lproj
+        COMMAND cp ARGS ${CMAKE_CURRENT_SOURCE_DIR}/info.plist FreeDV.app/Contents
+        COMMAND cp ARGS ${CMAKE_CURRENT_SOURCE_DIR}/freedv.icns FreeDV.app/Contents/Resources
+        COMMAND echo ARGS -n "APPL????" > FreeDV.app/Contents/PkgInfo
+        COMMAND cp ARGS freedv FreeDV.app/Contents/MacOS/FreeDV
+        COMMAND dylibbundler ARGS -od -b -x FreeDV.app/Contents/MacOS/FreeDV -d FreeDV.app/Contents/libs -p @executable_path/../libs/
+        COMMAND mkdir dist_tmp
+        COMMAND cp -r FreeDV.app dist_tmp
+        COMMAND hdiutil create -srcfolder dist_tmp/ -volname FreeDV -format UDZO ./FreeDV.dmg
+        COMMAND rm -rf dist_tmp
+    )
+endif(APPLE)
diff --git a/src/Makefile.win32 b/src/Makefile.win32
new file mode 100644
index 0000000..932e851
--- /dev/null
+++ b/src/Makefile.win32
@@ -0,0 +1,52 @@
+# src/Makefile.win32
+# David Rowe 26 Oct 2012
+#
+# Makefile for Win32 on msys/Mingw to help David R get up to speed
+#
+# $ make -f Makefile.Win32
+
+CODEC2_PATH=$(HOME)/codec2-dev
+INCLUDE_PATH=/usr/local/include
+
+WX_CONFIG=wx-config
+WX_CPPFLAGS = $(shell $(WX_CONFIG) --cxxflags) -D__WXDEBUG__
+WX_LIBS = $(shell $(WX_CONFIG) --libs core, base, aui, adv, net)
+SVN_REVISION=$(shell svnversion)
+CODEC2_INC=$(CODEC2_PATH)/src 
+CODEC2_LIB=$(CODEC2_PATH)/build_win32/src/
+
+CPP_FLAGS = -D_NO_AUTOTOOLS_ -I$(INCLUDE_PATH) $(WX_CPPFLAGS) -I$(CODEC2_INC) -I../extern/include -I. -g -Wall -DSVN_REVISION=\"$(SVN_REVISION)\"
+LIBS = $(WX_LIBS) -L$(CODEC2_LIB) -lcodec2 -lm -lportaudiocpp -lportaudio -lpthread -lsndfile -lsamplerate -lhamlib -lsox -lspeexdsp
+
+OBJS = topFrame.o \
+fdmdv2_main.o \
+fdmdv2_plot.o \
+fdmdv2_plot_scalar.o \
+fdmdv2_plot_scatter.o \
+fdmdv2_plot_spectrum.o \
+fdmdv2_plot_waterfall.o \
+fdmdv2_pa_wrapper.o \
+dlg_audiooptions.o \
+dlg_ptt.o \
+dlg_options.o \
+dlg_filter.o \
+sox_biquad.o \
+hamlib.o \
+../../codec2-dev/src/golay23.o
+
+HDRS = version.h dlg_audiooptions.h dlg_ptt.h dlg_filter.h fdmdv2_main.h fdmdv2_defines.h fdmdv2_plot.h fdmdv2_plot_scalar.h fdmdv2_plot_waterfall.h fdmdv2_plot_scatter.h fdmdv2_plot_spectrum.h fdmdv2_pa_wrapper.h topFrame.h dlg_audiooptions.h topFrame.h varicode.h ../../codec2-dev/src/golay23.h hamlib.h
+
+all: freedv
+
+freedv: $(OBJS) 
+	g++ -o freedv $(OBJS) $(CPP_FLAGS) $(LIBS)
+
+%.o: %.cpp $(HDRS) Makefile.win32
+	g++ $(CPP_FLAGS) -c $< -o $@
+
+%.o: %.c $(HDRS) Makefile.win32
+	gcc $(CPP_FLAGS) -c $< -o $@
+
+clean:
+	rm -f *.o fdmdv2
+
diff --git a/src/afreedvplugin.c b/src/afreedvplugin.c
new file mode 100644
index 0000000..5fdc424
--- /dev/null
+++ b/src/afreedvplugin.c
@@ -0,0 +1,117 @@
+/*
+  afreedvplugin.c
+  David Rowe Feb 2016
+
+  Sample FreeDV plugin
+
+  TODO:
+     [ ] plugin to call back to functions
+     [ ] ability to list .so's/DLLs and scan
+     [ ] where do we put plugins?
+     [ ] Windows build and test environment
+
+  linux .so:
+    $ gcc -Wall -fPIC -c afreedvplugin.c
+    $ gcc -shared -Wl,-soname,afreedvplugin.so -o afreedvplugin.so afreedvplugin.o
+  win32 .dll:
+    $ i686-w64-mingw32-gcc -c afreedvplugin.c
+    $ i686-w64-mingw32-gcc -shared -o afreedvplugin.dll afreedvplugin.o -Wl,--out-implib,afreedvplugin_dll.a
+
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifdef _WIN32_
+#define DLL __declspec(dllexport)
+#else
+#define DLL
+#endif
+
+
+#ifdef LATER
+/* functions plugin can call - not sure how to link to these */
+
+int plugin_alert(char string[]);
+int plugin_get_persistant(char name[], char value[]);
+int plugin_set_persistant(char name[], char value[]);
+#endif
+static int (*plugin_get_persistant)(char name[], char value[]);
+
+struct APLUGIN_STATES {
+    int symbol_rate;
+    int num_tones;
+    int counter;
+};
+
+/* plugin functions called by host, we need to write these */
+
+void DLL plugin_name(char name[]) {
+
+    sprintf(name, "aFreeDVplugIn");
+}
+
+/* 
+   Text fields will be created for nparams, using the names
+   in *param_names[].  These fields we be saved to persistent
+   storage as name/param_names[0], name/param_names[1] ....
+*/
+
+void DLL *plugin_open(char *param_names[], 
+                      int *nparams, 
+                      int (*aplugin_get_persistant)(char *, char *))
+{
+    struct APLUGIN_STATES *states;
+
+    /* set up function ptrs */
+
+    plugin_get_persistant = aplugin_get_persistant;
+ 
+    /* tell host how many persistent parameters we have and their names */
+
+    strcpy(param_names[0], "SymbolRate");
+    strcpy(param_names[1], "NumTones");
+    *nparams = 2;
+
+    /* init local states */
+
+    states = (struct APLUGIN_STATES *)malloc(sizeof(struct APLUGIN_STATES));
+    if (states == NULL) {
+        // TODO: plugin_alert("Problem starting plugin!");
+        return NULL;
+    }
+    states->counter = 0;
+    
+    return (void*)states;
+}
+
+void DLL plugin_close(void *states) {
+    free(states);
+}
+
+void DLL plugin_start(void *s) {
+    struct APLUGIN_STATES *states = (struct APLUGIN_STATES*)s;
+    char txt[80];
+
+    fprintf(stderr, "\nplugin_start\n");
+
+    (plugin_get_persistant)("SymbolRate",txt);
+    states->symbol_rate = atoi(txt);
+
+    (plugin_get_persistant)("NumTones",txt);
+    states->num_tones = atoi(txt);
+    
+    fprintf(stderr, "symbol_rate: %d num_tones: %d\n", states->symbol_rate, states->num_tones);
+}
+
+void DLL plugin_stop(void *states) {
+    fprintf(stderr, "\nplugin_stop\n");
+}
+
+void DLL plugin_rx_samples(void *s, short samples[], int n) {
+    struct APLUGIN_STATES *states = (struct APLUGIN_STATES*)s;
+    //fprintf(stderr, "Got n=%d samples!\n", n);
+    //fprintf(stderr, "samples[0] = %d  samples[%d-1] = %d  counter = %d\n", samples[0], n, samples[n-1], states->counter++);
+}
+
diff --git a/src/comp.h b/src/comp.h
new file mode 100644
index 0000000..a3a1bd9
--- /dev/null
+++ b/src/comp.h
@@ -0,0 +1,39 @@
+/*---------------------------------------------------------------------------*\
+
+  FILE........: comp.h
+  AUTHOR......: David Rowe
+  DATE CREATED: 24/08/09
+
+  Complex number definition.
+
+\*---------------------------------------------------------------------------*/
+
+/*
+  Copyright (C) 2009 David Rowe
+
+  All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License version 2.1, as
+  published by the Free Software Foundation.  This program is
+  distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+  License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with this program; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __COMP__
+#define __COMP__
+
+/* Complex number */
+
+typedef struct
+{
+    float real;
+    float imag;
+} COMP;
+
+#endif
diff --git a/src/dlg_audiooptions.cpp b/src/dlg_audiooptions.cpp
new file mode 100644
index 0000000..4e8cd98
--- /dev/null
+++ b/src/dlg_audiooptions.cpp
@@ -0,0 +1,1264 @@
+//=========================================================================
+// Name:            AudioOptsDialog.cpp
+// Purpose:         Implements an Audio options selection dialog.
+//
+// Authors:         David Rowe, David Witten
+// License:
+//
+//  All rights reserved.
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//=========================================================================
+#include "fdmdv2_main.h"
+#include "dlg_audiooptions.h"
+
+// constants for test waveform plots
+
+#define TEST_WAVEFORM_X          180
+#define TEST_WAVEFORM_Y          180
+#define TEST_WAVEFORM_PLOT_TIME  2.0
+#define TEST_WAVEFORM_PLOT_FS    400
+#define TEST_BUF_SIZE           1024
+#define TEST_FS                 48000.0
+#define TEST_DT                 0.1      // time between plot updates in seconds
+#define TEST_WAVEFORM_PLOT_BUF  ((int)(DT*400))
+
+void AudioOptsDialog::Pa_Init(void)
+{
+    m_isPaInitialized = false;
+
+    if((pa_err = Pa_Initialize()) == paNoError)
+    {
+        m_isPaInitialized = true;
+    }
+    else
+    {
+        wxMessageBox(wxT("Port Audio failed to initialize"), wxT("Pa_Initialize"), wxOK);
+        return;
+    }
+}
+
+
+void AudioOptsDialog::buildTestControls(PlotScalar **plotScalar, wxButton **btnTest, 
+                                        wxPanel *parentPanel, wxBoxSizer *bSizer, wxString buttonLabel)
+{
+    wxBoxSizer* bSizer1 = new wxBoxSizer(wxVERTICAL);
+
+    wxPanel *panel = new wxPanel(parentPanel, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0);
+    *plotScalar = new PlotScalar((wxFrame*) panel, 1, TEST_WAVEFORM_PLOT_TIME, 1.0/TEST_WAVEFORM_PLOT_FS, -1, 1, 1, 0.2, "", 1);
+    (*plotScalar)->SetClientSize(wxSize(TEST_WAVEFORM_X,TEST_WAVEFORM_Y));
+    bSizer1->Add(panel, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 8);
+
+    *btnTest = new wxButton(parentPanel, wxID_ANY, buttonLabel, wxDefaultPosition, wxDefaultSize);
+    bSizer1->Add(*btnTest, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 0);
+
+    bSizer->Add(bSizer1, 0, wxALIGN_CENTER_HORIZONTAL |wxALIGN_CENTER_VERTICAL );
+}
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// AudioOptsDialog()
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+AudioOptsDialog::AudioOptsDialog(wxWindow* parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style) : wxDialog(parent, id, title, pos, size, style)
+{
+    //this->SetSizeHints(wxSize(850, 600), wxDefaultSize);
+    fprintf(stderr, "pos %d %d\n", pos.x, pos.y);
+    Pa_Init();
+
+    wxBoxSizer* mainSizer;
+    mainSizer = new wxBoxSizer(wxVERTICAL);
+    m_panel1 = new wxPanel(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+    wxBoxSizer* bSizer4;
+    bSizer4 = new wxBoxSizer(wxVERTICAL);
+    m_notebook1 = new wxNotebook(m_panel1, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxNB_BOTTOM);
+    m_panelRx = new wxPanel(m_notebook1, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+    wxBoxSizer* bSizer20;
+    bSizer20 = new wxBoxSizer(wxVERTICAL);
+    wxGridSizer* gSizer4;
+    gSizer4 = new wxGridSizer(2, 1, 0, 0);
+
+    // Rx In -----------------------------------------------------------------------
+
+    wxStaticBoxSizer* sbSizer2;
+    sbSizer2 = new wxStaticBoxSizer(new wxStaticBox(m_panelRx, wxID_ANY, _("From Radio")), wxHORIZONTAL);
+
+    wxBoxSizer* bSizer811a = new wxBoxSizer(wxVERTICAL);
+
+    m_listCtrlRxInDevices = new wxListCtrl(m_panelRx, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_HRULES|wxLC_REPORT|wxLC_VRULES);
+    bSizer811a->Add(m_listCtrlRxInDevices, 1, wxALL|wxEXPAND, 1);
+
+    wxBoxSizer* bSizer811;
+    bSizer811 = new wxBoxSizer(wxHORIZONTAL);
+    m_staticText51 = new wxStaticText(m_panelRx, wxID_ANY, _("Device:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText51->Wrap(-1);
+    bSizer811->Add(m_staticText51, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 5);
+    m_textCtrlRxIn = new wxTextCtrl(m_panelRx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    bSizer811->Add(m_textCtrlRxIn, 1, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    m_staticText6 = new wxStaticText(m_panelRx, wxID_ANY, _("Sample Rate:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText6->Wrap(-1);
+    bSizer811->Add(m_staticText6, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 5);
+    m_cbSampleRateRxIn = new wxComboBox(m_panelRx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(90,-1), 0, NULL, wxCB_DROPDOWN);
+    bSizer811->Add(m_cbSampleRateRxIn, 0, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+
+    bSizer811a->Add(bSizer811, 0, wxEXPAND, 5);
+
+    sbSizer2->Add(bSizer811a, 1, wxEXPAND, 2);
+    buildTestControls(&m_plotScalarRxIn, &m_btnRxInTest, m_panelRx, sbSizer2, _("Rec 2s"));
+
+    gSizer4->Add(sbSizer2, 1, wxEXPAND, 5);
+
+    // Rx Out -----------------------------------------------------------------------
+
+    wxStaticBoxSizer* sbSizer3;
+    sbSizer3 = new wxStaticBoxSizer(new wxStaticBox(m_panelRx, wxID_ANY, _("To Speaker/Headphones")), wxHORIZONTAL);
+
+    wxBoxSizer* bSizer81a = new wxBoxSizer(wxVERTICAL);
+
+    m_listCtrlRxOutDevices = new wxListCtrl(m_panelRx, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_HRULES|wxLC_REPORT|wxLC_VRULES);
+    bSizer81a->Add(m_listCtrlRxOutDevices, 1, wxALL|wxEXPAND, 1);
+
+    wxBoxSizer* bSizer81;
+    bSizer81 = new wxBoxSizer(wxHORIZONTAL);
+    m_staticText9 = new wxStaticText(m_panelRx, wxID_ANY, _("Device:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText9->Wrap(-1);
+    bSizer81->Add(m_staticText9, 0, wxALIGN_CENTER_VERTICAL|wxALL, 5);
+    m_textCtrlRxOut = new wxTextCtrl(m_panelRx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    bSizer81->Add(m_textCtrlRxOut, 1, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    m_staticText10 = new wxStaticText(m_panelRx, wxID_ANY, _("Sample Rate:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText10->Wrap(-1);
+    bSizer81->Add(m_staticText10, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 5);
+    m_cbSampleRateRxOut = new wxComboBox(m_panelRx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(90,-1), 0, NULL, wxCB_DROPDOWN);
+    bSizer81->Add(m_cbSampleRateRxOut, 0, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+
+    bSizer81a->Add(bSizer81, 0, wxEXPAND, 5);
+
+    sbSizer3->Add(bSizer81a, 1, wxEXPAND, 2);
+    buildTestControls(&m_plotScalarRxOut, &m_btnRxOutTest, m_panelRx, sbSizer3, _("Play 2s"));
+ 
+    gSizer4->Add(sbSizer3, 1, wxEXPAND, 2);
+    bSizer20->Add(gSizer4, 1, wxEXPAND, 1);
+    m_panelRx->SetSizer(bSizer20);
+    m_panelRx->Layout();
+    bSizer20->Fit(m_panelRx);
+    m_notebook1->AddPage(m_panelRx, _("Receive"), true);
+
+    // Tx Tab -------------------------------------------------------------------------------
+
+    m_panelTx = new wxPanel(m_notebook1, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+    wxBoxSizer* bSizer18;
+    bSizer18 = new wxBoxSizer(wxVERTICAL);
+    wxGridSizer* gSizer2;
+    gSizer2 = new wxGridSizer(2, 1, 0, 0);
+
+    // Tx In ----------------------------------------------------------------------------------
+
+    wxStaticBoxSizer* sbSizer22;
+    sbSizer22 = new wxStaticBoxSizer(new wxStaticBox(m_panelTx, wxID_ANY, _("From Microphone")), wxHORIZONTAL);
+
+    wxBoxSizer* bSizer83a = new wxBoxSizer(wxVERTICAL);
+
+    m_listCtrlTxInDevices = new wxListCtrl(m_panelTx, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_HRULES|wxLC_REPORT|wxLC_VRULES);
+    bSizer83a->Add(m_listCtrlTxInDevices, 1, wxALL|wxEXPAND, 1);
+    wxBoxSizer* bSizer83;
+    bSizer83 = new wxBoxSizer(wxHORIZONTAL);
+    m_staticText12 = new wxStaticText(m_panelTx, wxID_ANY, _("Device:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText12->Wrap(-1);
+    bSizer83->Add(m_staticText12, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 5);
+    m_textCtrlTxIn = new wxTextCtrl(m_panelTx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    bSizer83->Add(m_textCtrlTxIn, 1, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    m_staticText11 = new wxStaticText(m_panelTx, wxID_ANY, _("Sample Rate:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText11->Wrap(-1);
+    bSizer83->Add(m_staticText11, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 5);
+    m_cbSampleRateTxIn = new wxComboBox(m_panelTx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(90,-1), 0, NULL, wxCB_DROPDOWN);
+    bSizer83->Add(m_cbSampleRateTxIn, 0, wxALL, 1);
+
+    bSizer83a->Add(bSizer83, 0, wxEXPAND, 5);
+
+    sbSizer22->Add(bSizer83a, 1, wxEXPAND, 2);
+    buildTestControls(&m_plotScalarTxIn, &m_btnTxInTest, m_panelTx, sbSizer22, _("Rec 2s"));
+
+    gSizer2->Add(sbSizer22, 1, wxEXPAND, 5);
+
+    // Tx Out ----------------------------------------------------------------------------------
+
+    wxStaticBoxSizer* sbSizer21;
+    sbSizer21 = new wxStaticBoxSizer(new wxStaticBox(m_panelTx, wxID_ANY, _("To Radio")), wxHORIZONTAL);
+
+    wxBoxSizer* bSizer82a = new wxBoxSizer(wxVERTICAL);
+
+    m_listCtrlTxOutDevices = new wxListCtrl(m_panelTx, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxLC_HRULES|wxLC_REPORT|wxLC_VRULES);
+    bSizer82a->Add(m_listCtrlTxOutDevices, 1, wxALL|wxEXPAND, 2);
+    wxBoxSizer* bSizer82;
+    bSizer82 = new wxBoxSizer(wxHORIZONTAL);
+    m_staticText81 = new wxStaticText(m_panelTx, wxID_ANY, _("Device:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText81->Wrap(-1);
+    bSizer82->Add(m_staticText81, 0, wxALIGN_CENTER_VERTICAL|wxALL, 5);
+    m_textCtrlTxOut = new wxTextCtrl(m_panelTx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    bSizer82->Add(m_textCtrlTxOut, 1, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    m_staticText71 = new wxStaticText(m_panelTx, wxID_ANY, _("Sample Rate:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText71->Wrap(-1);
+    bSizer82->Add(m_staticText71, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 5);
+    m_cbSampleRateTxOut = new wxComboBox(m_panelTx, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(90,-1), 0, NULL, wxCB_DROPDOWN);
+    bSizer82->Add(m_cbSampleRateTxOut, 0, wxALL, 1);
+
+    bSizer82a->Add(bSizer82, 0, wxEXPAND, 5);
+
+    sbSizer21->Add(bSizer82a, 1, wxEXPAND, 2);
+    buildTestControls(&m_plotScalarTxOut, &m_btnTxOutTest, m_panelTx, sbSizer21, _("Play 2s"));
+
+    gSizer2->Add(sbSizer21, 1, wxEXPAND, 5);
+    bSizer18->Add(gSizer2, 1, wxEXPAND, 1);
+    m_panelTx->SetSizer(bSizer18);
+    m_panelTx->Layout();
+    bSizer18->Fit(m_panelTx);
+    m_notebook1->AddPage(m_panelTx, _("Transmit"), false);
+
+    // API Tab -------------------------------------------------------------------
+
+    m_panelAPI = new wxPanel(m_notebook1, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL);
+    wxBoxSizer* bSizer12;
+    bSizer12 = new wxBoxSizer(wxHORIZONTAL);
+    wxGridSizer* gSizer31;
+    gSizer31 = new wxGridSizer(2, 1, 0, 0);
+    wxStaticBoxSizer* sbSizer1;
+    sbSizer1 = new wxStaticBoxSizer(new wxStaticBox(m_panelAPI, wxID_ANY, _("PortAudio")), wxVERTICAL);
+
+    wxGridSizer* gSizer3;
+    gSizer3 = new wxGridSizer(4, 2, 0, 0);
+
+    m_staticText7 = new wxStaticText(m_panelAPI, wxID_ANY, _("PortAudio Version String:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText7->Wrap(-1);
+    gSizer3->Add(m_staticText7, 1, wxALIGN_RIGHT|wxALL|wxALIGN_CENTER_VERTICAL, 10);
+    m_textStringVer = new wxStaticText(m_panelAPI, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    gSizer3->Add(m_textStringVer, 1, wxALIGN_LEFT|wxALL|wxALIGN_CENTER_VERTICAL, 10);
+
+    m_staticText8 = new wxStaticText(m_panelAPI, wxID_ANY, _("PortAudio Int Version:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText8->Wrap(-1);
+    gSizer3->Add(m_staticText8, 1, wxALIGN_RIGHT|wxALL|wxALIGN_CENTER_VERTICAL, 10);
+    m_textIntVer = new wxStaticText(m_panelAPI, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(45,-1), 0);
+    gSizer3->Add(m_textIntVer, 1, wxALIGN_LEFT|wxALL|wxALIGN_CENTER_VERTICAL, 10);
+
+    m_staticText5 = new wxStaticText(m_panelAPI, wxID_ANY, _("Device Count:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText5->Wrap(-1);
+    gSizer3->Add(m_staticText5, 1, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 10);
+    m_textCDevCount = new wxStaticText(m_panelAPI, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(45,-1), 0);
+    gSizer3->Add(m_textCDevCount, 1, wxALIGN_LEFT|wxALL|wxALIGN_CENTER_VERTICAL, 10);
+
+    m_staticText4 = new wxStaticText(m_panelAPI, wxID_ANY, _("API Count:"), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText4->Wrap(-1);
+    gSizer3->Add(m_staticText4, 1, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 10);
+    m_textAPICount = new wxStaticText(m_panelAPI, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(45,-1), 0);
+    m_textAPICount->SetMaxSize(wxSize(45,-1));
+    gSizer3->Add(m_textAPICount, 1, wxALIGN_LEFT|wxALL|wxALIGN_CENTER_VERTICAL, 10);
+
+    sbSizer1->Add(gSizer3, 1, wxEXPAND, 2);
+    gSizer31->Add(sbSizer1, 1, wxEXPAND, 2);
+    wxStaticBoxSizer* sbSizer6;
+    sbSizer6 = new wxStaticBoxSizer(new wxStaticBox(m_panelAPI, wxID_ANY, _("Other")), wxVERTICAL);
+    gSizer31->Add(sbSizer6, 1, wxEXPAND, 5);
+    bSizer12->Add(gSizer31, 1, wxEXPAND, 5);
+    m_panelAPI->SetSizer(bSizer12);
+    m_panelAPI->Layout();
+    bSizer12->Fit(m_panelAPI);
+    m_notebook1->AddPage(m_panelAPI, _("API Info"), false);
+    bSizer4->Add(m_notebook1, 1, wxEXPAND | wxALL, 0);
+    m_panel1->SetSizer(bSizer4);
+    m_panel1->Layout();
+    bSizer4->Fit(m_panel1);
+    mainSizer->Add(m_panel1, 1, wxEXPAND | wxALL, 1);
+
+    wxBoxSizer* bSizer6;
+    bSizer6 = new wxBoxSizer(wxHORIZONTAL);
+    m_btnRefresh = new wxButton(this, wxID_ANY, _("Refresh"), wxDefaultPosition, wxDefaultSize, 0);
+    bSizer6->Add(m_btnRefresh, 0, wxALIGN_CENTER|wxALL, 2);
+
+    m_sdbSizer1 = new wxStdDialogButtonSizer();
+
+    m_sdbSizer1OK = new wxButton(this, wxID_OK);
+    m_sdbSizer1->AddButton(m_sdbSizer1OK);
+
+    m_sdbSizer1Cancel = new wxButton(this, wxID_CANCEL);
+    m_sdbSizer1->AddButton(m_sdbSizer1Cancel);
+
+    m_sdbSizer1Apply = new wxButton(this, wxID_APPLY);
+    m_sdbSizer1->AddButton(m_sdbSizer1Apply);
+
+    m_sdbSizer1->Realize();
+
+    bSizer6->Add(m_sdbSizer1, 1, wxALIGN_CENTER_VERTICAL, 2);
+    mainSizer->Add(bSizer6, 0, wxEXPAND, 2);
+    this->SetSizer(mainSizer);
+    this->Layout();
+    this->Centre(wxBOTH);
+//    this->Centre(wxBOTH);
+
+    m_notebook1->SetSelection(0);
+
+    showAPIInfo();
+    m_RxInDevices.m_listDevices   = m_listCtrlRxInDevices;
+    m_RxInDevices.direction       = AUDIO_IN;
+    m_RxInDevices.m_textDevice    = m_textCtrlRxIn;
+    m_RxInDevices.m_cbSampleRate  = m_cbSampleRateRxIn;
+
+    m_RxOutDevices.m_listDevices  = m_listCtrlRxOutDevices;
+    m_RxOutDevices.direction      = AUDIO_OUT;
+    m_RxOutDevices.m_textDevice   = m_textCtrlRxOut;
+    m_RxOutDevices.m_cbSampleRate = m_cbSampleRateRxOut;
+
+    m_TxInDevices.m_listDevices   = m_listCtrlTxInDevices;
+    m_TxInDevices.direction       = AUDIO_IN;
+    m_TxInDevices.m_textDevice    = m_textCtrlTxIn;
+    m_TxInDevices.m_cbSampleRate  = m_cbSampleRateTxIn;
+
+    m_TxOutDevices.m_listDevices  = m_listCtrlTxOutDevices;
+    m_TxOutDevices.direction      = AUDIO_OUT;
+    m_TxOutDevices.m_textDevice   = m_textCtrlTxOut;
+    m_TxOutDevices.m_cbSampleRate = m_cbSampleRateTxOut;
+
+    populateParams(m_RxInDevices);
+    populateParams(m_RxOutDevices);
+    populateParams(m_TxInDevices);
+    populateParams(m_TxOutDevices);
+
+    m_listCtrlRxInDevices->Connect( wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler( AudioOptsDialog::OnRxInDeviceSelect ), NULL, this );
+    m_listCtrlRxOutDevices->Connect( wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler( AudioOptsDialog::OnRxOutDeviceSelect ), NULL, this );
+    m_listCtrlTxInDevices->Connect( wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler( AudioOptsDialog::OnTxInDeviceSelect ), NULL, this );
+    m_listCtrlTxOutDevices->Connect( wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler( AudioOptsDialog::OnTxOutDeviceSelect ), NULL, this );
+
+    // wire up test buttons
+    m_btnRxInTest->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnRxInTest ), NULL, this );
+    m_btnRxOutTest->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnRxOutTest ), NULL, this );
+    m_btnTxInTest->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnTxInTest ), NULL, this );
+    m_btnTxOutTest->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnTxOutTest ), NULL, this );
+
+    m_btnRefresh->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnRefreshClick ), NULL, this );
+    m_sdbSizer1Apply->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnApplyAudioParameters ), NULL, this );
+    m_sdbSizer1Cancel->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnCancelAudioParameters ), NULL, this );
+    m_sdbSizer1OK->Connect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnOkAudioParameters ), NULL, this );
+/*
+        void OnClose( wxCloseEvent& event ) { event.Skip(); }
+        void OnHibernate( wxActivateEvent& event ) { event.Skip(); }
+        void OnIconize( wxIconizeEvent& event ) { event.Skip(); }
+        void OnInitDialog( wxInitDialogEvent& event ) { event.Skip(); }
+*/
+//    this->Connect(wxEVT_CLOSE_WINDOW, wxCloseEventHandler(AudioOptsDialog::OnClose));
+    this->Connect(wxEVT_HIBERNATE, wxActivateEventHandler(AudioOptsDialog::OnHibernate));
+    this->Connect(wxEVT_ICONIZE, wxIconizeEventHandler(AudioOptsDialog::OnIconize));
+    this->Connect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(AudioOptsDialog::OnInitDialog));
+}
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// ~AudioOptsDialog()
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+AudioOptsDialog::~AudioOptsDialog()
+{
+    Pa_Terminate();
+
+    // Disconnect Events
+    this->Disconnect(wxEVT_HIBERNATE, wxActivateEventHandler(AudioOptsDialog::OnHibernate));
+    this->Disconnect(wxEVT_ICONIZE, wxIconizeEventHandler(AudioOptsDialog::OnIconize));
+    this->Disconnect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(AudioOptsDialog::OnInitDialog));
+
+    m_listCtrlRxInDevices->Disconnect(wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler(AudioOptsDialog::OnRxInDeviceSelect), NULL, this);
+    m_listCtrlRxOutDevices->Disconnect(wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler(AudioOptsDialog::OnRxOutDeviceSelect), NULL, this);
+    m_listCtrlTxInDevices->Disconnect(wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler(AudioOptsDialog::OnTxInDeviceSelect), NULL, this);
+    m_listCtrlTxOutDevices->Disconnect(wxEVT_COMMAND_LIST_ITEM_SELECTED, wxListEventHandler(AudioOptsDialog::OnTxOutDeviceSelect), NULL, this);
+
+    m_btnRxInTest->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnRxInTest ), NULL, this );
+    m_btnRxOutTest->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnRxOutTest ), NULL, this );
+    m_btnTxInTest->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnTxInTest ), NULL, this );
+    m_btnTxOutTest->Disconnect( wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler( AudioOptsDialog::OnTxOutTest ), NULL, this );
+
+    m_btnRefresh->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(AudioOptsDialog::OnRefreshClick), NULL, this);
+    m_sdbSizer1Apply->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(AudioOptsDialog::OnApplyAudioParameters), NULL, this);
+    m_sdbSizer1Cancel->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(AudioOptsDialog::OnCancelAudioParameters), NULL, this);
+    m_sdbSizer1OK->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(AudioOptsDialog::OnOkAudioParameters), NULL, this);
+
+}
+
+//-------------------------------------------------------------------------
+// OnInitDialog()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnInitDialog( wxInitDialogEvent& event )
+{
+    ExchangeData(EXCHANGE_DATA_IN);
+}
+
+//-------------------------------------------------------------------------
+// OnInitDialog()
+//
+// helper function to look up name of devNum, and if it exists write
+// name to textCtrl.  Used to trap dissapearing devices.
+//-------------------------------------------------------------------------
+int AudioOptsDialog::setTextCtrlIfDevNumValid(wxTextCtrl *textCtrl, wxListCtrl *listCtrl, int devNum)
+{
+    int i, aDevNum, found_devNum;
+
+    // ignore last list entry as it is the "none" entry
+
+    found_devNum = 0;
+    for(i=0; i<listCtrl->GetItemCount()-1; i++) {
+        aDevNum = wxAtoi(listCtrl->GetItemText(i, 1));
+        //printf("aDevNum: %d devNum: %d\n", aDevNum, devNum);
+        if (aDevNum == devNum) {
+            found_devNum = 1;
+            textCtrl->SetValue(listCtrl->GetItemText(i, 0) + " (" + wxString::Format(wxT("%i"),devNum) + ")");
+            printf("setting focus of %d\n", i);
+            listCtrl->SetItemState(i, wxLIST_STATE_FOCUSED, wxLIST_STATE_FOCUSED);
+        }
+    }
+
+    if (found_devNum) 
+        return devNum;
+    else {
+        textCtrl->SetValue("none");
+        return -1;
+    }
+}
+
+//-------------------------------------------------------------------------
+// ExchangeData()
+//-------------------------------------------------------------------------
+int AudioOptsDialog::ExchangeData(int inout)
+{
+    if(inout == EXCHANGE_DATA_IN)
+    {
+        // Map sound card device numbers to tx/rx device numbers depending
+        // on number of sound cards in use
+
+        printf("EXCHANGE_DATA_IN:\n");
+        printf("  g_nSoundCards: %d\n", g_nSoundCards);
+        printf("  g_soundCard1InDeviceNum: %d\n", g_soundCard1InDeviceNum);
+        printf("  g_soundCard1OutDeviceNum: %d\n", g_soundCard1OutDeviceNum);
+        printf("  g_soundCard1SampleRate: %d\n", g_soundCard1SampleRate);
+        printf("  g_soundCard2InDeviceNum: %d\n", g_soundCard2InDeviceNum);
+        printf("  g_soundCard2OutDeviceNum: %d\n", g_soundCard2OutDeviceNum);
+        printf("  g_soundCard2SampleRate: %d\n", g_soundCard2SampleRate);
+
+        if (g_nSoundCards == 0) {
+            m_textCtrlRxIn ->SetValue("none"); rxInAudioDeviceNum  = -1;
+            m_textCtrlRxOut->SetValue("none"); rxOutAudioDeviceNum = -1;
+            m_textCtrlTxIn ->SetValue("none"); txInAudioDeviceNum  = -1;
+            m_textCtrlTxOut->SetValue("none"); txOutAudioDeviceNum = -1;           
+        }
+
+        if (g_nSoundCards == 1) {
+            rxInAudioDeviceNum  = setTextCtrlIfDevNumValid(m_textCtrlRxIn, 
+                                                           m_listCtrlRxInDevices, 
+                                                           g_soundCard1InDeviceNum);
+
+            rxOutAudioDeviceNum = setTextCtrlIfDevNumValid(m_textCtrlRxOut, 
+                                                           m_listCtrlRxOutDevices, 
+                                                           g_soundCard1OutDeviceNum);
+
+            if ((rxInAudioDeviceNum != -1) && (rxInAudioDeviceNum != -1)) {
+                m_cbSampleRateRxIn->SetValue(wxString::Format(wxT("%i"),g_soundCard1SampleRate));
+                m_cbSampleRateRxOut->SetValue(wxString::Format(wxT("%i"),g_soundCard1SampleRate));
+            }
+
+            m_textCtrlTxIn ->SetValue("none"); txInAudioDeviceNum  = -1;
+            m_textCtrlTxOut->SetValue("none"); txOutAudioDeviceNum = -1;           
+        }
+
+        if (g_nSoundCards == 2) {
+ 
+            rxInAudioDeviceNum  = setTextCtrlIfDevNumValid(m_textCtrlRxIn, 
+                                                           m_listCtrlRxInDevices, 
+                                                           g_soundCard1InDeviceNum);
+
+            rxOutAudioDeviceNum = setTextCtrlIfDevNumValid(m_textCtrlRxOut, 
+                                                           m_listCtrlRxOutDevices, 
+                                                           g_soundCard2OutDeviceNum);
+
+            txInAudioDeviceNum  = setTextCtrlIfDevNumValid(m_textCtrlTxIn, 
+                                                           m_listCtrlTxInDevices, 
+                                                           g_soundCard2InDeviceNum);
+
+            txOutAudioDeviceNum = setTextCtrlIfDevNumValid(m_textCtrlTxOut, 
+                                                           m_listCtrlTxOutDevices, 
+                                                           g_soundCard1OutDeviceNum);
+
+            if ((rxInAudioDeviceNum != -1) && (txOutAudioDeviceNum != -1)) {
+                m_cbSampleRateRxIn->SetValue(wxString::Format(wxT("%i"),g_soundCard1SampleRate));
+                m_cbSampleRateTxOut->SetValue(wxString::Format(wxT("%i"),g_soundCard1SampleRate));
+            }
+
+            if ((txInAudioDeviceNum != -1) && (rxOutAudioDeviceNum != -1)) {
+                m_cbSampleRateTxIn->SetValue(wxString::Format(wxT("%i"),g_soundCard2SampleRate));
+                m_cbSampleRateRxOut->SetValue(wxString::Format(wxT("%i"),g_soundCard2SampleRate));
+            }
+        }
+        printf("  rxInAudioDeviceNum: %d\n  rxOutAudioDeviceNum: %d\n  txInAudioDeviceNum: %d\n  txOutAudioDeviceNum: %d\n",
+               rxInAudioDeviceNum, rxOutAudioDeviceNum, txInAudioDeviceNum, txOutAudioDeviceNum);
+    }
+
+    if(inout == EXCHANGE_DATA_OUT)
+    {
+        int valid_one_card_config = 0;
+        int valid_two_card_config = 0;
+        wxString sampleRate1, sampleRate2;
+
+        printf("EXCHANGE_DATA_OUT:\n");
+        printf("  rxInAudioDeviceNum: %d\n  rxOutAudioDeviceNum: %d\n  txInAudioDeviceNum: %d\n  txOutAudioDeviceNum: %d\n",
+               rxInAudioDeviceNum, rxOutAudioDeviceNum, txInAudioDeviceNum, txOutAudioDeviceNum);
+
+        // ---------------------------------------------------------------
+        // check we have a valid 1 or 2 sound card configuration
+        // ---------------------------------------------------------------
+
+        // one sound card config, tx device numbers should be set to -1 
+
+        if ((rxInAudioDeviceNum != -1) && (rxOutAudioDeviceNum != -1) &&
+            (txInAudioDeviceNum == -1) && (txOutAudioDeviceNum == -1)) {
+ 
+            valid_one_card_config = 1; 
+
+            // in and out sample rate must be the same, as there is one callback
+            
+            sampleRate1 = m_cbSampleRateRxIn->GetValue();
+            if (!sampleRate1.IsSameAs(m_cbSampleRateRxOut->GetValue())) {
+                wxMessageBox(wxT("With a single sound card the Sample Rate of "
+                                 "From Radio and To Speaker/Headphones must be the same."), wxT(""), wxOK);
+                return -1;
+            }
+        }
+
+        // two card configuration
+
+        if ((rxInAudioDeviceNum != -1) && (rxOutAudioDeviceNum != -1) &&
+            (txInAudioDeviceNum != -1) && (txOutAudioDeviceNum != -1)) {
+
+            valid_two_card_config = 1; 
+
+            // Check we haven't doubled up on sound devices
+
+            if (rxInAudioDeviceNum == txInAudioDeviceNum) {
+                wxMessageBox(wxT("You must use different devices for From Radio and From Microphone"), wxT(""), wxOK);
+                return -1;
+            }
+
+            if (rxOutAudioDeviceNum == txOutAudioDeviceNum) {
+                wxMessageBox(wxT("You must use different devices for To Radio and To Speaker/Headphones"), wxT(""), wxOK);
+                return -1;
+            }
+
+            // Check sample rates for callback 1 devices are the same,
+            // as input and output are handled synchronously by one
+            // portaudio callback
+            
+            sampleRate1 = m_cbSampleRateRxIn->GetValue();
+            if (!sampleRate1.IsSameAs(m_cbSampleRateTxOut->GetValue())) {
+                wxMessageBox(wxT("With two sound cards the Sample Rate "
+                                 "of From Radio and To Radio must be the same."), wxT(""), wxOK);
+                return -1;
+            }
+ 
+            // check sample rate for callback 2 devices is the same
+
+            sampleRate2 = m_cbSampleRateTxIn->GetValue();
+            if (!sampleRate2.IsSameAs(m_cbSampleRateRxOut->GetValue())) {
+                wxMessageBox(wxT("With two sound cards the Sample Rate of "
+                                 "From Microphone and To Speaker/Headphones must be the same."), wxT(""), wxOK);
+                return -1;
+            }
+ 
+        }
+
+        printf("  valid_one_card_config: %d  valid_two_card_config: %d\n", valid_one_card_config, valid_two_card_config);
+
+        if (!valid_one_card_config && !valid_two_card_config) {
+            wxMessageBox(wxT("Invalid one or two sound card configuration"), wxT(""), wxOK);
+            return -1;
+        }
+
+        // ---------------------------------------------------------------
+        // Map Rx/TX device numbers to sound card device numbers used
+        // in callbacks. Portaudio uses one callback per sound card so
+        // we have to be soundcard oriented at run time rather than
+        // Tx/Rx oriented as in this dialog.
+        // ---------------------------------------------------------------
+        g_nSoundCards = 0;
+        g_soundCard1InDeviceNum = g_soundCard1OutDeviceNum = g_soundCard2InDeviceNum = g_soundCard2OutDeviceNum = -1;
+
+        if (valid_one_card_config) {
+
+            // Only callback 1 used
+
+            g_nSoundCards = 1;
+            g_soundCard1InDeviceNum  = rxInAudioDeviceNum;
+            g_soundCard1OutDeviceNum = rxOutAudioDeviceNum;
+            g_soundCard1SampleRate = wxAtoi(sampleRate1);
+        }
+
+        if (valid_two_card_config) {
+            g_nSoundCards = 2;
+            g_soundCard1InDeviceNum  = rxInAudioDeviceNum;
+            g_soundCard1OutDeviceNum = txOutAudioDeviceNum;
+            g_soundCard1SampleRate   = wxAtoi(sampleRate1);
+            g_soundCard2InDeviceNum  = txInAudioDeviceNum;
+            g_soundCard2OutDeviceNum = rxOutAudioDeviceNum;
+            g_soundCard2SampleRate   = wxAtoi(sampleRate2);
+        }
+
+        printf("  g_nSoundCards: %d\n", g_nSoundCards);
+        printf("  g_soundCard1InDeviceNum: %d\n", g_soundCard1InDeviceNum);
+        printf("  g_soundCard1OutDeviceNum: %d\n", g_soundCard1OutDeviceNum);
+        printf("  g_soundCard1SampleRate: %d\n", g_soundCard1SampleRate);
+        printf("  g_soundCard2InDeviceNum: %d\n", g_soundCard2InDeviceNum);
+        printf("  g_soundCard2OutDeviceNum: %d\n", g_soundCard2OutDeviceNum);
+        printf("  g_soundCard2SampleRate: %d\n", g_soundCard2SampleRate);
+
+        wxConfigBase *pConfig = wxConfigBase::Get();
+        pConfig->Write(wxT("/Audio/soundCard1InDeviceNum"),       g_soundCard1InDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard1OutDeviceNum"),      g_soundCard1OutDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard1SampleRate"),        g_soundCard1SampleRate );
+
+        pConfig->Write(wxT("/Audio/soundCard2InDeviceNum"),       g_soundCard2InDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard2OutDeviceNum"),      g_soundCard2OutDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard2SampleRate"),        g_soundCard2SampleRate );
+
+        pConfig->Flush();
+        delete wxConfigBase::Set((wxConfigBase *) NULL);
+    }
+
+    return 0;
+}
+
+//-------------------------------------------------------------------------
+// buildListOfSupportedSampleRates()
+//-------------------------------------------------------------------------
+int AudioOptsDialog:: buildListOfSupportedSampleRates(wxComboBox *cbSampleRate, int devNum, int in_out)
+{
+    // every sound device has a different list of supported sample rates, so
+    // we work out which ones are supported and populate the list ctrl
+
+    static double standardSampleRates[] =
+    {
+        8000.0,     9600.0,
+        11025.0,    12000.0,
+        16000.0,    22050.0,
+        24000.0,    32000.0,
+        44100.0,    48000.0,
+        88200.0,    96000.0,
+        192000.0,   -1          // negative terminated  list
+    };
+
+    const PaDeviceInfo  *deviceInfo;
+    PaStreamParameters   inputParameters, outputParameters;
+    PaError              err;
+    wxString             str;
+    int                  i, numSampleRates;
+
+    deviceInfo = Pa_GetDeviceInfo(devNum);
+    if (deviceInfo == NULL) {
+        printf("Pa_GetDeviceInfo(%d) failed!\n", devNum);
+        cbSampleRate->Clear();
+        return 0;
+    }
+
+    inputParameters.device = devNum;
+    inputParameters.channelCount = deviceInfo->maxInputChannels;
+    inputParameters.sampleFormat = paInt16;
+    inputParameters.suggestedLatency = 0;
+    inputParameters.hostApiSpecificStreamInfo = NULL;
+        
+    outputParameters.device = devNum;
+    outputParameters.channelCount = deviceInfo->maxOutputChannels;
+    outputParameters.sampleFormat = paInt16;
+    outputParameters.suggestedLatency = 0;
+    outputParameters.hostApiSpecificStreamInfo = NULL;
+    
+    cbSampleRate->Clear();
+    //printf("devNum %d supports: ", devNum);
+    numSampleRates = 0;
+    for(i = 0; standardSampleRates[i] > 0; i++)
+    {      
+        if (in_out == AUDIO_IN)
+            err = Pa_IsFormatSupported(&inputParameters, NULL, standardSampleRates[i]);
+        else
+            err = Pa_IsFormatSupported(NULL, &outputParameters, standardSampleRates[i]);
+
+        if( err == paFormatIsSupported ) {
+            str.Printf("%i", (int)standardSampleRates[i]);
+            cbSampleRate->AppendString(str);
+            printf("%i ", (int)standardSampleRates[i]);
+            numSampleRates++;
+        }
+    }
+    printf("\n");
+
+    return numSampleRates;
+}
+
+//-------------------------------------------------------------------------
+// showAPIInfo()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::showAPIInfo()
+{
+    wxString    strval;
+    int         apiVersion;
+    int         apiCount        = 0;
+    int         numDevices      = 0;
+
+    strval = Pa_GetVersionText();
+    m_textStringVer->SetLabel(strval);
+
+    apiVersion = Pa_GetVersion();
+    strval.Printf(wxT("%d"), apiVersion);
+    m_textIntVer->SetLabel(strval);
+
+    apiCount = Pa_GetHostApiCount();
+    strval.Printf(wxT("%d"), apiCount);
+    m_textAPICount->SetLabel(strval);
+
+    numDevices = Pa_GetDeviceCount();
+    strval.Printf(wxT("%d"), numDevices);
+    m_textCDevCount->SetLabel(strval);
+}
+
+//-------------------------------------------------------------------------
+// populateParams()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::populateParams(AudioInfoDisplay ai)
+{
+    const       PaDeviceInfo *deviceInfo = NULL;
+    wxListCtrl* ctrl    = ai.m_listDevices;
+    int         in_out  = ai.direction;
+    long        idx;
+    int         numDevices;
+    wxListItem  listItem;
+    wxString    buf;
+    int         devn;
+    int         col = 0;
+
+    numDevices = Pa_GetDeviceCount();
+
+    if(ctrl->GetColumnCount() > 0)
+    {
+        ctrl->ClearAll();
+    }
+
+    listItem.SetAlign(wxLIST_FORMAT_LEFT);
+    listItem.SetText(wxT("Device"));
+    idx = ctrl->InsertColumn(col, listItem);
+    ctrl->SetColumnWidth(col++, 300);
+
+    listItem.SetAlign(wxLIST_FORMAT_CENTRE);
+    listItem.SetText(wxT("ID"));
+    idx = ctrl->InsertColumn(col, listItem);
+    ctrl->SetColumnWidth(col++, 45);
+
+    listItem.SetAlign(wxLIST_FORMAT_LEFT);
+    listItem.SetText(wxT("API"));
+    idx = ctrl->InsertColumn(col, listItem);
+    ctrl->SetColumnWidth(col++, 100);
+
+    if(in_out == AUDIO_IN)
+    {
+        listItem.SetAlign(wxLIST_FORMAT_CENTRE);
+        listItem.SetText(wxT("Default Sample Rate"));
+        idx = ctrl->InsertColumn(col, listItem);
+        ctrl->SetColumnWidth(col++, 160);
+    }
+    else if(in_out == AUDIO_OUT)
+    {
+        listItem.SetAlign(wxLIST_FORMAT_CENTRE);
+        listItem.SetText(wxT("Default Sample Rate"));
+        idx = ctrl->InsertColumn(col, listItem);
+        ctrl->SetColumnWidth(col++, 160);
+    }
+
+    #ifdef LATENCY
+    listItem.SetAlign(wxLIST_FORMAT_CENTRE);
+    listItem.SetText(wxT("Min Latency"));
+    ctrl->InsertColumn(col, listItem);
+    ctrl->SetColumnWidth(col++, 100);
+
+    listItem.SetAlign(wxLIST_FORMAT_CENTRE);
+    listItem.SetText(wxT("Max Latency"));
+    ctrl->InsertColumn(col, listItem);
+    ctrl->SetColumnWidth(col++, 100);
+    #endif
+
+    for(devn = 0; devn < numDevices; devn++)
+    {
+        buf.Printf(wxT(""));
+        deviceInfo = Pa_GetDeviceInfo(devn);
+        if( ((in_out == AUDIO_IN) && (deviceInfo->maxInputChannels > 0)) ||
+            ((in_out == AUDIO_OUT) && (deviceInfo->maxOutputChannels > 0)))
+        {
+            col = 0;
+            buf.Printf(wxT("%s"), deviceInfo->name);
+            idx = ctrl->InsertItem(ctrl->GetItemCount(), buf);
+            col++;
+                
+            buf.Printf(wxT("%d"), devn);
+            ctrl->SetItem(idx, col++, buf);
+
+            buf.Printf(wxT("%s"), Pa_GetHostApiInfo(deviceInfo->hostApi)->name);
+            ctrl->SetItem(idx, col++, buf);
+
+            buf.Printf(wxT("%i"), (int)deviceInfo->defaultSampleRate);
+            ctrl->SetItem(idx, col++, buf);
+
+            #ifdef LATENCY
+            if (in_out == AUDIO_IN)
+                buf.Printf(wxT("%8.4f"), deviceInfo->defaultLowInputLatency);
+            else
+                buf.Printf(wxT("%8.4f"), deviceInfo->defaultLowOutputLatency);               
+            ctrl->SetItem(idx, col++, buf);
+
+            if (in_out == AUDIO_IN)
+                buf.Printf(wxT("%8.4f"), deviceInfo->defaultHighInputLatency);
+            else
+                 buf.Printf(wxT("%8.4f"), deviceInfo->defaultHighOutputLatency);             
+            ctrl->SetItem(idx, col++, buf);
+            #endif
+        }        
+    }
+
+    // add "none" option at end
+
+    buf.Printf(wxT("%s"), "none");
+    idx = ctrl->InsertItem(ctrl->GetItemCount(), buf);
+}
+
+//-------------------------------------------------------------------------
+// OnDeviceSelect()
+//
+// helper function to set up "Device:" and "Sample Rate:" fields when
+// we click on a line in the list of devices box
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnDeviceSelect(wxComboBox *cbSampleRate, 
+                                     wxTextCtrl *textCtrl, 
+                                     int        *devNum, 
+                                     wxListCtrl *listCtrlDevices, 
+                                     int         index,
+                                     int         in_out)
+{
+
+    wxString devName = listCtrlDevices->GetItemText(index, 0);
+     if (devName.IsSameAs("none")) {
+        *devNum = -1;
+        textCtrl->SetValue("none");
+    }
+    else {
+        *devNum = wxAtoi(listCtrlDevices->GetItemText(index, 1));
+        textCtrl->SetValue(devName + " (" + wxString::Format(wxT("%i"),*devNum) + ")");
+
+        int numSampleRates = buildListOfSupportedSampleRates(cbSampleRate, *devNum, in_out);
+        if (numSampleRates) {
+            wxString defSampleRate = listCtrlDevices->GetItemText(index, 3);        
+            cbSampleRate->SetValue(defSampleRate);
+        }
+        else {
+             cbSampleRate->SetValue("None");           
+        }
+    }
+}
+
+//-------------------------------------------------------------------------
+// OnRxInDeviceSelect()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnRxInDeviceSelect(wxListEvent& evt)
+{
+    OnDeviceSelect(m_cbSampleRateRxIn, 
+                   m_textCtrlRxIn, 
+                   &rxInAudioDeviceNum, 
+                   m_listCtrlRxInDevices, 
+                   evt.GetIndex(),
+                   AUDIO_IN);
+}
+
+//-------------------------------------------------------------------------
+// OnRxOutDeviceSelect()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnRxOutDeviceSelect(wxListEvent& evt)
+{
+    OnDeviceSelect(m_cbSampleRateRxOut, 
+                   m_textCtrlRxOut, 
+                   &rxOutAudioDeviceNum, 
+                   m_listCtrlRxOutDevices, 
+                   evt.GetIndex(),
+                   AUDIO_OUT);
+}
+
+//-------------------------------------------------------------------------
+// OnTxInDeviceSelect()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnTxInDeviceSelect(wxListEvent& evt)
+{
+    OnDeviceSelect(m_cbSampleRateTxIn, 
+                   m_textCtrlTxIn, 
+                   &txInAudioDeviceNum, 
+                   m_listCtrlTxInDevices, 
+                   evt.GetIndex(),
+                   AUDIO_IN);
+}
+
+//-------------------------------------------------------------------------
+// OnTxOutDeviceSelect()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnTxOutDeviceSelect(wxListEvent& evt)
+{
+    OnDeviceSelect(m_cbSampleRateTxOut, 
+                   m_textCtrlTxOut, 
+                   &txOutAudioDeviceNum, 
+                   m_listCtrlTxOutDevices, 
+                   evt.GetIndex(),
+                   AUDIO_OUT);
+}
+
+//-------------------------------------------------------------------------
+// plotDeviceInputForAFewSecs()
+//
+// opens a record device and plots the input speech for a few seconds.  This is "modal" using
+// synchronous portaudio functions, so the GUI will not respond until after test sample has been
+// taken
+//-------------------------------------------------------------------------
+void AudioOptsDialog::plotDeviceInputForAFewSecs(int devNum, PlotScalar *plotScalar) {
+    PaStreamParameters  inputParameters;
+    const PaDeviceInfo *deviceInfo = NULL;
+    PaStream           *stream = NULL;
+    PaError             err;
+    short               in48k_stereo_short[2*TEST_BUF_SIZE];
+    short               in48k_short[TEST_BUF_SIZE];
+    short               in8k_short[TEST_BUF_SIZE];
+    int                 numDevices, nBufs, i, j, src_error,inputChannels;
+    float               t;
+    SRC_STATE          *src;
+    FIFO               *fifo;
+
+    // a basic sanity check
+    numDevices = Pa_GetDeviceCount();
+    if (devNum >= numDevices)
+        return;
+    if (devNum < 0)
+        return;
+    printf("devNum %d\n", devNum);
+
+    fifo = fifo_create((int)(DT*TEST_WAVEFORM_PLOT_FS*2)); assert(fifo != NULL);
+    src = src_new(SRC_SINC_FASTEST, 1, &src_error); assert(src != NULL);
+
+    // work out how many input channels this device supports.
+
+    deviceInfo = Pa_GetDeviceInfo(devNum);
+    if (deviceInfo == NULL) {
+        wxMessageBox(wxT("Couldn't get device info from Port Audio for Sound Card "), wxT("Error"), wxOK);
+        return;
+    }
+    if (deviceInfo->maxInputChannels == 1)
+        inputChannels = 1;
+    else
+        inputChannels = 2;
+
+    // open device
+
+    inputParameters.device = devNum;
+    inputParameters.channelCount = inputChannels;
+    inputParameters.sampleFormat = paInt16;
+    inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultHighInputLatency;
+    inputParameters.hostApiSpecificStreamInfo = NULL;
+
+    nBufs = TEST_WAVEFORM_PLOT_TIME*TEST_FS/TEST_BUF_SIZE;
+    printf("inputChannels: %d nBufs %d\n", inputChannels, nBufs);
+
+    err = Pa_OpenStream(
+              &stream,
+              &inputParameters,
+              NULL,
+              TEST_FS,
+              TEST_BUF_SIZE,
+              paClipOff,    
+              NULL,       // no callback, use blocking API
+              NULL ); 
+    if (err != paNoError) {
+        wxMessageBox(wxT("Couldn't initialise sound device."), wxT("Error"), wxOK);       
+        return;
+    }
+
+    err = Pa_StartStream(stream);
+    if (err != paNoError) {
+        wxMessageBox(wxT("Couldn't start sound device."), wxT("Error"), wxOK);       
+        return;
+    }
+
+    for(i=0, t=0.0; i<nBufs; i++, t+=(float)TEST_BUF_SIZE/TEST_FS) {
+        Pa_ReadStream(stream, in48k_stereo_short, TEST_BUF_SIZE);
+        if (inputChannels == 2) {
+            for(j=0; j<TEST_BUF_SIZE; j++)
+                in48k_short[j] = in48k_stereo_short[2*j]; // left channel only
+        }
+        else {
+            for(j=0; j<TEST_BUF_SIZE; j++)
+                in48k_short[j] = in48k_stereo_short[j]; 
+        }
+        int n8k = resample(src, in8k_short, in48k_short, 8000, TEST_FS, TEST_BUF_SIZE, TEST_BUF_SIZE);
+        resample_for_plot(fifo, in8k_short, n8k, FS);
+
+        // every TEST_DT seconds update plot, unfortunately plot
+        // doesnt get updated to end as we are blocking events in this
+        // function
+
+        if (t > TEST_DT) {
+            t -= TEST_DT;
+            short plotSamples[TEST_WAVEFORM_PLOT_BUF];
+            if (fifo_read(fifo, plotSamples, TEST_WAVEFORM_PLOT_BUF))
+                memset(plotSamples, 0, TEST_WAVEFORM_PLOT_BUF*sizeof(short));
+            plotScalar->add_new_short_samples(0, plotSamples, TEST_WAVEFORM_PLOT_BUF, 32767);
+            plotScalar->Refresh();
+       }
+    }
+   
+    err = Pa_StopStream(stream);
+    if (err != paNoError) {
+        wxMessageBox(wxT("Couldn't stop sound device."), wxT("Error"), wxOK);       
+        return;
+    }
+    Pa_CloseStream(stream);
+
+    fifo_destroy(fifo);
+    src_delete(src);
+}
+
+//-------------------------------------------------------------------------
+// plotDeviceOutputForAFewSecs()
+//
+// opens a play device and plays a tone for a few seconds.  This is "modal" using
+// synchronous portaudio functions, so the GUI will not respond until after test sample has been
+// taken.  Also plots a pretty picture like the record versions
+//-------------------------------------------------------------------------
+void AudioOptsDialog::plotDeviceOutputForAFewSecs(int devNum, PlotScalar *plotScalar) {
+    PaStreamParameters  outputParameters;
+    const PaDeviceInfo *deviceInfo = NULL;
+    PaStream           *stream = NULL;
+    PaError             err;
+    short               out48k_stereo_short[2*TEST_BUF_SIZE];
+    short               out48k_short[TEST_BUF_SIZE];
+    short               out8k_short[TEST_BUF_SIZE];
+    int                 numDevices, nBufs, i, j, src_error, n, outputChannels;
+    float               t;
+    SRC_STATE          *src;
+    FIFO               *fifo;
+
+    // a basic sanity check
+    numDevices = Pa_GetDeviceCount();
+    if (devNum >= numDevices)
+        return;
+    if (devNum < 0)
+        return;
+
+    fifo = fifo_create((int)(DT*TEST_WAVEFORM_PLOT_FS*2)); assert(fifo != NULL);
+    src = src_new(SRC_SINC_FASTEST, 1, &src_error); assert(src != NULL);
+
+    // work out how many output channels this device supports.
+
+    deviceInfo = Pa_GetDeviceInfo(devNum);
+    if (deviceInfo == NULL) {
+        wxMessageBox(wxT("Couldn't get device info from Port Audio for Sound Card "), wxT("Error"), wxOK);
+        return;
+    }
+    if (deviceInfo->maxOutputChannels == 1)
+        outputChannels = 1;
+    else
+        outputChannels = 2;
+
+    printf("outputChannels: %d\n", outputChannels);
+
+    outputParameters.device = devNum;
+    outputParameters.channelCount = outputChannels;
+    outputParameters.sampleFormat = paInt16;
+    outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency;
+    outputParameters.hostApiSpecificStreamInfo = NULL;
+
+    nBufs = TEST_WAVEFORM_PLOT_TIME*TEST_FS/TEST_BUF_SIZE;
+
+    err = Pa_OpenStream(
+              &stream,
+              NULL,
+              &outputParameters,
+              TEST_FS,
+              TEST_BUF_SIZE,
+              paClipOff,    
+              NULL,       // no callback, use blocking API
+              NULL ); 
+    if (err != paNoError) {
+        wxMessageBox(wxT("Couldn't initialise sound device."), wxT("Error"), wxOK);       
+        return;
+    }
+
+    err = Pa_StartStream(stream);
+    if (err != paNoError) {
+        wxMessageBox(wxT("Couldn't start sound device."), wxT("Error"), wxOK);       
+        return;
+    }
+
+    for(i=0, t=0.0, n=0; i<nBufs; i++, t+=(float)TEST_BUF_SIZE/TEST_FS) {
+        for(j=0; j<TEST_BUF_SIZE; j++,n++) {
+            out48k_short[j] = 2000.0*cos(6.2832*(n++)*400.0/TEST_FS);
+            if (outputChannels == 2) {
+                out48k_stereo_short[2*j] = out48k_short[j];   // left channel
+                out48k_stereo_short[2*j+1] = out48k_short[j]; // right channel
+            }
+            else {
+                out48k_stereo_short[j] = out48k_short[j];     // mono
+            }
+        }
+        Pa_WriteStream(stream, out48k_stereo_short, TEST_BUF_SIZE);
+
+        // convert back to 8kHz just for plotting
+        int n8k = resample(src, out8k_short, out48k_short, 8000, TEST_FS, TEST_BUF_SIZE, TEST_BUF_SIZE);
+        resample_for_plot(fifo, out8k_short, n8k, FS);
+
+        // every TEST_DT seconds update plot
+
+        if (t > TEST_DT) {
+            t -= TEST_DT;
+            short plotSamples[TEST_WAVEFORM_PLOT_BUF];
+            if (fifo_read(fifo, plotSamples, TEST_WAVEFORM_PLOT_BUF))
+                memset(plotSamples, 0, TEST_WAVEFORM_PLOT_BUF*sizeof(short));
+            plotScalar->add_new_short_samples(0, plotSamples, TEST_WAVEFORM_PLOT_BUF, 32767);
+            plotScalar->Refresh();
+       }
+    }
+   
+    err = Pa_StopStream(stream);
+    if (err != paNoError) {
+        wxMessageBox(wxT("Couldn't stop sound device."), wxT("Error"), wxOK);       
+        return;
+    }
+    Pa_CloseStream(stream);
+
+    fifo_destroy(fifo);
+    src_delete(src);
+}
+
+//-------------------------------------------------------------------------
+// OnRxInTest()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnRxInTest(wxCommandEvent& event)
+{
+    plotDeviceInputForAFewSecs(rxInAudioDeviceNum, m_plotScalarRxIn);
+}
+
+//-------------------------------------------------------------------------
+// OnRxOutTest()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnRxOutTest(wxCommandEvent& event)
+{
+    plotDeviceOutputForAFewSecs(rxOutAudioDeviceNum, m_plotScalarRxOut);
+}
+
+//-------------------------------------------------------------------------
+// OnTxInTest()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnTxInTest(wxCommandEvent& event)
+{
+    plotDeviceInputForAFewSecs(txInAudioDeviceNum, m_plotScalarTxIn);
+}
+
+//-------------------------------------------------------------------------
+// OnTxOutTest()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnTxOutTest(wxCommandEvent& event)
+{
+    plotDeviceOutputForAFewSecs(txOutAudioDeviceNum, m_plotScalarTxOut);
+}
+
+//-------------------------------------------------------------------------
+// OnRefreshClick()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnRefreshClick(wxCommandEvent& event)
+{
+    // restart portaudio, to re-sample available devices
+
+    Pa_Terminate();
+    Pa_Init();
+
+    m_notebook1->SetSelection(0);
+    showAPIInfo();
+    populateParams(m_RxInDevices);
+    populateParams(m_RxOutDevices);
+    populateParams(m_TxInDevices);
+    populateParams(m_TxOutDevices);
+
+    // some devices may have dissapeared, so possibily change sound
+    // card config
+
+    ExchangeData(EXCHANGE_DATA_IN);
+}
+
+//-------------------------------------------------------------------------
+// OnApplyAudioParameters()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnApplyAudioParameters(wxCommandEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_OUT);
+    if(m_isPaInitialized)
+    {
+        if((pa_err = Pa_Terminate()) == paNoError)
+        {
+            m_isPaInitialized = false;
+        }
+        else
+        {
+            wxMessageBox(wxT("Port Audio failed to Terminate"), wxT("Pa_Terminate"), wxOK);
+        }
+    }
+}
+
+//-------------------------------------------------------------------------
+// OnCancelAudioParameters()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnCancelAudioParameters(wxCommandEvent& event)
+{
+    if(m_isPaInitialized)
+    {
+        if((pa_err = Pa_Terminate()) == paNoError)
+        {
+            m_isPaInitialized = false;
+        }
+        else
+        {
+            wxMessageBox(wxT("Port Audio failed to Terminate"), wxT("Pa_Terminate"), wxOK);
+        }
+    }
+    EndModal(wxCANCEL);
+}
+
+//-------------------------------------------------------------------------
+// OnOkAudioParameters()
+//-------------------------------------------------------------------------
+void AudioOptsDialog::OnOkAudioParameters(wxCommandEvent& event)
+{
+    int status = ExchangeData(EXCHANGE_DATA_OUT);
+
+    // We only accept OK if config sucessful
+
+    printf("status: %d m_isPaInitialized: %d\n", status, m_isPaInitialized);
+    if (status == 0) {
+        if(m_isPaInitialized)
+        {
+            if((pa_err = Pa_Terminate()) == paNoError)
+            {
+                printf("terminated OK\n");
+                m_isPaInitialized = false;
+            }
+            else
+            {
+                wxMessageBox(wxT("Port Audio failed to Terminate"), wxT("Pa_Terminate"), wxOK);
+            }
+        }
+        EndModal(wxOK);
+    }
+
+}
diff --git a/src/dlg_audiooptions.h b/src/dlg_audiooptions.h
new file mode 100644
index 0000000..5aa6741
--- /dev/null
+++ b/src/dlg_audiooptions.h
@@ -0,0 +1,176 @@
+//=========================================================================
+// Name:          AudioInfoDisplay.h
+// Purpose:       Declares simple wxWidgets application with GUI
+//                created using wxFormBuilder.
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//=========================================================================
+#ifndef __AudioOptsDialog__
+#define __AudioOptsDialog__
+
+#include "fdmdv2_main.h"
+
+#define ID_AUDIO_OPTIONS    1000
+#define AUDIO_IN            0
+#define AUDIO_OUT           1
+
+#include "portaudio.h"
+#ifdef WIN32
+#if PA_USE_ASIO
+#include "pa_asio.h"
+#endif
+#endif
+#include "codec2_fifo.h"
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// AudioInfoDisplay
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class AudioInfoDisplay
+{
+    public:
+        wxListCtrl*     m_listDevices;
+        int             direction;
+        wxTextCtrl*     m_textDevice;
+        wxComboBox*     m_cbSampleRate;
+};
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// class AudioOptsDialog
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class AudioOptsDialog : public wxDialog
+{
+    private:
+
+    protected:
+        PaError         pa_err;
+        bool            m_isPaInitialized;
+
+        int             rxInAudioDeviceNum;
+        int             rxOutAudioDeviceNum;
+        int             txInAudioDeviceNum;
+        int             txOutAudioDeviceNum;
+
+        void buildTestControls(PlotScalar **plotScalar, wxButton **btnTest, 
+                               wxPanel *parentPanel, wxBoxSizer *bSizer, wxString buttonLabel);
+        void plotDeviceInputForAFewSecs(int devNum, PlotScalar *plotScalar);
+        void plotDeviceOutputForAFewSecs(int devNum, PlotScalar *plotScalar);
+
+        int buildListOfSupportedSampleRates(wxComboBox *cbSampleRate, int devNum, int in_out);
+        void populateParams(AudioInfoDisplay);
+        void showAPIInfo();
+        int setTextCtrlIfDevNumValid(wxTextCtrl *textCtrl, wxListCtrl *listCtrl, int devNum);
+        void Pa_Init(void);
+        void OnDeviceSelect(wxComboBox *cbSampleRate, 
+                            wxTextCtrl *textCtrl, 
+                            int        *devNum, 
+                            wxListCtrl *listCtrlDevices, 
+                            int         index,
+                            int         in_out);
+
+        AudioInfoDisplay m_RxInDevices;
+        AudioInfoDisplay m_RxOutDevices;
+        AudioInfoDisplay m_TxInDevices;
+        AudioInfoDisplay m_TxOutDevices;
+        wxPanel* m_panel1;
+        wxNotebook* m_notebook1;
+
+        wxPanel* m_panelRx;
+
+        wxListCtrl* m_listCtrlRxInDevices;
+        wxStaticText* m_staticText51;
+        wxTextCtrl* m_textCtrlRxIn;
+        wxStaticText* m_staticText6;
+        wxComboBox* m_cbSampleRateRxIn;
+
+        wxButton* m_btnRxInTest;
+        PlotScalar* m_plotScalarRxIn;
+
+        wxListCtrl* m_listCtrlRxOutDevices;
+        wxStaticText* m_staticText9;
+        wxTextCtrl* m_textCtrlRxOut;
+        wxStaticText* m_staticText10;
+        wxComboBox* m_cbSampleRateRxOut;
+
+        wxButton* m_btnRxOutTest;
+        PlotScalar* m_plotScalarRxOut;
+
+        wxPanel* m_panelTx;
+
+        wxListCtrl* m_listCtrlTxInDevices;
+        wxStaticText* m_staticText12;
+        wxTextCtrl* m_textCtrlTxIn;
+        wxStaticText* m_staticText11;
+        wxComboBox* m_cbSampleRateTxIn;
+
+        wxButton* m_btnTxInTest;
+        PlotScalar* m_plotScalarTxIn;
+
+        wxListCtrl* m_listCtrlTxOutDevices;
+        wxStaticText* m_staticText81;
+        wxTextCtrl* m_textCtrlTxOut;
+        wxStaticText* m_staticText71;
+        wxComboBox* m_cbSampleRateTxOut;
+
+        wxButton* m_btnTxOutTest;
+        PlotScalar* m_plotScalarTxOut;
+
+        wxPanel* m_panelAPI;
+
+        wxStaticText* m_staticText7;
+        wxStaticText* m_textStringVer;
+        wxStaticText* m_staticText8;
+        wxStaticText* m_textIntVer;
+        wxStaticText* m_staticText5;
+        wxStaticText* m_textCDevCount;
+        wxStaticText* m_staticText4;
+        wxStaticText* m_textAPICount;
+        wxButton* m_btnRefresh;
+        wxStdDialogButtonSizer* m_sdbSizer1;
+        wxButton* m_sdbSizer1OK;
+        wxButton* m_sdbSizer1Apply;
+        wxButton* m_sdbSizer1Cancel;
+
+        // Virtual event handlers, overide them in your derived class
+        //virtual void OnActivateApp( wxActivateEvent& event ) { event.Skip(); }
+//        virtual void OnCloseFrame( wxCloseEvent& event ) { event.Skip(); }
+
+        void OnRxInDeviceSelect( wxListEvent& event );
+
+        void OnRxInTest( wxCommandEvent& event );
+        void OnRxOutTest( wxCommandEvent& event );
+        void OnTxInTest( wxCommandEvent& event );
+        void OnTxOutTest( wxCommandEvent& event );
+
+        void OnRxOutDeviceSelect( wxListEvent& event );
+        void OnTxInDeviceSelect( wxListEvent& event );
+        void OnTxOutDeviceSelect( wxListEvent& event );
+        void OnRefreshClick( wxCommandEvent& event );
+        void OnApplyAudioParameters( wxCommandEvent& event );
+        void OnCancelAudioParameters( wxCommandEvent& event );
+        void OnOkAudioParameters( wxCommandEvent& event );
+        // Virtual event handlers, overide them in your derived class
+        void OnClose( wxCloseEvent& event ) { event.Skip(); }
+        void OnHibernate( wxActivateEvent& event ) { event.Skip(); }
+        void OnIconize( wxIconizeEvent& event ) { event.Skip(); }
+        void OnInitDialog( wxInitDialogEvent& event );
+
+    public:
+
+        AudioOptsDialog( wxWindow* parent, wxWindowID id = wxID_ANY, const wxString& title = _("Audio Config"), const wxPoint& pos = wxPoint(1,1), const wxSize& size = wxSize( 800, 650 ), long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER );
+        ~AudioOptsDialog();
+        int ExchangeData(int inout);
+};
+#endif //__AudioOptsDialog__
diff --git a/src/dlg_filter.cpp b/src/dlg_filter.cpp
new file mode 100644
index 0000000..5a5294a
--- /dev/null
+++ b/src/dlg_filter.cpp
@@ -0,0 +1,785 @@
+//==========================================================================
+// Name:            dlg_filter.cpp
+// Purpose:         Dialog for controlling Codec audio filtering
+// Date:            Nov 25 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include "dlg_filter.h"
+
+#define SLIDER_MAX 100
+#define SLIDER_LENGTH 100
+
+#define FILTER_MIN_MAG_DB -20.0
+#define FILTER_MAX_MAG_DB  20.0
+
+#define MAX_FREQ_BASS      600.00
+#define MAX_FREQ_TREBLE   3900.00
+#define MAX_FREQ_DEF      3000.00
+
+#define MIN_GAIN          -20
+#define MAX_GAIN           20
+
+#define MAX_LOG10_Q         1.0
+#define MIN_LOG10_Q        -1.0 
+
+// DFT parameters
+
+#define IMP_AMP           2000.0                     // amplitude of impulse
+#define NIMP              50                         // number of samples in impulse response
+#define F_STEP_DFT        10.0                       // frequency steps to sample spectrum
+#define F_MAG_N           (int)(MAX_F_HZ/F_STEP_DFT) // number of frequency steps
+
+extern struct freedv      *g_pfreedv;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class FilterDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+FilterDlg::FilterDlg(wxWindow* parent, bool running, bool *newMicInFilter, bool *newSpkOutFilter,
+                     wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style) : wxDialog(parent, id, title, pos, size, style)
+{
+    m_running = running;
+    m_newMicInFilter = newMicInFilter;
+    m_newSpkOutFilter = newSpkOutFilter;
+
+    this->SetSizeHints(wxDefaultSize, wxDefaultSize);
+
+    wxBoxSizer* bSizer30;
+    bSizer30 = new wxBoxSizer(wxVERTICAL);
+
+    // LPC Post Filter --------------------------------------------------------
+
+    wxStaticBoxSizer* lpcpfs = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("LPC Post Filter")), wxHORIZONTAL);
+
+    wxBoxSizer* left = new wxBoxSizer(wxVERTICAL);
+
+    m_codec2LPCPostFilterEnable = new wxCheckBox(this, wxID_ANY, _("Enable"), wxDefaultPosition,wxDefaultSize, wxCHK_2STATE);
+    left->Add(m_codec2LPCPostFilterEnable);
+
+    m_codec2LPCPostFilterBassBoost = new wxCheckBox(this, wxID_ANY, _("0-1 kHz 3dB Boost"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    left->Add(m_codec2LPCPostFilterBassBoost);
+    lpcpfs->Add(left, 0, wxALL, 5);
+
+    newLPCPFControl(&m_codec2LPCPostFilterBeta, &m_staticTextBeta, lpcpfs, "Beta");
+    newLPCPFControl(&m_codec2LPCPostFilterGamma, &m_staticTextGamma, lpcpfs, "Gamma");
+
+    m_LPCPostFilterDefault = new wxButton(this, wxID_ANY, wxT("Default"));
+    lpcpfs->Add(m_LPCPostFilterDefault, 0, wxALL|wxALIGN_CENTRE_HORIZONTAL|wxALIGN_CENTRE_VERTICAL, 5);
+
+    bSizer30->Add(lpcpfs, 0, wxALL, 0);
+
+    // Speex pre-processor --------------------------------------------------
+
+    wxStaticBoxSizer* sbSizer_speexpp;
+    wxStaticBox *sb_speexpp = new wxStaticBox(this, wxID_ANY, _("Speex Mic Audio Pre-Processor"));
+    sbSizer_speexpp = new wxStaticBoxSizer(sb_speexpp, wxVERTICAL);
+
+    m_ckboxSpeexpp = new wxCheckBox(this, wxID_ANY, _("Enable"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sb_speexpp->SetToolTip(_("Enable noise supression, dereverberation, AGC of mic signal"));
+    sbSizer_speexpp->Add(m_ckboxSpeexpp, wxALIGN_LEFT, 2);
+
+    bSizer30->Add(sbSizer_speexpp, 0, wxALL, 0);   
+
+    // EQ Filters -----------------------------------------------------------
+
+    wxStaticBoxSizer* eqMicInSizer = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Mic In Equaliser")), wxVERTICAL);
+    wxBoxSizer* eqMicInSizer1 = new wxBoxSizer(wxHORIZONTAL);
+    wxBoxSizer* eqMicInSizer2 = new wxBoxSizer(wxHORIZONTAL);
+
+    m_MicInBass   = newEQ(eqMicInSizer1, "Bass"  , MAX_FREQ_BASS, disableQ);
+    m_MicInTreble = newEQ(eqMicInSizer1, "Treble", MAX_FREQ_TREBLE, disableQ);
+    eqMicInSizer->Add(eqMicInSizer1);
+
+    m_MicInEnable = new wxCheckBox(this, wxID_ANY, _("Enable"), wxDefaultPosition,wxDefaultSize, wxCHK_2STATE);
+    eqMicInSizer2->Add(m_MicInEnable,0,wxALIGN_CENTRE_VERTICAL|wxRIGHT,10);
+    m_MicInMid    = newEQ(eqMicInSizer2, "Mid"   , MAX_FREQ_DEF, enableQ);
+    m_MicInDefault = new wxButton(this, wxID_ANY, wxT("Default"));
+    eqMicInSizer2->Add(m_MicInDefault,0,wxALIGN_CENTRE_VERTICAL|wxLEFT,20);
+    eqMicInSizer->Add(eqMicInSizer2);
+
+    wxStaticBoxSizer* eqSpkOutSizer = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Speaker Out Equaliser")), wxVERTICAL);
+    wxBoxSizer* eqSpkOutSizer1 = new wxBoxSizer(wxHORIZONTAL);
+    wxBoxSizer* eqSpkOutSizer2 = new wxBoxSizer(wxHORIZONTAL);
+
+    m_SpkOutBass   = newEQ(eqSpkOutSizer1, "Bass"  , MAX_FREQ_BASS, disableQ);
+    m_SpkOutTreble = newEQ(eqSpkOutSizer1, "Treble", MAX_FREQ_TREBLE, disableQ);
+    eqSpkOutSizer->Add(eqSpkOutSizer1);
+
+    m_SpkOutEnable = new wxCheckBox(this, wxID_ANY, _("Enable"), wxDefaultPosition,wxDefaultSize, wxCHK_2STATE);
+    eqSpkOutSizer2->Add(m_SpkOutEnable,0,wxALIGN_CENTRE_VERTICAL|wxRIGHT,10);
+    m_SpkOutMid    = newEQ(eqSpkOutSizer2, "Mid"   , MAX_FREQ_DEF, enableQ);
+    m_SpkOutDefault = new wxButton(this, wxID_ANY, wxT("Default"));
+    eqSpkOutSizer2->Add(m_SpkOutDefault,0,wxALIGN_CENTRE_VERTICAL|wxLEFT,20);
+    eqSpkOutSizer->Add(eqSpkOutSizer2);
+    
+    bSizer30->Add(eqMicInSizer, 0, wxALL, 0);
+    bSizer30->Add(eqSpkOutSizer, 0, wxALL, 0);
+
+    // Storgage for spectrum magnitude plots ------------------------------------
+
+    m_MicInMagdB = new float[F_MAG_N];
+    for(int i=0; i<F_MAG_N; i++)
+        m_MicInMagdB[i] = 0.0;
+
+    m_SpkOutMagdB = new float[F_MAG_N];
+    for(int i=0; i<F_MAG_N; i++)
+        m_SpkOutMagdB[i] = 0.0;
+
+    // Spectrum Plots -----------------------------------------------------------
+
+    long nb_style = wxAUI_NB_BOTTOM | wxAUI_NB_TAB_SPLIT | wxAUI_NB_TAB_MOVE | wxAUI_NB_SCROLL_BUTTONS;
+    m_auiNotebook = new wxAuiNotebook(this, wxID_ANY, wxDefaultPosition, wxSize(-1,200), nb_style);
+    m_auiNotebook->SetFont(wxFont(8, 70, 90, 90, false, wxEmptyString));
+
+    bSizer30->Add(m_auiNotebook, 0, wxEXPAND|wxALL, 3);
+    
+    m_MicInFreqRespPlot = new PlotSpectrum((wxFrame*) m_auiNotebook, m_MicInMagdB, F_MAG_N, FILTER_MIN_MAG_DB, FILTER_MAX_MAG_DB);
+    m_auiNotebook->AddPage(m_MicInFreqRespPlot, _("Microphone In Equaliser"));
+
+    m_SpkOutFreqRespPlot = new PlotSpectrum((wxFrame*)m_auiNotebook, m_SpkOutMagdB, F_MAG_N, FILTER_MIN_MAG_DB, FILTER_MAX_MAG_DB);
+    m_auiNotebook->AddPage(m_SpkOutFreqRespPlot, _("Speaker Out Equaliser"));
+
+    //  OK - Cancel buttons at the bottom --------------------------
+
+    wxBoxSizer* bSizer31 = new wxBoxSizer(wxHORIZONTAL);
+
+    m_sdbSizer5OK = new wxButton(this, wxID_OK);
+    bSizer31->Add(m_sdbSizer5OK, 0, wxALL, 2);
+
+    m_sdbSizer5Cancel = new wxButton(this, wxID_CANCEL);
+    bSizer31->Add(m_sdbSizer5Cancel, 0, wxALL, 2);
+
+    bSizer30->Add(bSizer31, 0, wxALIGN_RIGHT|wxALL, 0);
+
+    this->SetSizer(bSizer30);
+    this->Layout();
+
+    this->Centre(wxBOTH);
+ 
+    // Connect Events -------------------------------------------------------
+
+    this->Connect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(FilterDlg::OnInitDialog));
+
+    m_codec2LPCPostFilterEnable->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnEnable), NULL, this);
+    m_codec2LPCPostFilterBassBoost->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnBassBoost), NULL, this);
+    m_codec2LPCPostFilterBeta->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnBetaScroll), NULL, this);
+    m_codec2LPCPostFilterGamma->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnGammaScroll), NULL, this);
+    m_LPCPostFilterDefault->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnLPCPostFilterDefault), NULL, this);
+
+    m_ckboxSpeexpp->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnSpeexppEnable), NULL, this);
+
+    m_MicInBass.sliderFreq->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInBassFreqScroll), NULL, this);
+    m_MicInBass.sliderGain->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInBassGainScroll), NULL, this);
+    m_MicInTreble.sliderFreq->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInTrebleFreqScroll), NULL, this);
+    m_MicInTreble.sliderGain->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInTrebleGainScroll), NULL, this);
+    m_MicInMid.sliderFreq->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInMidFreqScroll), NULL, this);
+    m_MicInMid.sliderGain->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInMidGainScroll), NULL, this);
+    m_MicInMid.sliderQ->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInMidQScroll), NULL, this);
+    m_MicInEnable->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnMicInEnable), NULL, this);
+    m_MicInDefault->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnMicInDefault), NULL, this);
+
+    m_SpkOutBass.sliderFreq->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutBassFreqScroll), NULL, this);
+    m_SpkOutBass.sliderGain->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutBassGainScroll), NULL, this);
+    m_SpkOutTreble.sliderFreq->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutTrebleFreqScroll), NULL, this);
+    m_SpkOutTreble.sliderGain->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutTrebleGainScroll), NULL, this);
+    m_SpkOutMid.sliderFreq->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutMidFreqScroll), NULL, this);
+    m_SpkOutMid.sliderGain->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutMidGainScroll), NULL, this);
+    m_SpkOutMid.sliderQ->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutMidQScroll), NULL, this);
+    m_SpkOutEnable->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnSpkOutEnable), NULL, this);
+    m_SpkOutDefault->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnSpkOutDefault), NULL, this);
+
+    m_sdbSizer5Cancel->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnCancel), NULL, this);
+    m_sdbSizer5OK->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnOK), NULL, this);
+
+}
+
+//-------------------------------------------------------------------------
+// ~FilterDlg()
+//-------------------------------------------------------------------------
+FilterDlg::~FilterDlg()
+{
+    delete m_MicInMagdB;
+    delete m_SpkOutMagdB;
+
+    // Disconnect Events
+
+    this->Disconnect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(FilterDlg::OnInitDialog));
+
+    m_codec2LPCPostFilterEnable->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnEnable), NULL, this);
+    m_codec2LPCPostFilterBassBoost->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnBassBoost), NULL, this);
+    m_codec2LPCPostFilterBeta->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnBetaScroll), NULL, this);
+    m_codec2LPCPostFilterGamma->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnGammaScroll), NULL, this);
+    m_LPCPostFilterDefault->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnLPCPostFilterDefault), NULL, this);
+
+    m_MicInBass.sliderFreq->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInBassFreqScroll), NULL, this);
+    m_MicInBass.sliderGain->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInBassGainScroll), NULL, this);
+    m_MicInTreble.sliderFreq->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInTrebleFreqScroll), NULL, this);
+    m_MicInTreble.sliderGain->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInTrebleGainScroll), NULL, this);
+    m_MicInMid.sliderFreq->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInMidFreqScroll), NULL, this);
+    m_MicInMid.sliderGain->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInMidGainScroll), NULL, this);
+    m_MicInMid.sliderQ->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnMicInMidQScroll), NULL, this);
+    m_MicInEnable->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnMicInEnable), NULL, this);
+    m_MicInDefault->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnMicInDefault), NULL, this);
+
+    m_SpkOutBass.sliderFreq->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutBassFreqScroll), NULL, this);
+    m_SpkOutBass.sliderGain->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutBassGainScroll), NULL, this);
+    m_SpkOutTreble.sliderFreq->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutTrebleFreqScroll), NULL, this);
+    m_SpkOutTreble.sliderGain->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutTrebleGainScroll), NULL, this);
+    m_SpkOutMid.sliderFreq->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutMidFreqScroll), NULL, this);
+    m_SpkOutMid.sliderGain->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutMidGainScroll), NULL, this);
+    m_SpkOutMid.sliderQ->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(FilterDlg::OnSpkOutMidQScroll), NULL, this);
+    m_SpkOutEnable->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(FilterDlg::OnSpkOutEnable), NULL, this);
+    m_SpkOutDefault->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnSpkOutDefault), NULL, this);
+
+    m_sdbSizer5Cancel->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnCancel), NULL, this);
+    m_sdbSizer5OK->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(FilterDlg::OnOK), NULL, this);
+}
+
+void FilterDlg::newLPCPFControl(wxSlider **slider, wxStaticText **stValue, wxSizer *s, wxString controlName)
+{
+    wxBoxSizer *bs = new wxBoxSizer(wxHORIZONTAL);
+
+    wxStaticText* st = new wxStaticText(this, wxID_ANY, controlName, wxDefaultPosition, wxSize(70,-1), wxALIGN_RIGHT);
+    bs->Add(st, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 2);
+
+    *slider = new wxSlider(this, wxID_ANY, 0, 0, SLIDER_MAX, wxDefaultPosition, wxSize(SLIDER_LENGTH,wxDefaultCoord));
+    bs->Add(*slider, 1, wxALIGN_CENTER_VERTICAL|wxALL, 2);
+
+    *stValue = new wxStaticText(this, wxID_ANY, wxT("0.0"), wxDefaultPosition, wxDefaultSize, wxALIGN_LEFT);
+    bs->Add(*stValue, 1, wxALIGN_CENTER_VERTICAL|wxALIGN_LEFT|wxALL, 2);
+
+    s->Add(bs, 0);
+}
+
+void FilterDlg::newEQControl(wxSlider** slider, wxStaticText** value, wxStaticBoxSizer *bs, wxString controlName)
+{
+    wxStaticText* label = new wxStaticText(this, wxID_ANY, controlName, wxDefaultPosition, wxDefaultSize, wxALIGN_RIGHT);
+    bs->Add(label, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxALL, 0);
+
+    *slider = new wxSlider(this, wxID_ANY, 0, 0, SLIDER_MAX, wxDefaultPosition, wxSize(SLIDER_LENGTH,wxDefaultCoord));
+    bs->Add(*slider, 1, wxALIGN_CENTER_VERTICAL|wxALL, 0);
+
+    *value = new wxStaticText(this, wxID_ANY, wxT(""), wxDefaultPosition, wxSize(40,-1), wxALIGN_LEFT);
+    bs->Add(*value, 0, wxALIGN_CENTER_VERTICAL|wxALIGN_RIGHT|wxRIGHT, 5);
+}
+
+EQ FilterDlg::newEQ(wxSizer *bs, wxString eqName, float maxFreqHz, bool enableQ)
+{
+    EQ eq;
+
+    wxStaticBoxSizer *bsEQ = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, eqName), wxHORIZONTAL);
+
+    newEQControl(&eq.sliderFreq, &eq.valueFreq, bsEQ, "Freq"); 
+    eq.maxFreqHz = maxFreqHz; 
+    eq.sliderFreqId = eq.sliderFreq->GetId();
+
+    newEQControl(&eq.sliderGain, &eq.valueGain, bsEQ, "Gain");
+    if (enableQ)
+        newEQControl(&eq.sliderQ, &eq.valueQ, bsEQ, "Q");
+    else
+        eq.sliderQ = NULL;
+
+    bs->Add(bsEQ);
+
+    return eq;
+}
+
+//-------------------------------------------------------------------------
+// ExchangeData()
+//-------------------------------------------------------------------------
+void FilterDlg::ExchangeData(int inout, bool storePersistent)
+{
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    if(inout == EXCHANGE_DATA_IN)
+    {
+        // LPC Post filter
+
+        m_codec2LPCPostFilterEnable->SetValue(wxGetApp().m_codec2LPCPostFilterEnable);
+        m_codec2LPCPostFilterBassBoost->SetValue(wxGetApp().m_codec2LPCPostFilterBassBoost);
+        m_beta = wxGetApp().m_codec2LPCPostFilterBeta; setBeta();
+        m_gamma = wxGetApp().m_codec2LPCPostFilterGamma; setGamma();
+
+        // Speex Pre-Processor
+
+        m_ckboxSpeexpp->SetValue(wxGetApp().m_speexpp_enable);
+
+        // Mic In Equaliser
+
+        m_MicInBass.freqHz = wxGetApp().m_MicInBassFreqHz; 
+        m_MicInBass.freqHz = limit(m_MicInBass.freqHz, 1.0, MAX_FREQ_BASS);
+        setFreq(&m_MicInBass);
+        m_MicInBass.gaindB = wxGetApp().m_MicInBassGaindB;
+        m_MicInBass.gaindB = limit(m_MicInBass.gaindB, MIN_GAIN, MAX_GAIN);
+        setGain(&m_MicInBass);
+
+        m_MicInTreble.freqHz = wxGetApp().m_MicInTrebleFreqHz;
+        m_MicInTreble.freqHz = limit(m_MicInTreble.freqHz, 1.0, MAX_FREQ_TREBLE);
+        setFreq(&m_MicInTreble);
+        m_MicInTreble.gaindB = wxGetApp().m_MicInTrebleGaindB; 
+        m_MicInTreble.gaindB = limit(m_MicInTreble.gaindB, MIN_GAIN, MAX_GAIN);
+        setGain(&m_MicInTreble);
+
+        m_MicInMid.freqHz = wxGetApp().m_MicInMidFreqHz; 
+        m_MicInMid.freqHz = limit(m_MicInMid.freqHz, 1.0, MAX_FREQ_TREBLE);
+        setFreq(&m_MicInMid);
+        m_MicInMid.gaindB = wxGetApp().m_MicInMidGaindB; 
+        m_MicInMid.gaindB = limit(m_MicInMid.gaindB, MIN_GAIN, MAX_GAIN);
+        setGain(&m_MicInMid);
+        m_MicInMid.Q = wxGetApp().m_MicInMidQ;
+        m_MicInMid.Q = limit(m_MicInMid.Q, pow(10.0,MIN_LOG10_Q), pow(10.0, MAX_LOG10_Q));
+        setQ(&m_MicInMid);
+
+        m_MicInEnable->SetValue(wxGetApp().m_MicInEQEnable);
+
+        plotMicInFilterSpectrum();
+ 
+        // Spk Out Equaliser
+
+        m_SpkOutBass.freqHz = wxGetApp().m_SpkOutBassFreqHz;
+        m_SpkOutBass.freqHz = limit(m_SpkOutBass.freqHz, 1.0, MAX_FREQ_BASS);
+        setFreq(&m_SpkOutBass);
+        m_SpkOutBass.gaindB = wxGetApp().m_SpkOutBassGaindB; 
+        m_SpkOutBass.gaindB = limit(m_SpkOutBass.gaindB, MIN_GAIN, MAX_GAIN);
+        setGain(&m_SpkOutBass);
+
+        m_SpkOutTreble.freqHz = wxGetApp().m_SpkOutTrebleFreqHz; 
+        m_SpkOutTreble.freqHz = limit(m_SpkOutTreble.freqHz, 1.0, MAX_FREQ_TREBLE);
+        setFreq(&m_SpkOutTreble);
+        m_SpkOutTreble.gaindB = wxGetApp().m_SpkOutTrebleGaindB; 
+        m_SpkOutTreble.gaindB = limit(m_SpkOutTreble.gaindB, MIN_GAIN, MAX_GAIN);
+        setGain(&m_SpkOutTreble);
+
+        m_SpkOutMid.freqHz = wxGetApp().m_SpkOutMidFreqHz;
+        m_SpkOutMid.freqHz = limit(m_SpkOutMid.freqHz, 1.0, MAX_FREQ_TREBLE);
+        setFreq(&m_SpkOutMid);
+        m_SpkOutMid.gaindB = wxGetApp().m_SpkOutMidGaindB;
+        m_SpkOutMid.gaindB = limit(m_SpkOutMid.gaindB, MIN_GAIN, MAX_GAIN);
+        setGain(&m_SpkOutMid);
+        m_SpkOutMid.Q = wxGetApp().m_SpkOutMidQ;
+        m_SpkOutMid.Q = limit(m_SpkOutMid.Q, pow(10.0,MIN_LOG10_Q), pow(10.0, MAX_LOG10_Q));
+        setQ(&m_SpkOutMid);
+
+        m_SpkOutEnable->SetValue(wxGetApp().m_SpkOutEQEnable);
+
+        plotSpkOutFilterSpectrum();
+    }
+    if(inout == EXCHANGE_DATA_OUT)
+    {
+        // LPC Post filter
+
+        wxGetApp().m_codec2LPCPostFilterEnable     = m_codec2LPCPostFilterEnable->GetValue();
+        wxGetApp().m_codec2LPCPostFilterBassBoost  = m_codec2LPCPostFilterBassBoost->GetValue();
+        wxGetApp().m_codec2LPCPostFilterBeta       = m_beta;
+        wxGetApp().m_codec2LPCPostFilterGamma      = m_gamma;
+
+        // Speex Pre-Processor
+
+        wxGetApp().m_speexpp_enable = m_ckboxSpeexpp->GetValue();
+
+        // Mic In Equaliser
+
+        wxGetApp().m_MicInBassFreqHz = m_MicInBass.freqHz;
+        wxGetApp().m_MicInBassGaindB = m_MicInBass.gaindB;
+
+        wxGetApp().m_MicInTrebleFreqHz = m_MicInTreble.freqHz;
+        wxGetApp().m_MicInTrebleGaindB = m_MicInTreble.gaindB;
+
+        wxGetApp().m_MicInMidFreqHz = m_MicInMid.freqHz;
+        wxGetApp().m_MicInMidGaindB = m_MicInMid.gaindB;
+        wxGetApp().m_MicInMidQ = m_MicInMid.Q;
+
+        // Spk Out Equaliser
+
+        wxGetApp().m_SpkOutBassFreqHz = m_SpkOutBass.freqHz;
+        wxGetApp().m_SpkOutBassGaindB = m_SpkOutBass.gaindB;
+
+        wxGetApp().m_SpkOutTrebleFreqHz = m_SpkOutTreble.freqHz;
+        wxGetApp().m_SpkOutTrebleGaindB = m_SpkOutTreble.gaindB;
+
+        wxGetApp().m_SpkOutMidFreqHz = m_SpkOutMid.freqHz;
+        wxGetApp().m_SpkOutMidGaindB = m_SpkOutMid.gaindB;
+        wxGetApp().m_SpkOutMidQ = m_SpkOutMid.Q;
+
+        if (storePersistent) {
+            pConfig->Write(wxT("/Filter/codec2LPCPostFilterEnable"),     wxGetApp().m_codec2LPCPostFilterEnable);
+            pConfig->Write(wxT("/Filter/codec2LPCPostFilterBassBoost"),  wxGetApp().m_codec2LPCPostFilterBassBoost);
+            pConfig->Write(wxT("/Filter/codec2LPCPostFilterBeta"),       (int)(m_beta*100.0));
+            pConfig->Write(wxT("/Filter/codec2LPCPostFilterGamma"),      (int)(m_gamma*100.0));
+
+            pConfig->Write(wxT("/Filter/speexpp_enable"),                wxGetApp().m_speexpp_enable);
+
+            pConfig->Write(wxT("/Filter/MicInBassFreqHz"), (int)m_MicInBass.freqHz);
+            pConfig->Write(wxT("/Filter/MicInBassGaindB"), (int)(10.0*m_MicInBass.gaindB));
+            pConfig->Write(wxT("/Filter/MicInTrebleFreqHz"), (int)m_MicInTreble.freqHz);
+            pConfig->Write(wxT("/Filter/MicInTrebleGaindB"), (int)(10.0*m_MicInTreble.gaindB));
+            pConfig->Write(wxT("/Filter/MicInMidFreqHz"), (int)m_MicInMid.freqHz);
+            pConfig->Write(wxT("/Filter/MicInMidGaindB"), (int)(10.0*m_MicInMid.gaindB));
+            pConfig->Write(wxT("/Filter/MicInMidQ"), (int)(100.0*m_MicInMid.Q));
+
+            pConfig->Write(wxT("/Filter/SpkOutBassFreqHz"), (int)m_SpkOutBass.freqHz);
+            pConfig->Write(wxT("/Filter/SpkOutBassGaindB"), (int)(10.0*m_SpkOutBass.gaindB));
+            pConfig->Write(wxT("/Filter/SpkOutTrebleFreqHz"), (int)m_SpkOutTreble.freqHz);
+            pConfig->Write(wxT("/Filter/SpkOutTrebleGaindB"), (int)(10.0*m_SpkOutTreble.gaindB));
+            pConfig->Write(wxT("/Filter/SpkOutMidQ"), (int)(100.0*m_SpkOutMid.Q));
+            pConfig->Write(wxT("/Filter/SpkOutMidFreqHz"), (int)m_SpkOutMid.freqHz);
+            pConfig->Write(wxT("/Filter/SpkOutMidGaindB"), (int)(10.0*m_SpkOutMid.gaindB));
+
+            pConfig->Flush();
+        }
+    }
+    delete wxConfigBase::Set((wxConfigBase *) NULL);
+}
+
+float FilterDlg::limit(float value, float min, float max) {
+    if (value < min) return min;
+    if (value > max) return max;
+    return value;
+}
+
+//-------------------------------------------------------------------------
+// OnCancel()
+//-------------------------------------------------------------------------
+void FilterDlg::OnCancel(wxCommandEvent& event)
+{
+    this->EndModal(wxID_CANCEL);
+}
+
+//-------------------------------------------------------------------------
+// OnDefault()
+//-------------------------------------------------------------------------
+
+void FilterDlg::OnLPCPostFilterDefault(wxCommandEvent& event)
+{
+    m_beta = CODEC2_LPC_PF_BETA; setBeta();
+    m_gamma = CODEC2_LPC_PF_GAMMA; setGamma();
+    m_codec2LPCPostFilterEnable->SetValue(true);
+    m_codec2LPCPostFilterBassBoost->SetValue(true);
+}
+
+void FilterDlg::OnMicInDefault(wxCommandEvent& event)
+{
+    m_MicInBass.freqHz = 100.0;
+    m_MicInBass.gaindB = 0.0;
+    setFreq(&m_MicInBass); setGain(&m_MicInBass); 
+
+    m_MicInTreble.freqHz = 3000.0;
+    m_MicInTreble.gaindB = 0.0;
+    setFreq(&m_MicInTreble); setGain(&m_MicInTreble); 
+
+    m_MicInMid.freqHz = 1500.0;
+    m_MicInMid.gaindB = 0.0;
+    m_MicInMid.Q = 1.0;
+    setFreq(&m_MicInMid); setGain(&m_MicInMid); setQ(&m_MicInMid); 
+
+    plotMicInFilterSpectrum();    
+}
+
+void FilterDlg::OnSpkOutDefault(wxCommandEvent& event)
+{
+    m_SpkOutBass.freqHz = 100.0;
+    m_SpkOutBass.gaindB = 0.0;
+    setFreq(&m_SpkOutBass); setGain(&m_SpkOutBass); 
+
+    m_SpkOutTreble.freqHz = 3000.0;
+    m_SpkOutTreble.gaindB = 0.0;
+    setFreq(&m_SpkOutTreble); setGain(&m_SpkOutTreble); 
+
+    m_SpkOutMid.freqHz = 1500.0;
+    m_SpkOutMid.gaindB = 0.0;
+    m_SpkOutMid.Q = 1.0;
+    setFreq(&m_SpkOutMid); setGain(&m_SpkOutMid); setQ(&m_SpkOutMid); 
+
+    plotSpkOutFilterSpectrum();    
+}
+
+//-------------------------------------------------------------------------
+// OnOK()
+//-------------------------------------------------------------------------
+void FilterDlg::OnOK(wxCommandEvent& event)
+{
+    //printf("FilterDlg::OnOK\n");
+    ExchangeData(EXCHANGE_DATA_OUT, true);
+    this->EndModal(wxID_OK);
+}
+
+//-------------------------------------------------------------------------
+// OnClose()
+//-------------------------------------------------------------------------
+void FilterDlg::OnClose(wxCloseEvent& event)
+{
+    this->EndModal(wxID_OK);
+}
+
+//-------------------------------------------------------------------------
+// OnInitDialog()
+//-------------------------------------------------------------------------
+void FilterDlg::OnInitDialog(wxInitDialogEvent& event)
+{
+    //printf("FilterDlg::OnInitDialog\n");
+    ExchangeData(EXCHANGE_DATA_IN, false);
+    //printf("m_beta: %f\n", m_beta);
+}
+
+void FilterDlg::setBeta(void) {
+    wxString buf;
+    buf.Printf(wxT("%3.2f"), m_beta);
+    m_staticTextBeta->SetLabel(buf);
+    int slider = (int)(m_beta*SLIDER_MAX + 0.5);
+    m_codec2LPCPostFilterBeta->SetValue(slider);
+}
+
+void FilterDlg::setCodec2(void) {
+    if (m_running) {
+        codec2_set_lpc_post_filter(freedv_get_codec2(g_pfreedv), 
+                               m_codec2LPCPostFilterEnable->GetValue(), 
+                               m_codec2LPCPostFilterBassBoost->GetValue(), 
+                               m_beta, m_gamma);
+    }
+}
+
+void FilterDlg::setGamma(void) {
+    wxString buf;
+    buf.Printf(wxT("%3.2f"), m_gamma);
+    m_staticTextGamma->SetLabel(buf);
+    int slider = (int)(m_gamma*SLIDER_MAX + 0.5);
+    m_codec2LPCPostFilterGamma->SetValue(slider);
+}
+
+void FilterDlg::OnEnable(wxScrollEvent& event) {
+    setCodec2();    
+}
+
+void FilterDlg::OnBassBoost(wxScrollEvent& event) {
+    setCodec2();    
+}
+
+void FilterDlg::OnBetaScroll(wxScrollEvent& event) {
+    m_beta = (float)m_codec2LPCPostFilterBeta->GetValue()/SLIDER_MAX;
+    setBeta();
+    setCodec2();
+}
+
+void FilterDlg::OnGammaScroll(wxScrollEvent& event) {
+    m_gamma = (float)m_codec2LPCPostFilterGamma->GetValue()/SLIDER_MAX;
+    setGamma();
+    setCodec2();
+}
+
+// immediately change enable flags rather using ExchangeData() so we can switch on and off at run time
+
+void FilterDlg::OnSpeexppEnable(wxScrollEvent& event) {
+    wxGetApp().m_speexpp_enable = m_ckboxSpeexpp->GetValue();
+}
+
+void FilterDlg::OnMicInEnable(wxScrollEvent& event) {
+    wxGetApp().m_MicInEQEnable = m_MicInEnable->GetValue();
+}
+
+void FilterDlg::OnSpkOutEnable(wxScrollEvent& event) {
+    wxGetApp().m_SpkOutEQEnable = m_SpkOutEnable->GetValue();
+    //printf("wxGetApp().m_SpkOutEQEnable: %d\n", wxGetApp().m_SpkOutEQEnable);
+}
+
+void FilterDlg::setFreq(EQ *eq)
+{
+    wxString buf;
+    buf.Printf(wxT("%3.0f"), eq->freqHz);
+    eq->valueFreq->SetLabel(buf);
+    int slider = (int)((eq->freqHz/eq->maxFreqHz)*SLIDER_MAX + 0.5);
+    eq->sliderFreq->SetValue(slider);
+}
+
+void FilterDlg::sliderToFreq(EQ *eq, bool micIn)
+{
+    eq->freqHz = ((float)eq->sliderFreq->GetValue()/SLIDER_MAX)*eq->maxFreqHz;
+    if (eq->freqHz < 1.0) eq->freqHz = 1.0; // sox doesn't like 0 Hz;
+    setFreq(eq);
+    if (micIn) {
+        plotMicInFilterSpectrum();
+        adjRunTimeMicInFilter();
+    }
+    else {
+        plotSpkOutFilterSpectrum();
+        adjRunTimeSpkOutFilter();
+    }
+}
+
+void FilterDlg::setGain(EQ *eq)
+{
+    wxString buf;
+    buf.Printf(wxT("%3.1f"), eq->gaindB);
+    eq->valueGain->SetLabel(buf);
+    int slider = (int)(((eq->gaindB-MIN_GAIN)/(MAX_GAIN-MIN_GAIN))*SLIDER_MAX + 0.5);
+    eq->sliderGain->SetValue(slider);
+}
+
+void FilterDlg::sliderToGain(EQ *eq, bool micIn)
+{
+    float range = MAX_GAIN-MIN_GAIN;
+    
+    eq->gaindB = MIN_GAIN + range*((float)eq->sliderGain->GetValue()/SLIDER_MAX);
+    //printf("gaindB: %f\n", eq->gaindB);
+    setGain(eq);
+    if (micIn) {
+        plotMicInFilterSpectrum();
+        adjRunTimeMicInFilter();
+    }
+    else {
+        plotSpkOutFilterSpectrum();
+        adjRunTimeSpkOutFilter();
+    }
+        
+}
+
+void FilterDlg::setQ(EQ *eq)
+{
+    wxString buf;
+    buf.Printf(wxT("%2.1f"), eq->Q);
+    eq->valueQ->SetLabel(buf);
+
+    float log10_range = MAX_LOG10_Q - MIN_LOG10_Q;
+
+    int slider = (int)(((log10(eq->Q+1E-6)-MIN_LOG10_Q)/log10_range)*SLIDER_MAX + 0.5);
+    eq->sliderQ->SetValue(slider);
+}
+
+void FilterDlg::sliderToQ(EQ *eq, bool micIn)
+{
+    float log10_range = MAX_LOG10_Q - MIN_LOG10_Q;
+    
+    float sliderNorm = (float)eq->sliderQ->GetValue()/SLIDER_MAX;
+    float log10Q =  MIN_LOG10_Q + sliderNorm*(log10_range);
+    eq->Q = pow(10.0, log10Q);
+    //printf("log10Q: %f eq->Q: %f\n", log10Q, eq->Q);
+    setQ(eq);
+    if (micIn) {
+        plotMicInFilterSpectrum();
+        adjRunTimeMicInFilter();
+    }
+    else {
+        plotSpkOutFilterSpectrum();
+        adjRunTimeSpkOutFilter();
+    }
+}
+
+void FilterDlg::plotMicInFilterSpectrum(void) {
+    plotFilterSpectrum(&m_MicInBass, &m_MicInMid, &m_MicInTreble, m_MicInFreqRespPlot, m_MicInMagdB);
+}
+
+void FilterDlg::plotSpkOutFilterSpectrum(void) {
+    plotFilterSpectrum(&m_SpkOutBass, &m_SpkOutMid, &m_SpkOutTreble, m_SpkOutFreqRespPlot, m_SpkOutMagdB);
+}
+
+void FilterDlg::adjRunTimeMicInFilter(void) {
+    // signal an adjustment in running filter coeffs
+
+    if (m_running) {
+        ExchangeData(EXCHANGE_DATA_OUT, false);
+        *m_newMicInFilter = true;
+    }
+}
+        
+void FilterDlg::adjRunTimeSpkOutFilter(void) {
+    // signal an adjustment in running filter coeffs
+
+    if (m_running) {
+        ExchangeData(EXCHANGE_DATA_OUT, false);
+        *m_newSpkOutFilter = true;
+    }
+}
+        
+
+void FilterDlg::plotFilterSpectrum(EQ *eqBass, EQ *eqMid, EQ *eqTreble, PlotSpectrum* freqRespPlot, float *magdB) {
+    char  *argBass[10];
+    char  *argTreble[10];
+    char  *argMid[10];
+    char   argstorage[10][80];
+    float magBass[F_MAG_N];
+    float magTreble[F_MAG_N];
+    float magMid[F_MAG_N];
+    int   i;
+
+    for(i=0; i<10; i++) {
+        argBass[i] = &argstorage[i][0];
+        argTreble[i] = &argstorage[i][0];
+        argMid[i] = &argstorage[i][0];
+    }
+    sprintf(argBass[0], "bass");                
+    sprintf(argBass[1], "%f", eqBass->gaindB+1E-6);
+    sprintf(argBass[2], "%f", eqBass->freqHz);      
+
+    calcFilterSpectrum(magBass, 2, argBass);
+
+    sprintf(argTreble[0], "treble");                
+    sprintf(argTreble[1], "%f", eqTreble->gaindB+1E-6);
+    sprintf(argTreble[2], "%f", eqTreble->freqHz);      
+
+    calcFilterSpectrum(magTreble, 2, argTreble);
+
+    sprintf(argTreble[0], "equalizer");                
+    sprintf(argTreble[1], "%f", eqMid->freqHz);      
+    sprintf(argTreble[2], "%f", eqMid->Q);      
+    sprintf(argTreble[3], "%f", eqMid->gaindB+1E-6);
+
+    calcFilterSpectrum(magMid, 3, argMid);
+
+    for(i=0; i<F_MAG_N; i++)
+        magdB[i] = magBass[i] + magMid[i] + magTreble[i];
+    freqRespPlot->m_newdata = true;
+    freqRespPlot->Refresh();
+}
+
+void FilterDlg::calcFilterSpectrum(float magdB[], int argc, char *argv[]) {
+    void       *sbq;
+    short       in[NIMP];
+    short       out[NIMP];
+    COMP        X[F_MAG_N];
+    float       f, w;
+    int         i, k;
+
+    // find impulse response -----------------------------------
+
+    for(i=0; i<NIMP; i++)
+        in[i] = 0;
+    in[0] = IMP_AMP;
+
+    //printf("argv[0]: %s argv[1]: %s\n", argv[0], argv[1]);
+    sbq = sox_biquad_create(argc, (const char **)argv);
+
+    sox_biquad_filter(sbq, out, in, NIMP);
+    //for(i=0; i<NIMP; i++)
+    //    printf("%d\n", out[i]);
+   
+    sox_biquad_destroy(sbq);
+
+    //for(i=0; i<NIMP; i++)
+    //    out[i] = 0.0;
+    //out[0] = IMP_AMP;
+
+    // calculate discrete time continous frequency Fourer transform
+    // doing this from first principles rather than FFT for no good reason
+
+    for(f=0,i=0; f<MAX_F_HZ; f+=F_STEP_DFT,i++) {
+        w = M_PI*f/(FS/2);
+        X[i].real = 0.0; X[i].imag = 0.0;
+        for(k=0; k<NIMP; k++) {
+            X[i].real += ((float)out[k]/IMP_AMP) * cos(w*k);
+            X[i].imag -= ((float)out[k]/IMP_AMP) * sin(w*k);
+        }
+        magdB[i] = 10.0*log10(X[i].real* X[i].real + X[i].imag*X[i].imag + 1E-12);
+        //printf("f: %f X[%d] = %f %f magdB = %f\n", f, i, X[i].real, X[i].imag,  magdB[i]);
+    }
+}
diff --git a/src/dlg_filter.h b/src/dlg_filter.h
new file mode 100644
index 0000000..82c43df
--- /dev/null
+++ b/src/dlg_filter.h
@@ -0,0 +1,166 @@
+//==========================================================================
+// Name:            dlg_filter.h
+// Purpose:         Dialog for controlling Codec audio filtering
+// Created:         Nov 25 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#ifndef __FILTER_DIALOG__
+#define __FILTER_DIALOG__
+
+#include "fdmdv2_main.h"
+
+enum {disableQ = false, enableQ = true};
+
+typedef struct { 
+    wxSlider     *sliderFreq;
+    wxStaticText *valueFreq;
+    wxSlider     *sliderGain;
+    wxStaticText *valueGain;
+    wxSlider     *sliderQ;
+    wxStaticText *valueQ;
+
+    int       sliderFreqId;
+    int       sliderGainId;
+    int       sliderQId;
+    
+    float     freqHz;
+    float     gaindB;
+    float     Q;
+
+    float     maxFreqHz;
+} EQ;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class FilterDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class FilterDlg : public wxDialog
+{
+    public:
+    FilterDlg( wxWindow* parent, bool running, bool *newMicInFilter, bool *newSpkOutFilter,
+               wxWindowID id = wxID_ANY, const wxString& title = _("Filter"), 
+               const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize( 800, 630 ), 
+               long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER );
+        ~FilterDlg();
+
+        void    ExchangeData(int inout, bool storePersistent);
+
+    protected:
+        // Handlers for events.
+        void    OnCancel(wxCommandEvent& event);
+        void    OnOK(wxCommandEvent& event);
+        void    OnClose(wxCloseEvent& event);
+        void    OnInitDialog(wxInitDialogEvent& event);
+        void    OnLPCPostFilterDefault(wxCommandEvent& event);
+
+        void    OnBetaScroll(wxScrollEvent& event);
+        void    OnGammaScroll(wxScrollEvent& event);
+        void    OnEnable(wxScrollEvent& event);
+        void    OnBassBoost(wxScrollEvent& event);
+
+        void    OnSpeexppEnable(wxScrollEvent& event);
+
+        void    OnMicInBassFreqScroll(wxScrollEvent& event) { sliderToFreq(&m_MicInBass, true); }
+        void    OnMicInBassGainScroll(wxScrollEvent& event) { sliderToGain(&m_MicInBass, true); }
+        void    OnMicInTrebleFreqScroll(wxScrollEvent& event) { sliderToFreq(&m_MicInTreble, true); }
+        void    OnMicInTrebleGainScroll(wxScrollEvent& event) { sliderToGain(&m_MicInTreble, true); }
+        void    OnMicInMidFreqScroll(wxScrollEvent& event) { sliderToFreq(&m_MicInMid, true); }
+        void    OnMicInMidGainScroll(wxScrollEvent& event) { sliderToGain(&m_MicInMid, true); }
+        void    OnMicInMidQScroll(wxScrollEvent& event) { sliderToQ(&m_MicInMid, true); }
+        void    OnMicInEnable(wxScrollEvent& event);
+        void    OnMicInDefault(wxCommandEvent& event);
+
+        void    OnSpkOutBassFreqScroll(wxScrollEvent& event) { sliderToFreq(&m_SpkOutBass, false); }
+        void    OnSpkOutBassGainScroll(wxScrollEvent& event) { sliderToGain(&m_SpkOutBass, false); }
+        void    OnSpkOutTrebleFreqScroll(wxScrollEvent& event) { sliderToFreq(&m_SpkOutTreble, false); }
+        void    OnSpkOutTrebleGainScroll(wxScrollEvent& event) { sliderToGain(&m_SpkOutTreble, false); }
+        void    OnSpkOutMidFreqScroll(wxScrollEvent& event) { sliderToFreq(&m_SpkOutMid, false); }
+        void    OnSpkOutMidGainScroll(wxScrollEvent& event) { sliderToGain(&m_SpkOutMid, false); }
+        void    OnSpkOutMidQScroll(wxScrollEvent& event) { sliderToQ(&m_SpkOutMid, false); }
+        void    OnSpkOutEnable(wxScrollEvent& event);
+        void    OnSpkOutDefault(wxCommandEvent& event);
+
+        wxStaticText* m_staticText8;
+        wxCheckBox*   m_codec2LPCPostFilterEnable;
+        wxStaticText* m_staticText9;
+        wxCheckBox*   m_codec2LPCPostFilterBassBoost;
+        wxStaticText* m_staticText91;
+        wxSlider*     m_codec2LPCPostFilterBeta;
+        wxStaticText* m_staticTextBeta;
+        wxStaticText* m_staticText911;
+        wxSlider*     m_codec2LPCPostFilterGamma;
+        wxStaticText* m_staticTextGamma;
+        wxButton*     m_LPCPostFilterDefault;
+
+        wxCheckBox*   m_ckboxSpeexpp;
+
+        wxStdDialogButtonSizer* m_sdbSizer5;
+        wxButton*     m_sdbSizer5OK;
+        wxButton*     m_sdbSizer5Cancel;
+        PlotSpectrum* m_MicInFreqRespPlot;
+        PlotSpectrum* m_SpkOutFreqRespPlot;
+        
+        wxCheckBox*   m_MicInEnable;
+        wxButton*     m_MicInDefault;
+        wxCheckBox*   m_SpkOutEnable;
+        wxButton*     m_SpkOutDefault;
+
+        float        *m_MicInMagdB;
+        float        *m_SpkOutMagdB;
+
+     private:
+        bool          m_running;
+        float         m_beta;
+        float         m_gamma;
+
+        void          setBeta(void);  // sets slider and static text from m_beta
+        void          setGamma(void); // sets slider and static text from m_gamma
+        void          setCodec2(void);
+ 
+        void          newEQControl(wxSlider** slider, wxStaticText** value, wxStaticBoxSizer *bs, wxString controlName);
+        EQ            newEQ(wxSizer *bs, wxString eqName, float maxFreqHz, bool enableQ);
+        void          newLPCPFControl(wxSlider **slider, wxStaticText **stValue, wxSizer *sbs, wxString controlName);
+        wxAuiNotebook *m_auiNotebook;
+        void          setFreq(EQ *eq);
+        void          setGain(EQ *eq);
+        void          setQ(EQ *eq);
+        void          sliderToFreq(EQ *eq, bool micIn);
+        void          sliderToGain(EQ *eq, bool micIn);
+        void          sliderToQ(EQ *eq, bool micIn);
+        void          plotFilterSpectrum(EQ *eqBass, EQ *eqMid, EQ* eqTreble, PlotSpectrum* freqRespPlot, float *magdB);
+        void          calcFilterSpectrum(float magdB[], int arc, char *argv[]);
+        void          plotMicInFilterSpectrum(void);
+        void          plotSpkOutFilterSpectrum(void);
+        void          adjRunTimeMicInFilter(void);
+        void          adjRunTimeSpkOutFilter(void);
+
+        EQ            m_MicInBass;
+        EQ            m_MicInMid;
+        EQ            m_MicInTreble;
+
+        EQ            m_SpkOutBass;
+        EQ            m_SpkOutMid;
+        EQ            m_SpkOutTreble;
+
+        float         limit(float value, float min, float max);
+ 
+        bool          *m_newMicInFilter;
+        bool          *m_newSpkOutFilter;
+
+};
+
+#endif // __FILTER_DIALOG__
diff --git a/src/dlg_options.cpp b/src/dlg_options.cpp
new file mode 100644
index 0000000..79b6c87
--- /dev/null
+++ b/src/dlg_options.cpp
@@ -0,0 +1,616 @@
+//==========================================================================
+// Name:            dlg_options.cpp
+// Purpose:         Dialog for controlling misc FreeDV options
+// Date:            May 24 2013
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#include "dlg_options.h"
+
+extern bool                g_modal;
+extern struct freedv      *g_pfreedv;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class OptionsDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+OptionsDlg::OptionsDlg(wxWindow* parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style) : wxDialog(parent, id, title, pos, size, style)
+{
+
+    this->SetSizeHints(wxDefaultSize, wxDefaultSize);
+
+    wxBoxSizer* bSizer30;
+    bSizer30 = new wxBoxSizer(wxVERTICAL);
+
+    //------------------------------
+    // Txt Msg Text Box
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_callSign;
+    wxStaticBox *sb_textMsg = new wxStaticBox(this, wxID_ANY, _("Txt Msg"));
+    sbSizer_callSign = new wxStaticBoxSizer(sb_textMsg, wxVERTICAL);
+
+    m_txtCtrlCallSign = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    m_txtCtrlCallSign->SetToolTip(_("Txt Msg you can send along with Voice"));
+    sbSizer_callSign->Add(m_txtCtrlCallSign, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL|wxEXPAND, 3);
+
+    bSizer30->Add(sbSizer_callSign,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+ 
+    //----------------------------------------------------------------------
+    // Voice Keyer 
+    //----------------------------------------------------------------------
+
+    wxStaticBoxSizer* staticBoxSizer28a = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, _("Voice Keyer")), wxHORIZONTAL);
+
+    wxStaticText *m_staticText28b = new wxStaticText(this, wxID_ANY, _("Wave File: "), wxDefaultPosition, wxDefaultSize, 0);
+    staticBoxSizer28a->Add(m_staticText28b, 0, wxALIGN_CENTER_VERTICAL, 5);    
+    m_txtCtrlVoiceKeyerWaveFile = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(300,-1), 0);
+    m_txtCtrlVoiceKeyerWaveFile->SetToolTip(_("Wave file to play for Voice Keyer"));
+    staticBoxSizer28a->Add(m_txtCtrlVoiceKeyerWaveFile, 0, 0, 5);
+
+    m_buttonChooseVoiceKeyerWaveFile = new wxButton(this, wxID_APPLY, _("Choose"), wxDefaultPosition, wxSize(-1,-1), 0);
+    staticBoxSizer28a->Add(m_buttonChooseVoiceKeyerWaveFile, 0, wxALIGN_CENTER_VERTICAL, 5);
+
+    wxStaticText *m_staticText28c = new wxStaticText(this, wxID_ANY, _("   Rx Pause: "), wxDefaultPosition, wxDefaultSize, 0);
+    staticBoxSizer28a->Add(m_staticText28c, 0, wxALIGN_CENTER_VERTICAL , 5);
+    m_txtCtrlVoiceKeyerRxPause = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(40,-1), 0);
+    m_txtCtrlVoiceKeyerRxPause->SetToolTip(_("How long to wait in Rx mode before repeat"));
+    staticBoxSizer28a->Add(m_txtCtrlVoiceKeyerRxPause, 0, 0, 5);
+
+    wxStaticText *m_staticText28d = new wxStaticText(this, wxID_ANY, _("   Repeats: "), wxDefaultPosition, wxDefaultSize, 0);
+    staticBoxSizer28a->Add(m_staticText28d, 0, wxALIGN_CENTER_VERTICAL, 5);
+    m_txtCtrlVoiceKeyerRepeats = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(40,-1), 0);
+    m_txtCtrlVoiceKeyerRepeats->SetToolTip(_("How long to wait in Rx mode before repeat"));
+    staticBoxSizer28a->Add(m_txtCtrlVoiceKeyerRepeats, 0, 0, 5);
+
+    bSizer30->Add(staticBoxSizer28a,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+#ifdef __WXMSW__
+    //------------------------------
+    // debug console, for WIndows build make console pop up for debug messages
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_console;
+    wxStaticBox *sb_console = new wxStaticBox(this, wxID_ANY, _("Debug"));
+    sbSizer_console = new wxStaticBoxSizer(sb_console, wxHORIZONTAL);
+
+    m_ckboxDebugConsole = new wxCheckBox(this, wxID_ANY, _("Show Console"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_console->Add(m_ckboxDebugConsole, 0, wxALIGN_LEFT, 0);
+
+    bSizer30->Add(sbSizer_console,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+#endif
+
+    //------------------------------
+    // FreeDV 700 Options
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_freedv700;
+    wxStaticBox *sb_freedv700 = new wxStaticBox(this, wxID_ANY, _("FreeDV 700 Options"));
+    sbSizer_freedv700 = new wxStaticBoxSizer(sb_freedv700, wxHORIZONTAL);
+
+    m_ckboxFreeDV700txClip = new wxCheckBox(this, wxID_ANY, _("Clipping"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_freedv700->Add(m_ckboxFreeDV700txClip, 0, wxALIGN_LEFT, 0);
+    m_ckboxFreeDV700Combine = new wxCheckBox(this, wxID_ANY, _("Diversity Combine for plots"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_freedv700->Add(m_ckboxFreeDV700Combine, 0, wxALIGN_LEFT, 0);
+
+    bSizer30->Add(sbSizer_freedv700, 0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    //------------------------------
+    // Half/Full duplex selection
+    //------------------------------
+
+    wxStaticBox *sb_duplex = new wxStaticBox(this, wxID_ANY, _("Half/Full Duplex Operation"));
+    wxStaticBoxSizer* sbSizer_duplex = new wxStaticBoxSizer(sb_duplex, wxHORIZONTAL);
+    m_ckHalfDuplex = new wxCheckBox(this, wxID_ANY, _("Half Duplex"), wxDefaultPosition, wxSize(-1,-1), 0);
+    sbSizer_duplex->Add(m_ckHalfDuplex, 0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL, 5);
+    bSizer30->Add(sbSizer_duplex,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    //------------------------------
+    // Test Frames/Channel simulation check box
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_testFrames;
+    wxStaticBox *sb_testFrames = new wxStaticBox(this, wxID_ANY, _("Testing and Channel Simulation"));
+    sbSizer_testFrames = new wxStaticBoxSizer(sb_testFrames, wxHORIZONTAL);
+
+    m_ckboxTestFrame = new wxCheckBox(this, wxID_ANY, _("Test Frames"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_testFrames->Add(m_ckboxTestFrame, 0, wxALIGN_LEFT, 0);
+
+    m_ckboxChannelNoise = new wxCheckBox(this, wxID_ANY, _("Channel Noise   SNR (dB):"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_testFrames->Add(m_ckboxChannelNoise, 0, wxALIGN_LEFT, 0);
+    m_txtNoiseSNR = new wxTextCtrl(this, wxID_ANY,  wxEmptyString, wxDefaultPosition, wxSize(30,-1), 0, wxTextValidator(wxFILTER_DIGITS));
+    sbSizer_testFrames->Add(m_txtNoiseSNR, 0, wxALIGN_LEFT, 0);
+
+    m_ckboxAttnCarrierEn = new wxCheckBox(this, wxID_ANY, _("Attn Carrier  Carrier:"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_testFrames->Add(m_ckboxAttnCarrierEn, 0, wxALIGN_LEFT, 0);
+    m_txtAttnCarrier = new wxTextCtrl(this, wxID_ANY,  wxEmptyString, wxDefaultPosition, wxSize(30,-1), 0, wxTextValidator(wxFILTER_DIGITS));
+    sbSizer_testFrames->Add(m_txtAttnCarrier, 0, wxALIGN_LEFT, 0);
+
+    bSizer30->Add(sbSizer_testFrames,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    //------------------------------
+    // Interfering tone
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_tone;
+    wxStaticBox *sb_tone = new wxStaticBox(this, wxID_ANY, _("Simulated Interference Tone"));
+    sbSizer_tone = new wxStaticBoxSizer(sb_tone, wxHORIZONTAL);
+
+    m_ckboxTone = new wxCheckBox(this, wxID_ANY, _("Tone   Freq (Hz):"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_tone->Add(m_ckboxTone, 0, wxALIGN_LEFT, 0);
+    m_txtToneFreqHz = new wxTextCtrl(this, wxID_ANY,  "1000", wxDefaultPosition, wxSize(60,-1), 0, wxTextValidator(wxFILTER_DIGITS));
+    sbSizer_tone->Add(m_txtToneFreqHz, 0, wxALIGN_LEFT, 0);
+    wxStaticText *m_staticTextta = new wxStaticText(this, wxID_ANY, _(" Amplitude (pk): "), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_tone->Add(m_staticTextta, 0, wxALIGN_CENTER_VERTICAL, 5);    
+    m_txtToneAmplitude = new wxTextCtrl(this, wxID_ANY,  "1000", wxDefaultPosition, wxSize(60,-1), 0, wxTextValidator(wxFILTER_DIGITS));
+    sbSizer_tone->Add(m_txtToneAmplitude, 0, wxALIGN_LEFT, 0);
+
+    bSizer30->Add(sbSizer_tone,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+#ifdef __EXPERIMENTAL_UDP__
+    //------------------------------
+    // Txt Encoding 
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_encoding = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Text Encoding")), wxHORIZONTAL);
+
+#ifdef SHORT_VARICODE
+    m_rb_textEncoding1 = new wxRadioButton( this, wxID_ANY, wxT("Long varicode"), wxDefaultPosition, wxDefaultSize, 0);
+    m_rb_textEncoding1->SetValue(true);
+    sbSizer_encoding->Add(m_rb_textEncoding1, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb_textEncoding2 = new wxRadioButton( this, wxID_ANY, wxT("Short Varicode"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_encoding->Add(m_rb_textEncoding2, 0, wxALIGN_LEFT|wxALL, 1);
+#endif
+
+    m_ckboxEnableChecksum = new wxCheckBox(this, wxID_ANY, _("Use Checksum on Rx"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_encoding->Add(m_ckboxEnableChecksum, 0, wxALIGN_LEFT, 0);
+
+    bSizer30->Add(sbSizer_encoding,0, wxALL|wxEXPAND, 3);
+ 
+    //------------------------------
+    // Event processing
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_events;
+    wxStaticBox *sb_events = new wxStaticBox(this, wxID_ANY, _("Event Processing"));
+    sbSizer_events = new wxStaticBoxSizer(sb_events, wxVERTICAL);
+
+    // event processing enable and spam timer
+
+    wxStaticBoxSizer* sbSizer_events_top;
+    wxStaticBox* sb_events1 = new wxStaticBox(this, wxID_ANY, _(""));    
+    sbSizer_events_top = new wxStaticBoxSizer(sb_events1, wxHORIZONTAL);
+
+    m_ckbox_events = new wxCheckBox(this, wxID_ANY, _("Enable System Calls    Syscall Spam Timer"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sb_events->SetToolTip(_("Enable processing of events and generation of system calls"));
+    sbSizer_events_top->Add(m_ckbox_events, 0, 0, 5);
+    m_txt_spam_timer = new wxTextCtrl(this, wxID_ANY,  wxEmptyString, wxDefaultPosition, wxSize(40,-1), 0, wxTextValidator(wxFILTER_DIGITS));
+    m_txt_spam_timer->SetToolTip(_("Many matching events can cause a flood of syscalls. Set minimum time (seconds) between syscalls for each event here"));
+    sbSizer_events_top->Add(m_txt_spam_timer, 0, 0, 5);
+    m_rb_spam_timer = new wxRadioButton( this, wxID_ANY, wxT(""), wxDefaultPosition, wxDefaultSize, wxRB_GROUP);
+    m_rb_spam_timer->SetForegroundColour( wxColour(0, 255, 0 ) );
+    sbSizer_events_top->Add(m_rb_spam_timer, 0, 0, 10);
+    sbSizer_events->Add(sbSizer_events_top, 0, 0, 5);
+
+    // list of regexps
+
+    wxStaticBoxSizer* sbSizer_regexp = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Regular Expressions to Process Events")), wxHORIZONTAL);
+    m_txt_events_regexp_match = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200,100), wxTE_MULTILINE);
+    m_txt_events_regexp_match->SetToolTip(_("Enter regular expressions to match events"));
+    sbSizer_regexp->Add(m_txt_events_regexp_match, 1, wxEXPAND, 5);
+    m_txt_events_regexp_replace = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200,100), wxTE_MULTILINE);
+    m_txt_events_regexp_replace->SetToolTip(_("Enter regular expressions to replace events"));
+    sbSizer_regexp->Add(m_txt_events_regexp_replace, 1, wxEXPAND, 5);
+    sbSizer_events->Add(sbSizer_regexp, 1, wxEXPAND, 5);
+
+    // log of events and responses
+
+    wxStaticBoxSizer* sbSizer_event_log = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Log of Events and Responses")), wxVERTICAL);
+    wxBoxSizer* bSizer33 = new wxBoxSizer(wxHORIZONTAL);
+    m_txt_events_in = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200,50), wxTE_MULTILINE | wxTE_READONLY);
+    bSizer33->Add(m_txt_events_in, 1, wxEXPAND, 5);
+    m_txt_events_out = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(200,50), wxTE_MULTILINE | wxTE_READONLY);
+    bSizer33->Add(m_txt_events_out, 1, wxEXPAND, 5);
+    sbSizer_event_log->Add(bSizer33, 1, wxEXPAND, 5);
+    sbSizer_events->Add(sbSizer_event_log, 1, wxEXPAND, 5);
+
+    bSizer30->Add(sbSizer_events,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    //------------------------------
+    // UDP control port
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_udp;
+    wxStaticBox* sb_udp = new wxStaticBox(this, wxID_ANY, _("UDP Control Port"));
+    sbSizer_udp = new wxStaticBoxSizer(sb_udp, wxHORIZONTAL);
+    m_ckbox_udp_enable = new wxCheckBox(this, wxID_ANY, _("Enable UDP Control Port    UDP Port Number:"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sb_udp->SetToolTip(_("Enable control of FreeDV via UDP port"));
+    sbSizer_udp->Add(m_ckbox_udp_enable, 0,  wxALIGN_CENTER_HORIZONTAL, 5);
+    m_txt_udp_port = new wxTextCtrl(this, wxID_ANY,  wxEmptyString, wxDefaultPosition, wxSize(50,-1), 0, wxTextValidator(wxFILTER_DIGITS));
+    sbSizer_udp->Add(m_txt_udp_port, 0, wxALIGN_CENTER_HORIZONTAL, 5);
+
+    bSizer30->Add(sbSizer_udp,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+#endif
+
+    //------------------------------
+    // OK - Cancel - Apply Buttons 
+    //------------------------------
+
+    wxBoxSizer* bSizer31 = new wxBoxSizer(wxHORIZONTAL);
+
+    m_sdbSizer5OK = new wxButton(this, wxID_OK);
+    bSizer31->Add(m_sdbSizer5OK, 0, wxALL, 2);
+
+    m_sdbSizer5Cancel = new wxButton(this, wxID_CANCEL);
+    bSizer31->Add(m_sdbSizer5Cancel, 0, wxALL, 2);
+
+    m_sdbSizer5Apply = new wxButton(this, wxID_APPLY);
+    bSizer31->Add(m_sdbSizer5Apply, 0, wxALL, 2);
+
+    bSizer30->Add(bSizer31, 0, wxALIGN_CENTER, 0);
+
+    this->SetSizer(bSizer30);
+    if ( GetSizer() ) 
+    {
+         GetSizer()->Fit(this);
+    }
+     this->Layout();
+
+    this->Centre(wxBOTH);
+ 
+    // Connect Events -------------------------------------------------------
+
+    this->Connect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(OptionsDlg::OnInitDialog));
+
+    m_sdbSizer5OK->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnOK), NULL, this);
+    m_sdbSizer5Cancel->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnCancel), NULL, this);
+    m_sdbSizer5Apply->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnApply), NULL, this);
+
+    m_ckboxTestFrame->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnTestFrame), NULL, this);
+    m_ckboxChannelNoise->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnChannelNoise), NULL, this);
+    m_ckboxAttnCarrierEn->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnAttnCarrierEn), NULL, this);
+
+    m_ckboxFreeDV700txClip->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnFreeDV700txClip), NULL, this);
+    m_ckboxFreeDV700Combine->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnFreeDV700Combine), NULL, this);
+
+#ifdef __WXMSW__
+    m_ckboxDebugConsole->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnDebugConsole), NULL, this);
+#endif
+
+    m_buttonChooseVoiceKeyerWaveFile->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnChooseVoiceKeyerWaveFile), NULL, this);
+
+    event_in_serial = 0;
+    event_out_serial = 0;
+}
+
+//-------------------------------------------------------------------------
+// ~OptionsDlg()
+//-------------------------------------------------------------------------
+OptionsDlg::~OptionsDlg()
+{
+
+    // Disconnect Events
+
+    this->Disconnect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(OptionsDlg::OnInitDialog));
+
+    m_sdbSizer5OK->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnOK), NULL, this);
+    m_sdbSizer5Cancel->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnCancel), NULL, this);
+    m_sdbSizer5Apply->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnApply), NULL, this);
+
+    m_ckboxTestFrame->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnTestFrame), NULL, this);
+    m_ckboxChannelNoise->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnChannelNoise), NULL, this);
+    m_ckboxAttnCarrierEn->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnAttnCarrierEn), NULL, this);
+
+    m_ckboxFreeDV700txClip->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnFreeDV700txClip), NULL, this);
+    m_ckboxFreeDV700Combine->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnFreeDV700Combine), NULL, this);
+    m_buttonChooseVoiceKeyerWaveFile->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(OptionsDlg::OnChooseVoiceKeyerWaveFile), NULL, this);
+
+#ifdef __WXMSW__
+    m_ckboxDebugConsole->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxScrollEventHandler(OptionsDlg::OnDebugConsole), NULL, this);
+#endif
+}
+
+
+//-------------------------------------------------------------------------
+// ExchangeData()
+//-------------------------------------------------------------------------
+void OptionsDlg::ExchangeData(int inout, bool storePersistent)
+{
+    wxConfigBase *pConfig = wxConfigBase::Get();
+
+    if(inout == EXCHANGE_DATA_IN)
+    {
+        m_txtCtrlCallSign->SetValue(wxGetApp().m_callSign);
+
+        /* Voice Keyer */
+
+        m_txtCtrlVoiceKeyerWaveFile->SetValue(wxGetApp().m_txtVoiceKeyerWaveFile);
+        m_txtCtrlVoiceKeyerRxPause->SetValue(wxString::Format(wxT("%i"), wxGetApp().m_intVoiceKeyerRxPause));
+        m_txtCtrlVoiceKeyerRepeats->SetValue(wxString::Format(wxT("%i"), wxGetApp().m_intVoiceKeyerRepeats));
+
+        m_ckHalfDuplex->SetValue(wxGetApp().m_boolHalfDuplex);
+
+        m_ckboxTestFrame->SetValue(wxGetApp().m_testFrames);
+
+        m_ckboxChannelNoise->SetValue(wxGetApp().m_channel_noise);
+        m_txtNoiseSNR->SetValue(wxString::Format(wxT("%i"),wxGetApp().m_noise_snr));
+
+        m_ckboxTone->SetValue(wxGetApp().m_tone);
+        m_txtToneFreqHz->SetValue(wxString::Format(wxT("%i"),wxGetApp().m_tone_freq_hz));
+        m_txtToneAmplitude->SetValue(wxString::Format(wxT("%i"),wxGetApp().m_tone_amplitude));
+
+        m_ckboxAttnCarrierEn->SetValue(wxGetApp().m_attn_carrier_en);
+        m_txtAttnCarrier->SetValue(wxString::Format(wxT("%i"),wxGetApp().m_attn_carrier));
+
+#ifdef __EXPERIMENTAL_UDP__
+        m_ckbox_events->SetValue(wxGetApp().m_events);
+        m_txt_spam_timer->SetValue(wxString::Format(wxT("%i"),wxGetApp().m_events_spam_timer));
+
+        m_txt_events_regexp_match->SetValue(wxGetApp().m_events_regexp_match);
+        m_txt_events_regexp_replace->SetValue(wxGetApp().m_events_regexp_replace);
+        
+        m_ckbox_udp_enable->SetValue(wxGetApp().m_udp_enable);
+        m_txt_udp_port->SetValue(wxString::Format(wxT("%i"),wxGetApp().m_udp_port));
+
+#ifdef SHORT_VARICODE
+        if (wxGetApp().m_textEncoding == 1)
+            m_rb_textEncoding1->SetValue(true);
+        if (wxGetApp().m_textEncoding == 2)
+            m_rb_textEncoding2->SetValue(true);
+#endif
+        m_ckboxEnableChecksum->SetValue(wxGetApp().m_enable_checksum);
+#endif
+
+        m_ckboxFreeDV700txClip->SetValue(wxGetApp().m_FreeDV700txClip);
+        m_ckboxFreeDV700Combine->SetValue(wxGetApp().m_FreeDV700Combine);
+
+#ifdef __WXMSW__
+        m_ckboxDebugConsole->SetValue(wxGetApp().m_debug_console);
+#endif
+    }
+
+    if(inout == EXCHANGE_DATA_OUT)
+    {
+        wxGetApp().m_callSign = m_txtCtrlCallSign->GetValue();
+
+        wxGetApp().m_boolHalfDuplex = m_ckHalfDuplex->GetValue();
+        pConfig->Write(wxT("/Rig/HalfDuplex"), wxGetApp().m_boolHalfDuplex);
+
+        /* Voice Keyer */
+
+        wxGetApp().m_txtVoiceKeyerWaveFile = m_txtCtrlVoiceKeyerWaveFile->GetValue();
+        pConfig->Write(wxT("/VoiceKeyer/WaveFile"), wxGetApp().m_txtVoiceKeyerWaveFile);
+        long tmp;
+        m_txtCtrlVoiceKeyerRxPause->GetValue().ToLong(&tmp); if (tmp < 0) tmp = 0; wxGetApp().m_intVoiceKeyerRxPause = (int)tmp;
+        pConfig->Write(wxT("/VoiceKeyer/RxPause"), wxGetApp().m_intVoiceKeyerRxPause);
+        m_txtCtrlVoiceKeyerRepeats->GetValue().ToLong(&tmp);
+        if (tmp < 0) tmp = 0; if (tmp > 100) tmp = 100;
+        wxGetApp().m_intVoiceKeyerRepeats = (int)tmp;
+        pConfig->Write(wxT("/VoiceKeyer/Repeats"), wxGetApp().m_intVoiceKeyerRepeats);
+
+        wxGetApp().m_testFrames    = m_ckboxTestFrame->GetValue();
+
+        wxGetApp().m_channel_noise = m_ckboxChannelNoise->GetValue();
+        long noise_snr;
+        m_txtNoiseSNR->GetValue().ToLong(&noise_snr);
+        wxGetApp().m_noise_snr = (int)noise_snr;
+
+        wxGetApp().m_tone    = m_ckboxTone->GetValue();
+        long tone_freq_hz, tone_amplitude;
+        m_txtToneFreqHz->GetValue().ToLong(&tone_freq_hz);
+        wxGetApp().m_tone_freq_hz = (int)tone_freq_hz;
+        m_txtToneAmplitude->GetValue().ToLong(&tone_amplitude);
+        wxGetApp().m_tone_amplitude = (int)tone_amplitude;
+
+        wxGetApp().m_attn_carrier_en = m_ckboxAttnCarrierEn->GetValue();
+        long attn_carrier;
+        m_txtAttnCarrier->GetValue().ToLong(&attn_carrier);
+        wxGetApp().m_attn_carrier = (int)attn_carrier;
+
+#ifdef __EXPERIMENTAL_UDP__
+        wxGetApp().m_events        = m_ckbox_events->GetValue();
+        long spam_timer;
+        m_txt_spam_timer->GetValue().ToLong(&spam_timer);
+        wxGetApp().m_events_spam_timer = (int)spam_timer;
+
+        // make sure regexp lists are terminated by a \n
+
+        if (m_txt_events_regexp_match->GetValue().Last() != '\n') {
+            m_txt_events_regexp_match->SetValue(m_txt_events_regexp_match->GetValue()+'\n');
+        }
+        if (m_txt_events_regexp_replace->GetValue().Last() != '\n') {
+            m_txt_events_regexp_replace->SetValue(m_txt_events_regexp_replace->GetValue()+'\n');
+        }
+        wxGetApp().m_events_regexp_match = m_txt_events_regexp_match->GetValue();
+        wxGetApp().m_events_regexp_replace = m_txt_events_regexp_replace->GetValue();
+ 
+        wxGetApp().m_udp_enable     = m_ckbox_udp_enable->GetValue();
+        long port;
+        m_txt_udp_port->GetValue().ToLong(&port);
+        wxGetApp().m_udp_port       = (int)port;
+
+#ifdef SHORT_VARICODE
+        if (m_rb_textEncoding1->GetValue())
+            wxGetApp().m_textEncoding = 1;
+        if (m_rb_textEncoding2->GetValue())
+            wxGetApp().m_textEncoding = 2;
+#endif
+        wxGetApp().m_enable_checksum = m_ckboxEnableChecksum->GetValue();
+#endif
+
+        wxGetApp().m_FreeDV700txClip = m_ckboxFreeDV700txClip->GetValue();
+        wxGetApp().m_FreeDV700Combine = m_ckboxFreeDV700Combine->GetValue();
+
+#ifdef __WXMSW__
+        wxGetApp().m_debug_console = m_ckboxDebugConsole->GetValue();
+#endif
+
+        if (storePersistent) {
+            pConfig->Write(wxT("/Data/CallSign"), wxGetApp().m_callSign);
+#ifdef SHORT_VARICODE
+            pConfig->Write(wxT("/Data/TextEncoding"), wxGetApp().m_textEncoding);
+#endif
+            pConfig->Write(wxT("/Data/EnableChecksumOnMsgRx"), wxGetApp().m_enable_checksum);
+
+            pConfig->Write(wxT("/Events/enable"), wxGetApp().m_events);
+            pConfig->Write(wxT("/Events/spam_timer"), wxGetApp().m_events_spam_timer);
+            pConfig->Write(wxT("/Events/regexp_match"), wxGetApp().m_events_regexp_match);
+            pConfig->Write(wxT("/Events/regexp_replace"), wxGetApp().m_events_regexp_replace);
+            
+            pConfig->Write(wxT("/UDP/enable"), wxGetApp().m_udp_enable);
+            pConfig->Write(wxT("/UDP/port"),  wxGetApp().m_udp_port);
+
+            pConfig->Write(wxT("/Events/spam_timer"), wxGetApp().m_events_spam_timer);
+
+            pConfig->Write(wxT("/FreeDV700/txClip"), wxGetApp().m_FreeDV700txClip);
+
+            pConfig->Write(wxT("/Noise/noise_snr"),  wxGetApp().m_noise_snr);
+
+#ifdef __WXMSW__
+            pConfig->Write(wxT("/Debug/console"), wxGetApp().m_debug_console);
+#endif
+
+            pConfig->Flush();
+        }
+    }
+    delete wxConfigBase::Set((wxConfigBase *) NULL);
+}
+
+//-------------------------------------------------------------------------
+// OnOK()
+//-------------------------------------------------------------------------
+void OptionsDlg::OnOK(wxCommandEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_OUT, true);
+    //this->EndModal(wxID_OK);
+    g_modal = false;
+    this->Show(false);
+}
+
+//-------------------------------------------------------------------------
+// OnCancel()
+//-------------------------------------------------------------------------
+void OptionsDlg::OnCancel(wxCommandEvent& event)
+{
+    //this->EndModal(wxID_CANCEL);
+    g_modal = false;
+    this->Show(false);
+}
+
+//-------------------------------------------------------------------------
+// OnApply()
+//-------------------------------------------------------------------------
+void OptionsDlg::OnApply(wxCommandEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_OUT, true);
+}
+
+//-------------------------------------------------------------------------
+// OnInitDialog()
+//-------------------------------------------------------------------------
+void OptionsDlg::OnInitDialog(wxInitDialogEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_IN, false);
+}
+
+// immediately change flags rather using ExchangeData() so we can switch on and off at run time
+
+void OptionsDlg::OnTestFrame(wxScrollEvent& event) {
+    wxGetApp().m_testFrames    = m_ckboxTestFrame->GetValue();
+}
+
+void OptionsDlg::OnChannelNoise(wxScrollEvent& event) {
+    wxGetApp().m_channel_noise = m_ckboxChannelNoise->GetValue();
+}
+
+
+void OptionsDlg::OnChooseVoiceKeyerWaveFile(wxCommandEvent& event) {
+     wxFileDialog openFileDialog(
+                                 this,
+                                 wxT("Voice Keyer wave file"),
+                                 wxGetApp().m_txtVoiceKeyerWaveFilePath,
+                                 wxEmptyString,
+                                 wxT("WAV files (*.wav)|*.wav"),
+                                 wxFD_OPEN
+                                 );
+     if(openFileDialog.ShowModal() == wxID_CANCEL) {
+         return;     // the user changed their mind...
+     }
+
+     wxString fileName, extension;
+     wxGetApp().m_txtVoiceKeyerWaveFile = openFileDialog.GetPath();
+     wxFileName::SplitPath(wxGetApp().m_txtVoiceKeyerWaveFile, &wxGetApp().m_txtVoiceKeyerWaveFilePath, &fileName, &extension);
+     m_txtCtrlVoiceKeyerWaveFile->SetValue(wxGetApp().m_txtVoiceKeyerWaveFile);
+}
+
+//  Run time update of carrier amplitude attenuation
+
+void OptionsDlg::OnAttnCarrierEn(wxScrollEvent& event) {
+    long attn_carrier;
+    m_txtAttnCarrier->GetValue().ToLong(&attn_carrier);
+    wxGetApp().m_attn_carrier = (int)attn_carrier;
+
+    /* uncheck -> checked, attenuate selected carrier */
+
+    if (m_ckboxAttnCarrierEn->GetValue() && !wxGetApp().m_attn_carrier_en) {
+        if (freedv_get_mode(g_pfreedv) == FREEDV_MODE_700C) {
+            freedv_set_carrier_ampl(g_pfreedv, wxGetApp().m_attn_carrier, 0.25);
+        } else {
+            wxMessageBox("Carrier attenuation feature only works on 700C", wxT("Warning"), wxOK | wxICON_WARNING, this);
+        }
+    }
+
+    /* checked -> unchecked, reset selected carrier */
+
+    if (!m_ckboxAttnCarrierEn->GetValue() && wxGetApp().m_attn_carrier_en) {
+        if (freedv_get_mode(g_pfreedv) == FREEDV_MODE_700C) {
+            freedv_set_carrier_ampl(g_pfreedv, wxGetApp().m_attn_carrier, 1.0);
+        }
+    }
+        
+    wxGetApp().m_attn_carrier_en = m_ckboxAttnCarrierEn->GetValue();    
+}
+
+void OptionsDlg::OnFreeDV700txClip(wxScrollEvent& event) {
+    wxGetApp().m_FreeDV700txClip = m_ckboxFreeDV700txClip->GetValue();
+}
+
+void OptionsDlg::OnFreeDV700Combine(wxScrollEvent& event) {
+    wxGetApp().m_FreeDV700Combine = m_ckboxFreeDV700Combine->GetValue();
+}
+
+void OptionsDlg::updateEventLog(wxString event_in, wxString event_out) {
+    wxString event_in_with_serial, event_out_with_serial; 
+    event_in_with_serial.Printf(_T("[%d] %s"), event_in_serial++, event_in);
+    event_out_with_serial.Printf(_T("[%d] %s"), event_out_serial++, event_out);
+
+    m_txt_events_in->AppendText(event_in_with_serial+"\n");
+    m_txt_events_out->AppendText(event_out_with_serial+"\n");
+}
+
+
+void OptionsDlg::OnDebugConsole(wxScrollEvent& event) {
+    wxGetApp().m_debug_console = m_ckboxDebugConsole->GetValue();
+#ifdef __WXMSW__
+    // somewhere to send printfs while developing, causes conmsole to pop up on Windows
+    if (wxGetApp().m_debug_console) {
+        int ret = AllocConsole();
+        freopen("CONOUT$", "w", stdout); 
+        freopen("CONOUT$", "w", stderr); 
+        fprintf(stderr, "AllocConsole: %d m_debug_console: %d\n", ret, wxGetApp().m_debug_console);
+    } 
+#endif
+}
diff --git a/src/dlg_options.h b/src/dlg_options.h
new file mode 100644
index 0000000..081448c
--- /dev/null
+++ b/src/dlg_options.h
@@ -0,0 +1,137 @@
+//==========================================================================
+// Name:            dlg_options.h
+// Purpose:         Dialog for controlling misc FreeDV options
+// Created:         Nov 25 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#ifndef __OPTIONS_DIALOG__
+#define __OPTIONS_DIALOG__
+
+#include "fdmdv2_main.h"
+#include "fdmdv2_defines.h"
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class OptionsDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class OptionsDlg : public wxDialog
+{
+    public:
+    OptionsDlg( wxWindow* parent,
+               wxWindowID id = wxID_ANY, const wxString& title = _("Options"), 
+                const wxPoint& pos = wxDefaultPosition, 
+#ifdef __WXMSW__
+                /* we add debug console check box for windows */
+                const wxSize& size = wxSize(600,410), 
+#else
+                const wxSize& size = wxSize(600,380), 
+#endif
+               long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER );
+        ~OptionsDlg();
+
+        void    ExchangeData(int inout, bool storePersistent);
+        void    updateEventLog(wxString event_in, wxString event_out);
+
+        bool    enableEventsChecked() {return m_ckbox_events->GetValue();}
+
+        void SetSpamTimerLight(bool state) {
+
+            // Colours don't work on Windows
+
+            if (state) {
+                m_rb_spam_timer->SetForegroundColour( wxColour( 255,0 , 0 ) ); // red
+                m_rb_spam_timer->SetValue(true);
+            }
+            else {
+                m_rb_spam_timer->SetForegroundColour( wxColour( 0, 255, 0 ) ); // green
+                m_rb_spam_timer->SetValue(false);
+            }
+        }
+
+
+    protected:
+
+        // Handlers for events.
+
+        void    OnOK(wxCommandEvent& event);
+        void    OnCancel(wxCommandEvent& event);
+        void    OnApply(wxCommandEvent& event);
+        void    OnClose(wxCloseEvent& event);
+        void    OnInitDialog(wxInitDialogEvent& event);
+ 
+        void    OnTestFrame(wxScrollEvent& event);
+        void    OnChannelNoise(wxScrollEvent& event);
+        void    OnAttnCarrierEn(wxScrollEvent& event);
+        void    OnFreeDV700txClip(wxScrollEvent& event);
+        void    OnFreeDV700Combine(wxScrollEvent& event);
+        void    OnDebugConsole(wxScrollEvent& event);
+
+        wxTextCtrl   *m_txtCtrlCallSign; // TODO: this should be renamed to tx_txtmsg, and rename all related incl persis strge
+
+        wxCheckBox* m_ckHalfDuplex;
+
+        /* Voice Keyer */
+
+        wxButton     *m_buttonChooseVoiceKeyerWaveFile;
+        wxTextCtrl   *m_txtCtrlVoiceKeyerWaveFile;
+        wxTextCtrl   *m_txtCtrlVoiceKeyerRxPause;
+        wxTextCtrl   *m_txtCtrlVoiceKeyerRepeats;
+
+        /* test frames, other simulated channel impairments */
+
+        wxCheckBox   *m_ckboxTestFrame;
+        wxCheckBox   *m_ckboxChannelNoise;
+        wxTextCtrl   *m_txtNoiseSNR;
+        wxCheckBox   *m_ckboxAttnCarrierEn;
+        wxTextCtrl   *m_txtAttnCarrier;
+
+        wxCheckBox   *m_ckboxTone;
+        wxTextCtrl   *m_txtToneFreqHz;
+        wxTextCtrl   *m_txtToneAmplitude;
+
+        wxCheckBox   *m_ckboxFreeDV700txClip;
+        wxCheckBox   *m_ckboxFreeDV700Combine;
+
+        wxRadioButton *m_rb_textEncoding1;
+        wxRadioButton *m_rb_textEncoding2;
+        wxCheckBox    *m_ckboxEnableChecksum;
+
+        wxCheckBox   *m_ckbox_events;
+        wxTextCtrl   *m_txt_events_regexp_match;
+        wxTextCtrl   *m_txt_events_regexp_replace;
+        wxTextCtrl   *m_txt_events_in;
+        wxTextCtrl   *m_txt_events_out;
+        wxTextCtrl   *m_txt_spam_timer;
+        wxRadioButton *m_rb_spam_timer;
+
+        wxCheckBox   *m_ckbox_udp_enable;
+        wxTextCtrl   *m_txt_udp_port;
+
+        wxButton*     m_sdbSizer5OK;
+        wxButton*     m_sdbSizer5Cancel;
+        wxButton*     m_sdbSizer5Apply;
+
+        wxCheckBox   *m_ckboxDebugConsole;
+
+        unsigned int  event_in_serial, event_out_serial;
+
+        void OnChooseVoiceKeyerWaveFile(wxCommandEvent& event);
+
+     private:
+};
+
+#endif // __OPTIONS_DIALOG__
diff --git a/src/dlg_plugin.cpp b/src/dlg_plugin.cpp
new file mode 100644
index 0000000..68610f4
--- /dev/null
+++ b/src/dlg_plugin.cpp
@@ -0,0 +1,148 @@
+//==========================================================================
+// Name:            dlg_plugin.cpp
+// Purpose:         Subclasses dialog GUI for PlugIn Config. Creates simple 
+//                  wxWidgets dialog GUI to set a few text strings.
+// Date:            Jan 2016
+// Authors:         David Rowe
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#include "dlg_plugin.h"
+#include "fdmdv2_main.h"
+
+#ifdef __WIN32__
+#include <wx/msw/registry.h>
+#endif
+#if defined(__FreeBSD__) || defined(__WXOSX__)
+#include <glob.h>
+#include <string.h>
+#endif
+
+#include <sstream>
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlugInDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PlugInDlg::PlugInDlg(const wxString& title, int numParam, wxString paramName[], wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style) : wxDialog(parent, id, title, pos, size, style)
+{
+    m_name = title;
+    m_numParam = numParam;
+    assert(m_numParam <= PLUGIN_MAX_PARAMS);
+
+    wxBoxSizer* mainSizer = new wxBoxSizer(wxVERTICAL);
+    this->SetSizer(mainSizer);
+
+    int i;
+    for (i=0; i<m_numParam; i++) {
+        m_paramName[i] = paramName[i];
+        wxStaticBoxSizer* staticBoxSizer28a = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, m_paramName[i]), wxVERTICAL);
+        m_txtCtrlParam[i]= new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(300,-1), 0);
+        staticBoxSizer28a->Add(m_txtCtrlParam[i], 0, 0, 5);
+        mainSizer->Add(staticBoxSizer28a, 0, wxEXPAND, 5);
+    }
+
+    //----------------------------------------------------------------------
+    // OK - Cancel - Apply
+    //----------------------------------------------------------------------
+
+    wxBoxSizer* boxSizer12 = new wxBoxSizer(wxHORIZONTAL);
+
+    m_buttonOK = new wxButton(this, wxID_OK, _("OK"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_buttonOK->SetDefault();
+    boxSizer12->Add(m_buttonOK, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM, 5);
+
+    m_buttonCancel = new wxButton(this, wxID_CANCEL, _("Cancel"), wxDefaultPosition, wxSize(-1,-1), 0);
+    boxSizer12->Add(m_buttonCancel, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM, 5);
+
+    mainSizer->Add(boxSizer12, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM|wxALIGN_CENTER_HORIZONTAL, 5);
+
+    if ( GetSizer() ) 
+    {
+         GetSizer()->Fit(this);
+    }
+    Centre(wxBOTH);
+
+    // Connect events
+    this->Connect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(PlugInDlg::OnInitDialog), NULL, this);
+    m_buttonOK->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(PlugInDlg::OnOK), NULL, this);
+    m_buttonCancel->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(PlugInDlg::OnCancel), NULL, this);
+
+}
+
+//-------------------------------------------------------------------------
+// ~PlugInDlg()
+//-------------------------------------------------------------------------
+PlugInDlg::~PlugInDlg()
+{
+    // Disconnect Events
+    this->Disconnect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(PlugInDlg::OnInitDialog), NULL, this);
+    m_buttonOK->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(PlugInDlg::OnOK), NULL, this);
+    m_buttonCancel->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(PlugInDlg::OnCancel), NULL, this);
+}
+
+//-------------------------------------------------------------------------
+// OnInitDialog()
+//-------------------------------------------------------------------------
+void PlugInDlg::OnInitDialog(wxInitDialogEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_IN);
+}
+
+
+//-------------------------------------------------------------------------
+// ExchangeData()
+//-------------------------------------------------------------------------
+void PlugInDlg::ExchangeData(int inout)
+{
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    wxString str;
+    int i;
+    
+    if(inout == EXCHANGE_DATA_IN)
+    {
+        for (i=0; i<m_numParam; i++) {
+            m_txtCtrlParam[i]->SetValue(wxGetApp().m_txtPlugInParam[i]);
+        }
+    }
+    if(inout == EXCHANGE_DATA_OUT)
+    {
+        for (i=0; i<m_numParam; i++) {
+          wxGetApp().m_txtPlugInParam[i] = m_txtCtrlParam[i]->GetValue();
+          wxString configStr = "/" + m_name + "/" + m_paramName[i];
+          pConfig->Write(configStr, wxGetApp().m_txtPlugInParam[i]);
+        }
+        pConfig->Flush();
+    }
+    delete wxConfigBase::Set((wxConfigBase *) NULL);
+}
+
+
+//-------------------------------------------------------------------------
+// OnCancel()
+//-------------------------------------------------------------------------
+void PlugInDlg::OnCancel(wxCommandEvent& event)
+{
+    this->EndModal(wxID_CANCEL);
+}
+
+//-------------------------------------------------------------------------
+// OnClose()
+//-------------------------------------------------------------------------
+void PlugInDlg::OnOK(wxCommandEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_OUT);
+    this->EndModal(wxID_OK);
+}
diff --git a/src/dlg_plugin.h b/src/dlg_plugin.h
new file mode 100644
index 0000000..72efc7b
--- /dev/null
+++ b/src/dlg_plugin.h
@@ -0,0 +1,65 @@
+//==========================================================================
+// Name:            dlg_ptt.h
+// Purpose:         Subclasses dialog GUI for PTT Config.
+//                  
+// Created:         May. 11, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __PLUGIN_DIALOG__
+#define __PLUGIN_DIALOG__
+
+#include "fdmdv2_main.h"
+#include <wx/settings.h>
+#include <wx/xrc/xmlres.h>
+#include <wx/xrc/xh_bmp.h>
+#include <wx/dialog.h>
+#include <wx/sizer.h>
+#include <wx/statbox.h>
+#include <wx/checkbox.h>
+#include <wx/listbox.h>
+#include <wx/radiobut.h>
+#include <wx/button.h>
+#include <wx/spinctrl.h>
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlugInDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class PlugInDlg : public wxDialog
+{
+    public:
+    PlugInDlg(const wxString& title = _("PTT Config"), int numParam = 0, wxString paramNames[]=NULL, wxWindow* parent=NULL, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize(450,300), long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER);
+        virtual ~PlugInDlg();
+        void    ExchangeData(int inout);
+
+    protected:
+        wxString    m_name;
+        int         m_numParam;
+        wxString    m_paramName[PLUGIN_MAX_PARAMS];
+
+        wxTextCtrl* m_txtCtrlParam[PLUGIN_MAX_PARAMS];
+        wxButton*   m_buttonOK;
+        wxButton*   m_buttonCancel;
+
+
+protected:
+
+        void OnOK(wxCommandEvent& event);
+        void OnCancel(wxCommandEvent& event);
+        virtual void OnInitDialog(wxInitDialogEvent& event);
+};
+
+#endif // __PLUGIN_DIALOG__
diff --git a/src/dlg_ptt.cpp b/src/dlg_ptt.cpp
new file mode 100644
index 0000000..1a04c9c
--- /dev/null
+++ b/src/dlg_ptt.cpp
@@ -0,0 +1,570 @@
+//==========================================================================
+// Name:            dlg_ptt.cpp
+// Purpose:         Subclasses dialog GUI for PTT Config. Creates simple 
+//                  wxWidgets dialog GUI to select real/virtual Comm ports.
+// Date:            May 11 2012
+// Authors:         David Rowe, David Witten, Joel Stanley
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include "dlg_ptt.h"
+#include "fdmdv2_main.h"
+
+#ifdef __WIN32__
+#include <wx/msw/registry.h>
+#endif
+#if defined(__FreeBSD__) || defined(__WXOSX__)
+#include <glob.h>
+#include <string.h>
+#endif
+
+#include <sstream>
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class ComPortsDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+ComPortsDlg::ComPortsDlg(wxWindow* parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style) : wxDialog(parent, id, title, pos, size, style)
+{
+    wxBoxSizer* mainSizer = new wxBoxSizer(wxVERTICAL);
+    this->SetSizer(mainSizer);
+    
+    //----------------------------------------------------------------------
+    // Vox tone option
+    //----------------------------------------------------------------------
+
+    wxStaticBoxSizer* staticBoxSizer28 = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, _("VOX PTT Settings")), wxHORIZONTAL);
+    m_ckLeftChannelVoxTone = new wxCheckBox(this, wxID_ANY, _("Left Channel Vox Tone"), wxDefaultPosition, wxSize(-1,-1), 0);
+    staticBoxSizer28->Add(m_ckLeftChannelVoxTone, 0, wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL, 5);
+
+    mainSizer->Add(staticBoxSizer28, 0, wxEXPAND, 5);
+
+    //----------------------------------------------------------------------
+    // Hamlib for CAT PTT
+    //----------------------------------------------------------------------
+
+    wxStaticBoxSizer* staticBoxSizer18 = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, _("Hamlib Settings")), wxHORIZONTAL);
+    wxGridSizer* gridSizerhl = new wxGridSizer(5, 2, 0, 0);
+    staticBoxSizer18->Add(gridSizerhl, 1, wxEXPAND|wxALIGN_LEFT, 5);
+
+    /* Use Hamlib for PTT checkbox. */
+
+    m_ckUseHamlibPTT = new wxCheckBox(this, wxID_ANY, _("Use Hamlib PTT"), wxDefaultPosition, wxSize(-1, -1), 0);
+    m_ckUseHamlibPTT->SetValue(false);
+    gridSizerhl->Add(m_ckUseHamlibPTT, 0, wxALIGN_CENTER_VERTICAL, 0);
+    gridSizerhl->Add(new wxStaticText(this, -1, wxT("")), 0, wxEXPAND);
+
+    /* Hamlib Rig Type combobox. */
+
+    gridSizerhl->Add(new wxStaticText(this, wxID_ANY, _("Rig Model:"), wxDefaultPosition, wxDefaultSize, 0), 
+                      0, wxALIGN_CENTER_VERTICAL | wxALIGN_RIGHT, 20);
+    m_cbRigName = new wxComboBox(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(250, -1), 0, NULL, wxCB_DROPDOWN);
+    wxGetApp().m_hamlib->populateComboBox(m_cbRigName);
+    m_cbRigName->SetSelection(wxGetApp().m_intHamlibRig);
+    gridSizerhl->Add(m_cbRigName, 0, wxALIGN_CENTER_VERTICAL, 0);
+
+    /* Hamlib Serial Port combobox. */
+
+    gridSizerhl->Add(new wxStaticText(this, wxID_ANY, _("Serial Device:"), wxDefaultPosition, wxDefaultSize, 0), 
+                      0, wxALIGN_CENTER_VERTICAL |  wxALIGN_RIGHT, 20);
+    m_cbSerialPort = new wxComboBox(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(140, -1), 0, NULL, wxCB_DROPDOWN);
+    gridSizerhl->Add(m_cbSerialPort, 0, wxALIGN_CENTER_VERTICAL, 0);
+
+    /* Hamlib Serial Rate combobox. */
+
+    gridSizerhl->Add(new wxStaticText(this, wxID_ANY, _("Serial Rate:"), wxDefaultPosition, wxDefaultSize, 0), 
+                      0, wxALIGN_CENTER_VERTICAL | wxALIGN_RIGHT, 20);
+    m_cbSerialRate = new wxComboBox(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(140, -1), 0, NULL, wxCB_DROPDOWN);
+    gridSizerhl->Add(m_cbSerialRate, 0, wxALIGN_CENTER_VERTICAL, 0);
+
+    gridSizerhl->Add(new wxStaticText(this, wxID_ANY, _("Serial Params:"), wxDefaultPosition, wxDefaultSize, 0), 
+                      0, wxALIGN_CENTER_VERTICAL | wxALIGN_RIGHT, 20);
+    m_cbSerialParams = new wxStaticText(this, wxID_ANY, _(""), wxDefaultPosition, wxDefaultSize, 0);
+    gridSizerhl->Add(m_cbSerialParams, 0, wxALIGN_CENTER_VERTICAL, 0);
+
+    mainSizer->Add(staticBoxSizer18, 0, wxEXPAND, 5);
+
+    //----------------------------------------------------------------------
+    // Serial port PTT
+    //----------------------------------------------------------------------
+
+    wxStaticBoxSizer* staticBoxSizer17 = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, _("Serial Port Settings")), wxVERTICAL);
+    mainSizer->Add(staticBoxSizer17, 1, wxEXPAND, 5);
+    wxStaticBoxSizer* staticBoxSizer31 = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, _("PTT Port")), wxVERTICAL);
+    staticBoxSizer17->Add(staticBoxSizer31, 1, wxEXPAND, 5);
+
+#ifdef __WXMSW__
+    m_ckUseSerialPTT = new wxCheckBox(this, wxID_ANY, _("Use Serial Port PTT"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_ckUseSerialPTT->SetValue(false);
+    staticBoxSizer31->Add(m_ckUseSerialPTT, 0, wxALIGN_LEFT, 20);
+
+    wxArrayString m_listCtrlPortsArr;
+    m_listCtrlPorts = new wxListBox(this, wxID_ANY, wxDefaultPosition, wxSize(-1,45), m_listCtrlPortsArr, wxLB_SINGLE | wxLB_SORT);
+    staticBoxSizer31->Add(m_listCtrlPorts, 1, wxALIGN_CENTER, 0);
+#endif
+
+#if defined(__WXOSX__) || defined(__WXGTK__)
+    wxBoxSizer* bSizer83;
+    bSizer83 = new wxBoxSizer(wxHORIZONTAL);
+
+    wxGridSizer* gridSizer200 = new wxGridSizer(1, 3, 0, 0);
+    
+    m_ckUseSerialPTT = new wxCheckBox(this, wxID_ANY, _("Use Serial Port PTT"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_ckUseSerialPTT->SetValue(false);
+    gridSizer200->Add(m_ckUseSerialPTT, 1, wxALIGN_CENTER|wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL, 2);
+
+    m_staticText12 = new wxStaticText(this, wxID_ANY, _("Serial Device:  "), wxDefaultPosition, wxDefaultSize, 0);
+    m_staticText12->Wrap(-1);
+    gridSizer200->Add(m_staticText12, 1,wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL, 2);
+
+    m_cbCtlDevicePath = new wxComboBox(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxSize(140, -1), 0, NULL, wxCB_DROPDOWN);
+    gridSizer200->Add(m_cbCtlDevicePath, 1, wxEXPAND|wxALIGN_CENTER|wxALIGN_RIGHT, 2);
+    
+    bSizer83->Add(gridSizer200, 0, wxALIGN_CENTER_VERTICAL | wxALIGN_LEFT | wxALL, 2);
+    staticBoxSizer31->Add(bSizer83, 1, wxALIGN_CENTER_VERTICAL|wxALL, 1);
+#endif
+
+    wxBoxSizer* boxSizer19 = new wxBoxSizer(wxVERTICAL);
+    staticBoxSizer17->Add(boxSizer19, 1, wxEXPAND, 5);
+    wxStaticBoxSizer* staticBoxSizer16 = new wxStaticBoxSizer( new wxStaticBox(this, wxID_ANY, _("Signal polarity")), wxHORIZONTAL);
+    boxSizer19->Add(staticBoxSizer16, 1, wxEXPAND|wxALIGN_CENTER|wxALIGN_RIGHT, 5);
+
+    wxGridSizer* gridSizer17 = new wxGridSizer(2, 2, 0, 0);
+    staticBoxSizer16->Add(gridSizer17, 1, wxEXPAND|wxALIGN_RIGHT, 5);
+
+    m_rbUseDTR = new wxRadioButton(this, wxID_ANY, _("Use DTR"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_rbUseDTR->SetToolTip(_("Toggle DTR line for PTT"));
+    m_rbUseDTR->SetValue(1);
+    gridSizer17->Add(m_rbUseDTR, 0, wxALIGN_CENTER|wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL, 5);
+
+    m_ckDTRPos = new wxCheckBox(this, wxID_ANY, _("DTR = +V"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_ckDTRPos->SetToolTip(_("Set Polarity of the DTR line"));
+    m_ckDTRPos->SetValue(false);
+    gridSizer17->Add(m_ckDTRPos, 0, wxALIGN_CENTER|wxALIGN_RIGHT, 5);
+
+    m_rbUseRTS = new wxRadioButton(this, wxID_ANY, _("Use RTS"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_rbUseRTS->SetToolTip(_("Toggle the RTS pin for PTT"));
+    m_rbUseRTS->SetValue(1);
+    gridSizer17->Add(m_rbUseRTS, 0, wxALIGN_CENTER|wxALIGN_RIGHT, 5);
+
+    m_ckRTSPos = new wxCheckBox(this, wxID_ANY, _("RTS = +V"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_ckRTSPos->SetValue(false);
+    m_ckRTSPos->SetToolTip(_("Set Polarity of the RTS line"));
+    gridSizer17->Add(m_ckRTSPos, 0, wxALIGN_CENTER|wxALIGN_RIGHT, 5);
+
+    //----------------------------------------------------------------------
+    // OK - Cancel - Apply
+    //----------------------------------------------------------------------
+
+    wxBoxSizer* boxSizer12 = new wxBoxSizer(wxHORIZONTAL);
+
+    m_buttonTest = new wxButton(this, wxID_APPLY, _("Test PTT"), wxDefaultPosition, wxSize(-1,-1), 0);
+    boxSizer12->Add(m_buttonTest, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM, 5);
+
+    m_buttonOK = new wxButton(this, wxID_OK, _("OK"), wxDefaultPosition, wxSize(-1,-1), 0);
+    m_buttonOK->SetDefault();
+    boxSizer12->Add(m_buttonOK, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM, 5);
+
+    m_buttonCancel = new wxButton(this, wxID_CANCEL, _("Cancel"), wxDefaultPosition, wxSize(-1,-1), 0);
+    boxSizer12->Add(m_buttonCancel, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM, 5);
+
+    m_buttonApply = new wxButton(this, wxID_APPLY, _("Apply"), wxDefaultPosition, wxSize(-1,-1), 0);
+    boxSizer12->Add(m_buttonApply, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM, 5);
+
+    mainSizer->Add(boxSizer12, 0, wxLEFT|wxRIGHT|wxTOP|wxBOTTOM|wxALIGN_CENTER_HORIZONTAL, 5);
+
+    if ( GetSizer() ) 
+    {
+         GetSizer()->Fit(this);
+    }
+    Centre(wxBOTH);
+
+    // Connect events
+    this->Connect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(ComPortsDlg::OnInitDialog), NULL, this);
+    m_ckUseHamlibPTT->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(ComPortsDlg::PTTUseHamLibClicked), NULL, this);
+    m_ckUseSerialPTT->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(ComPortsDlg::PTTUseSerialClicked), NULL, this);
+    m_buttonOK->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnOK), NULL, this);
+    m_buttonCancel->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnCancel), NULL, this);
+    m_buttonApply->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnApply), NULL, this);
+    m_buttonTest->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnTest), NULL, this);
+}
+
+//-------------------------------------------------------------------------
+// ~ComPortsDlg()
+//-------------------------------------------------------------------------
+ComPortsDlg::~ComPortsDlg()
+{
+    // Disconnect Events
+    this->Disconnect(wxEVT_INIT_DIALOG, wxInitDialogEventHandler(ComPortsDlg::OnInitDialog), NULL, this);
+    m_ckUseHamlibPTT->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(ComPortsDlg::PTTUseHamLibClicked), NULL, this);
+    m_ckUseSerialPTT->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(ComPortsDlg::PTTUseSerialClicked), NULL, this);
+    m_buttonOK->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnOK), NULL, this);
+    m_buttonCancel->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnCancel), NULL, this);
+    m_buttonApply->Disconnect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnApply), NULL, this);
+    m_buttonTest->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(ComPortsDlg::OnTest), NULL, this);
+}
+
+//-------------------------------------------------------------------------
+// OnInitDialog()
+//-------------------------------------------------------------------------
+void ComPortsDlg::OnInitDialog(wxInitDialogEvent& event)
+{
+    populatePortList();
+    ExchangeData(EXCHANGE_DATA_IN);
+}
+
+//-------------------------------------------------------------------------
+// populatePortList()
+//-------------------------------------------------------------------------
+void ComPortsDlg::populatePortList()
+{
+
+    /* populate Hamlib serial rate combo box */
+
+    wxString serialRates[] = {"default", "300", "1200", "2400", "4800", "9600", "19200", "38400", "57600", "115200"}; 
+    for(int i=0; i<WXSIZEOF(serialRates); i++) {
+        m_cbSerialRate->Append(serialRates[i]);
+    }
+
+#ifdef __WXMSW__
+    m_listCtrlPorts->Clear();
+    m_cbSerialPort->Clear();
+    wxArrayString aStr;
+    wxRegKey key(wxRegKey::HKLM, _T("HARDWARE\\DEVICEMAP\\SERIALCOMM"));
+    if(!key.Exists())
+    {
+        return;
+    }
+    else
+    {
+        // Get the number of subkeys and enumerate them.
+        if(!key.Open(wxRegKey::Read))
+        {
+            return;
+        }    
+        size_t subkeys;
+        size_t values;
+        if(!key.GetKeyInfo(&subkeys, NULL, &values, NULL))
+        {
+            return;
+        }
+        if(!key.HasValues())
+        {
+            return;
+        }
+        wxString key_name;
+        long el = 1;
+        key.GetFirstValue(key_name, el);
+        wxString valType;
+        wxString key_data;
+        for(unsigned int i = 0; i < values; i++)
+        {
+            key.QueryValue(key_name, key_data);
+            //wxPrintf("Value:  %s Data: %s\n", key_name, key_data);
+            aStr.Add(key_data, 1);
+            key.GetNextValue(key_name, el);
+        }
+    }
+    m_listCtrlPorts->Append(aStr);
+    m_cbSerialPort->Append(aStr);
+#endif
+#if defined(__WXGTK__) || defined(__WXOSX__)
+    m_cbSerialPort->Clear();
+    m_cbCtlDevicePath->Clear();
+#if defined(__FreeBSD__) || defined(__WXOSX__)
+	glob_t	gl;
+#ifdef __FreeBSD__
+	if(glob("/dev/tty*", GLOB_MARK, NULL, &gl)==0) {
+#else
+	if(glob("/dev/tty.*", GLOB_MARK, NULL, &gl)==0) {
+#endif
+		for(unsigned int i=0; i<gl.gl_pathc; i++) {
+			if(gl.gl_pathv[i][strlen(gl.gl_pathv[i])-1]=='/')
+				continue;
+				
+			/* Exclude pseudo TTYs */
+			if(gl.gl_pathv[i][8] >= 'l' && gl.gl_pathv[i][8] <= 's')
+				continue;
+			if(gl.gl_pathv[i][8] >= 'L' && gl.gl_pathv[i][8] <= 'S')
+				continue;
+
+			/* Exclude virtual TTYs */
+			if(gl.gl_pathv[i][8] == 'v')
+				continue;
+
+			/* Exclude initial-state and lock-state devices */
+#ifndef __WXOSX__
+			if(strchr(gl.gl_pathv[i], '.') != NULL)
+				continue;
+#endif
+
+			m_cbSerialPort->Append(gl.gl_pathv[i]);
+			m_cbCtlDevicePath->Append(gl.gl_pathv[i]);
+		}
+		globfree(&gl);
+	}
+#else
+    /* TODO(Joel): http://stackoverflow.com/questions/2530096/how-to-find-all-serial-devices-ttys-ttyusb-on-linux-without-opening-them */
+    m_cbSerialPort->Append("/dev/ttyUSB0");
+    m_cbSerialPort->Append("/dev/ttyUSB1");
+    m_cbSerialPort->Append("/dev/ttyS0");
+    m_cbSerialPort->Append("/dev/ttyS1");
+
+    m_cbCtlDevicePath->Clear();
+    m_cbCtlDevicePath->Append("/dev/ttyUSB0");
+    m_cbCtlDevicePath->Append("/dev/ttyUSB1");
+    m_cbCtlDevicePath->Append("/dev/ttyS0");
+    m_cbCtlDevicePath->Append("/dev/ttyS1");
+#endif
+#endif
+
+
+}
+
+//-------------------------------------------------------------------------
+// ExchangeData()
+//-------------------------------------------------------------------------
+void ComPortsDlg::ExchangeData(int inout)
+{
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    wxString str;
+    
+    if(inout == EXCHANGE_DATA_IN) {
+        m_ckLeftChannelVoxTone->SetValue(wxGetApp().m_leftChannelVoxTone);
+
+        /* Hamlib */
+
+        m_ckUseHamlibPTT->SetValue(wxGetApp().m_boolHamlibUseForPTT);
+        m_cbRigName->SetSelection(wxGetApp().m_intHamlibRig);
+        m_cbSerialPort->SetValue(wxGetApp().m_strHamlibSerialPort);
+
+        if (wxGetApp().m_intHamlibSerialRate == 0) {
+            m_cbSerialRate->SetSelection(0);
+        } else {
+            m_cbSerialRate->SetValue(wxString::Format(wxT("%i"), wxGetApp().m_intHamlibSerialRate));
+        }
+
+        /* Serial PTT */
+
+        m_ckUseSerialPTT->SetValue(wxGetApp().m_boolUseSerialPTT);
+        str = wxGetApp().m_strRigCtrlPort;
+#ifdef __WXMSW__
+        m_listCtrlPorts->SetStringSelection(str);
+#endif
+#if defined(__WXOSX__) || defined(__WXGTK__)
+        m_cbCtlDevicePath->SetValue(str);
+#endif
+        m_rbUseRTS->SetValue(wxGetApp().m_boolUseRTS);
+        m_ckRTSPos->SetValue(wxGetApp().m_boolRTSPos);
+        m_rbUseDTR->SetValue(wxGetApp().m_boolUseDTR);
+        m_ckDTRPos->SetValue(wxGetApp().m_boolDTRPos);
+    }
+
+    if (inout == EXCHANGE_DATA_OUT) {
+        wxGetApp().m_leftChannelVoxTone = m_ckLeftChannelVoxTone->GetValue();
+        pConfig->Write(wxT("/Rig/leftChannelVoxTone"), wxGetApp().m_leftChannelVoxTone);
+
+        /* Hamlib settings. */
+
+        wxGetApp().m_boolHamlibUseForPTT = m_ckUseHamlibPTT->GetValue();
+        wxGetApp().m_intHamlibRig = m_cbRigName->GetSelection();
+        wxGetApp().m_strHamlibSerialPort = m_cbSerialPort->GetValue();
+
+        wxString s = m_cbSerialRate->GetValue();
+        if (s == "default") {
+            wxGetApp().m_intHamlibSerialRate = 0;
+        } else {
+            long tmp;
+            m_cbSerialRate->GetValue().ToLong(&tmp); 
+            wxGetApp().m_intHamlibSerialRate = tmp;
+        }
+        fprintf(stderr, "serial rate: %d\n", wxGetApp().m_intHamlibSerialRate);
+
+        pConfig->Write(wxT("/Hamlib/UseForPTT"), wxGetApp().m_boolHamlibUseForPTT);
+        pConfig->Write(wxT("/Hamlib/RigName"), wxGetApp().m_intHamlibRig);
+        pConfig->Write(wxT("/Hamlib/SerialPort"), wxGetApp().m_strHamlibSerialPort);
+        pConfig->Write(wxT("/Hamlib/SerialRate"), wxGetApp().m_intHamlibSerialRate);
+
+        /* Serial settings */
+
+        wxGetApp().m_boolUseSerialPTT           = m_ckUseSerialPTT->IsChecked();
+#ifdef __WXMSW__
+        wxGetApp().m_strRigCtrlPort             = m_listCtrlPorts->GetStringSelection();
+#endif
+#if defined(__WXGTK__) || defined(__WXOSX__)
+        wxGetApp().m_strRigCtrlPort             = m_cbCtlDevicePath->GetValue();
+#endif
+        wxGetApp().m_boolUseRTS                 = m_rbUseRTS->GetValue();
+        wxGetApp().m_boolRTSPos                 = m_ckRTSPos->IsChecked();
+        wxGetApp().m_boolUseDTR                 = m_rbUseDTR->GetValue();
+        wxGetApp().m_boolDTRPos                 = m_ckDTRPos->IsChecked();
+        
+        pConfig->Write(wxT("/Rig/UseSerialPTT"),    wxGetApp().m_boolUseSerialPTT);
+        pConfig->Write(wxT("/Rig/Port"),            wxGetApp().m_strRigCtrlPort); 
+        pConfig->Write(wxT("/Rig/UseRTS"),          wxGetApp().m_boolUseRTS);
+        pConfig->Write(wxT("/Rig/RTSPolarity"),     wxGetApp().m_boolRTSPos);
+        pConfig->Write(wxT("/Rig/UseDTR"),          wxGetApp().m_boolUseDTR);
+        pConfig->Write(wxT("/Rig/DTRPolarity"),     wxGetApp().m_boolDTRPos);
+
+        pConfig->Flush();
+    }
+    delete wxConfigBase::Set((wxConfigBase *) NULL);
+}
+
+//-------------------------------------------------------------------------
+// PTTUseHamLibClicked()
+//-------------------------------------------------------------------------
+void ComPortsDlg::PTTUseHamLibClicked(wxCommandEvent& event)
+{
+    m_ckUseSerialPTT->SetValue(false);
+}
+
+
+/* Attempt to toggle PTT for 1 second */
+
+void ComPortsDlg::OnTest(wxCommandEvent& event) {
+
+    /* Tone PTT */
+
+    if (m_ckLeftChannelVoxTone->GetValue()) {
+        wxMessageBox("Testing of tone based PTT not supported; try PTT after pressing Start on main window", 
+                     wxT("Error"), wxOK | wxICON_ERROR, this);
+    }
+
+    /* Hamlib PTT */
+
+    if (m_ckUseHamlibPTT->GetValue()) {
+
+        // set up current hamlib config from GUI
+
+        int rig = m_cbRigName->GetSelection();
+        wxString port = m_cbSerialPort->GetValue();
+        wxString s = m_cbSerialRate->GetValue();
+        int serial_rate;
+        if (s == "default") {
+            serial_rate = 0;
+        } else {
+            long tmp;
+            m_cbSerialRate->GetValue().ToLong(&tmp); 
+            serial_rate = tmp;
+        }
+
+        // display serial params
+
+        fprintf(stderr, "serial rate: %d\n", serial_rate);
+
+        // try to open rig
+
+        Hamlib *hamlib = wxGetApp().m_hamlib; 
+        bool status = hamlib->connect(rig, port.mb_str(wxConvUTF8), serial_rate);
+        if (status == false) {
+            wxMessageBox("Couldn't connect to Radio with hamlib", wxT("Error"), wxOK | wxICON_ERROR, this);
+            return;
+        }
+        else {
+            wxString hamlib_serial_config;
+            hamlib_serial_config.sprintf(" %d, %d, %d", 
+                                         hamlib->get_serial_rate(),
+                                         hamlib->get_data_bits(),
+                                         hamlib->get_stop_bits());
+            m_cbSerialParams->SetLabel(hamlib_serial_config);
+       }
+
+        // toggle PTT
+
+        wxString hamlibError;
+        if (hamlib->ptt(true, hamlibError) == false) {
+            wxMessageBox(wxString("Hamlib PTT Error: ") + hamlibError, wxT("Error"), wxOK | wxICON_ERROR, this);
+            return;
+        }
+
+        wxSleep(1);
+
+        if (hamlib->ptt(false, hamlibError) == false) {
+            wxMessageBox(wxString("Hamlib PTT Error: ") + hamlibError, wxT("Error"), wxOK | wxICON_ERROR, this);
+        }
+    }
+
+    /* Serial PTT */
+
+    if (m_ckUseSerialPTT->IsChecked()) {
+        Serialport *serialport = wxGetApp().m_serialport; 
+        
+        wxString ctrlport;
+#ifdef __WXMSW__
+        ctrlport = m_listCtrlPorts->GetStringSelection();
+#endif
+#if defined(__WXGTK__) || defined(__WXOSX__)
+        ctrlport = m_cbCtlDevicePath->GetValue();
+#endif
+        fprintf(stderr, "opening serial port\n");
+
+        bool success = serialport->openport(ctrlport.c_str(),
+                                            m_rbUseRTS->GetValue(),
+                                            m_ckRTSPos->IsChecked(),
+                                            m_rbUseDTR->GetValue(),
+                                            m_ckDTRPos->IsChecked());
+
+        fprintf(stderr, "serial port open\n");
+
+        if (!success) {
+            wxMessageBox("Couldn't open serial port", wxT("Error"), wxOK | wxICON_ERROR, this);
+        }
+
+        // assert PTT port for 1 sec
+
+        serialport->ptt(true);
+        wxSleep(1);
+        serialport->ptt(false);
+
+        fprintf(stderr, "closing serial port\n");
+        serialport->closeport();
+        fprintf(stderr, "serial port closed\n");
+    }
+    
+}
+
+
+//-------------------------------------------------------------------------
+// PTTUseSerialClicked()
+//-------------------------------------------------------------------------
+void ComPortsDlg::PTTUseSerialClicked(wxCommandEvent& event)
+{
+    m_ckUseHamlibPTT->SetValue(false);
+}
+
+//-------------------------------------------------------------------------
+// OnApply()
+//-------------------------------------------------------------------------
+void ComPortsDlg::OnApply(wxCommandEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_OUT);
+}
+
+//-------------------------------------------------------------------------
+// OnCancel()
+//-------------------------------------------------------------------------
+void ComPortsDlg::OnCancel(wxCommandEvent& event)
+{
+    this->EndModal(wxID_CANCEL);
+}
+
+//-------------------------------------------------------------------------
+// OnClose()
+//-------------------------------------------------------------------------
+void ComPortsDlg::OnOK(wxCommandEvent& event)
+{
+    ExchangeData(EXCHANGE_DATA_OUT);
+    this->EndModal(wxID_OK);
+}
diff --git a/src/dlg_ptt.h b/src/dlg_ptt.h
new file mode 100644
index 0000000..5a35c3b
--- /dev/null
+++ b/src/dlg_ptt.h
@@ -0,0 +1,95 @@
+//==========================================================================
+// Name:            dlg_ptt.h
+// Purpose:         Subclasses dialog GUI for PTT Config.
+//                  
+// Created:         May. 11, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __COMPORTS_DIALOG__
+#define __COMPORTS_DIALOG__
+
+#include "fdmdv2_main.h"
+#include "hamlib.h"
+#include <wx/settings.h>
+#include <wx/xrc/xmlres.h>
+#include <wx/xrc/xh_bmp.h>
+#include <wx/dialog.h>
+#include <wx/sizer.h>
+#include <wx/statbox.h>
+#include <wx/checkbox.h>
+#include <wx/listbox.h>
+#include <wx/radiobut.h>
+#include <wx/button.h>
+#include <wx/spinctrl.h>
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class ComPortsDlg
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class ComPortsDlg : public wxDialog
+{
+     public:
+        ComPortsDlg(wxWindow* parent, wxWindowID id = wxID_ANY, const wxString& title = _("PTT Config"), const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize(450,300), long style = wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER);
+        virtual ~ComPortsDlg();
+        void    ExchangeData(int inout);
+
+    protected:
+        wxCheckBox* m_ckLeftChannelVoxTone;
+
+        /* Hamlib settings.*/
+
+        wxCheckBox *m_ckUseHamlibPTT;
+        wxComboBox *m_cbRigName;
+        wxComboBox *m_cbSerialPort;
+        wxComboBox *m_cbSerialRate;
+        wxStaticText  *m_cbSerialParams;
+        Hamlib *m_hamlib;
+
+        /* Serial Settings */
+
+        wxListBox     *m_listCtrlPorts;
+        wxCheckBox    *m_ckUseSerialPTT;
+        wxStaticText  *m_staticText12;
+        wxComboBox    *m_cbCtlDevicePath;
+        wxRadioButton *m_rbUseDTR;
+        wxCheckBox    *m_ckRTSPos;
+        wxRadioButton *m_rbUseRTS;
+        wxCheckBox    *m_ckDTRPos;
+
+        /* Test - Ok - Cancel - Apply */
+
+        wxButton* m_buttonTest;
+        wxButton* m_buttonOK;
+        wxButton* m_buttonCancel;
+        wxButton* m_buttonApply;
+
+
+protected:
+        void populatePortList();
+
+        void PTTUseHamLibClicked(wxCommandEvent& event);
+        void PTTUseSerialClicked(wxCommandEvent& event);
+
+        void OnTest(wxCommandEvent& event);
+
+        void OnOK(wxCommandEvent& event);
+        void OnCancel(wxCommandEvent& event);
+        void OnApply(wxCommandEvent& event);
+        virtual void OnInitDialog(wxInitDialogEvent& event);
+    
+};
+
+#endif // __COMPORTS_DIALOG__
diff --git a/src/fdmdv2_defines.h b/src/fdmdv2_defines.h
new file mode 100644
index 0000000..a687889
--- /dev/null
+++ b/src/fdmdv2_defines.h
@@ -0,0 +1,106 @@
+//==========================================================================
+// Name:            fdmdv2_defines.h
+// Purpose:         Definitions used by plots derived from fdmdv2_plot class.
+// Created:         August 27, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __FDMDV2_DEFINES__
+#define __FDMDV2_DEFINES__
+
+#include "wx/wx.h"
+#include "freedv_api.h"
+#include "modem_stats.h"
+
+// Spectrogram and Waterfall
+
+#define MIN_MAG_DB        -40.0     // min of spectrogram/waterfall magnitude axis
+#define MAX_MAG_DB          0.0     // max of spectrogram/waterfall magnitude axis
+#define STEP_MAG_DB         5.0     // magnitude axis step
+#define BETA                0.95    // constant for time averaging spectrum data
+#define MIN_F_HZ            0       // min freq on Waterfall and Spectrum
+#define MAX_F_HZ            3000    // max freq on Waterfall and Spectrum
+#define STEP_F_HZ           500     // major (e.g. text legend) freq step on Waterfall and Spectrum graticule
+#define STEP_MINOR_F_HZ     100     // minor (ticks) freq step on Waterfall and Spectrum graticule
+#define WATERFALL_SECS_Y    30      // number of seconds respresented by y axis of waterfall
+#define WATERFALL_SECS_STEP 5       // graticule y axis steps of waterfall
+#define DT                  0.1     // time between real time graphing updates
+#define FS                  8000    // FDMDV modem sample rate
+
+// Scatter diagram 
+
+#define SCATTER_MEM_SECS    10
+// (symbols/frame)/(graphics update period) = symbols/s sent to scatter memory
+// memory (symbols) = secs of memory * symbols/sec
+#define SCATTER_MEM_SYMS_MAX    ((int)(SCATTER_MEM_SECS*((MODEM_STATS_NC_MAX+1)/DT)))
+#define SCATTER_EYE_MEM_ROWS    ((int)(SCATTER_MEM_SECS/DT))
+
+// Waveform plotting constants
+
+#define WAVEFORM_PLOT_FS    400                            // sample rate (points/s) of waveform plotted to screen
+#define WAVEFORM_PLOT_TIME  5                              // length or entire waveform on screen
+#define WAVEFORM_PLOT_BUF   ((int)(DT*WAVEFORM_PLOT_FS))   // number of new samples we plot per DT
+
+// sample rate I/O & conversion constants
+
+#define MAX_FPB             8096                           // maximum value of portAudio framesPerBuffer
+#define PA_FPB              1024                           // nominal value of portAudio framesPerBuffer
+#define SAMPLE_RATE         48000                          // 48 kHz sampling rate rec. as we can trust accuracy of sound card
+#define N8                  160                            // processing buffer size at 8 kHz
+#define MEM8                (FDMDV_OS_TAPS/FDMDV_OS)
+#define N48                 (N8*SAMPLE_RATE/FS)            // processing buffer size at 48 kHz
+#define NUM_CHANNELS        2                              // I think most sound cards prefer stereo we will convert to mono
+#define VOX_TONE_FREQ       1000.0                         // optional left channel vox tone freq
+#define VOX_TONE_AMP        30000                          // optional left channel vox tone amp
+
+#define MAX_BITS_PER_CODEC_FRAME 64                            // 1600 bit/s mode
+#define MAX_BYTES_PER_CODEC_FRAME (MAX_BITS_PER_CODEC_FRAME/8)
+#define MAX_BITS_PER_FDMDV_FRAME 40                            // 2000 bit/s mode
+
+// Squelch
+#define SQ_DEFAULT_SNR       2.0
+
+// Level Gauge
+#define FROM_RADIO_MAX       0.8
+#define FROM_MIC_MAX         0.8
+#define LEVEL_BETA           0.99
+
+// SNR
+#define SNRSLOW_BETA        0.5                           // time constant for slow SNR for display
+
+// Text messaging Data
+#define MAX_CALLSIGN         80
+#define MAX_EVENT_LOG        10
+#define MAX_EVENT_RULES      100
+   
+enum
+{
+    ID_ROTATE_LEFT = wxID_HIGHEST + 1,
+    ID_ROTATE_RIGHT,
+    ID_RESIZE,
+    ID_PAINT_BG
+};
+
+// Codec 2 LPC Post Filter defaults, from codec-dev/src/quantise.c
+
+#define CODEC2_LPC_PF_GAMMA 0.5
+#define CODEC2_LPC_PF_BETA  0.2
+
+// PlugIns ...
+
+#define PLUGIN_MAX_PARAMS 4
+
+#endif  //__FDMDV2_DEFINES__
diff --git a/src/fdmdv2_main.cpp b/src/fdmdv2_main.cpp
new file mode 100644
index 0000000..506406c
--- /dev/null
+++ b/src/fdmdv2_main.cpp
@@ -0,0 +1,4042 @@
+//==========================================================================
+// Name:            fdmdv2_main.cpp
+//
+// Purpose:         FreeDV main()
+// Created:         Apr. 9, 2012
+// Authors:         David Rowe, David Witten
+//
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#include "fdmdv2_main.h"
+
+#define wxUSE_FILEDLG   1
+#define wxUSE_LIBPNG    1
+#define wxUSE_LIBJPEG   1
+#define wxUSE_GIF       1
+#define wxUSE_PCX       1
+#define wxUSE_LIBTIFF   1
+
+//-------------------------------------------------------------------
+// Bunch of globals used for communication with sound card call
+// back functions
+// ------------------------------------------------------------------
+
+int g_in, g_out;
+
+// Global Codec2 & modem states - just one reqd for tx & rx
+int                 g_Nc;
+int                 g_mode;
+struct freedv      *g_pfreedv;
+struct MODEM_STATS  g_stats;
+float               g_pwr_scale;
+int                 g_clip;
+
+// test Frames
+int                 g_testFrames;
+int                 g_test_frame_sync_state;
+int                 g_test_frame_count;
+int                 g_channel_noise;
+int                 g_resyncs;
+float               g_sig_pwr_av = 0.0;
+struct FIFO        *g_error_pattern_fifo;
+short              *g_error_hist, *g_error_histn;
+float               g_tone_phase;
+
+// time averaged magnitude spectrum used for waterfall and spectrum display
+float               g_avmag[MODEM_STATS_NSPEC];
+
+// GUI controls that affect rx and tx processes
+int   g_SquelchActive;
+float g_SquelchLevel;
+int   g_analog;
+int   g_split;
+int   g_tx;
+float g_snr;
+bool  g_half_duplex;
+bool  g_modal;
+
+// sending and receiving Call Sign data
+struct FIFO         *g_txDataInFifo;
+struct FIFO         *g_rxDataOutFifo;
+
+// tx/rx processing states
+int                 g_State, g_prev_State;
+paCallBackData     *g_rxUserdata;
+
+// FIFOs used for plotting waveforms
+struct FIFO        *g_plotDemodInFifo;
+struct FIFO        *g_plotSpeechOutFifo;
+struct FIFO        *g_plotSpeechInFifo;
+
+// Soundcard config
+int                 g_nSoundCards;
+int                 g_soundCard1InDeviceNum;
+int                 g_soundCard1OutDeviceNum;
+int                 g_soundCard1SampleRate;
+int                 g_soundCard2InDeviceNum;
+int                 g_soundCard2OutDeviceNum;
+int                 g_soundCard2SampleRate;
+
+// playing and recording from sound files
+
+SNDFILE            *g_sfPlayFile;
+bool                g_playFileToMicIn;
+bool                g_loopPlayFileToMicIn;
+int                 g_playFileToMicInEventId;
+
+SNDFILE            *g_sfRecFile;
+bool                g_recFileFromRadio;
+unsigned int        g_recFromRadioSamples;
+int                 g_recFileFromRadioEventId;
+
+SNDFILE            *g_sfPlayFileFromRadio;
+bool                g_playFileFromRadio;
+int                 g_sfFs;
+bool                g_loopPlayFileFromRadio;
+int                 g_playFileFromRadioEventId;
+float               g_blink;
+
+wxWindow           *g_parent;
+
+// Click to tune rx and tx frequency offset states
+float               g_RxFreqOffsetHz;
+COMP                g_RxFreqOffsetPhaseRect;
+float               g_TxFreqOffsetHz;
+COMP                g_TxFreqOffsetPhaseRect;
+
+// experimental mutex to make sound card callbacks mutually exclusive
+// TODO: review code and see if we need this any more, as fifos should
+// now be thread safe
+
+wxMutex g_mutexProtectingCallbackData;
+
+// Speex pre-processor states
+
+SpeexPreprocessState *g_speex_st;
+
+// WxWidgets - initialize the application
+IMPLEMENT_APP(MainApp);
+
+//FILE *ftest;
+FILE *g_logfile;
+
+//-------------------------------------------------------------------------
+// OnInit()
+//-------------------------------------------------------------------------
+bool MainApp::OnInit()
+{
+    if(!wxApp::OnInit())
+    {
+        return false;
+    }
+    SetVendorName(wxT("CODEC2-Project"));
+    SetAppName(wxT("FreeDV"));      // not needed, it's the default value
+
+#ifdef FILE_RATHER_THAN_REGISTRY
+    // Force use of file-based configuration persistance on Windows platforma
+    wxConfig *pConfig = new wxConfig();
+    wxFileConfig *pFConfig = new wxFileConfig(wxT("FreeDV"), wxT("CODEC2-Project"), wxT("FreeDV.conf"), wxT("FreeDV.conf"),  wxCONFIG_USE_LOCAL_FILE | wxCONFIG_USE_RELATIVE_PATH);
+    pConfig->Set(pFConfig);
+    pConfig->SetRecordDefaults();
+#else
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    pConfig->SetRecordDefaults();
+#endif
+
+    m_rTopWindow = wxRect(0, 0, 0, 0);
+    m_strRxInAudio.Empty();
+    m_strRxOutAudio.Empty();
+    m_textVoiceInput.Empty();
+    m_textVoiceOutput.Empty();
+    m_strSampleRate.Empty();
+    m_strBitrate.Empty();
+
+    // Look for Plug In
+
+    m_plugIn = false;
+    #ifdef __WXMSW__
+    wchar_t dll_path[] = L"afreedvplugin.dll";
+    m_plugInHandle = LoadLibrary(dll_path);
+    #else
+    m_plugInHandle = dlopen("afreedvplugin.so", RTLD_LAZY);
+    #endif
+    
+    if (m_plugInHandle) {
+        printf("plugin: .so found\n");
+        
+        // lets get some information abt the plugIn
+
+        void (*plugin_namefp)(char s[]);
+        void *(*plugin_openfp)(char *param_names[], int *nparams, int (*aplugin_get_persistant)(char *, char *));
+
+        #ifdef __WXMSW__
+        plugin_namefp = (void (*)(char*))GetProcAddress((HMODULE)m_plugInHandle, "plugin_name");
+        plugin_openfp = (void* (*)(char**,int *, int (*)(char *, char *)))GetProcAddress((HMODULE)m_plugInHandle, "plugin_open");
+        m_plugin_startfp = (void (*)(void *))GetProcAddress((HMODULE)m_plugInHandle, "plugin_start");
+        m_plugin_stopfp = (void (*)(void *))GetProcAddress((HMODULE)m_plugInHandle, "plugin_stop");
+        m_plugin_rx_samplesfp = (void (*)(void *, short *, int))GetProcAddress((HMODULE)m_plugInHandle, "plugin_rx_samples");
+        #else
+        plugin_namefp = (void (*)(char*))dlsym(m_plugInHandle, "plugin_name");
+        plugin_openfp = (void* (*)(char**,int *, int (*)(char *, char *)))dlsym(m_plugInHandle, "plugin_open");
+        m_plugin_startfp = (void (*)(void *))dlsym(m_plugInHandle, "plugin_start");
+        m_plugin_stopfp = (void (*)(void *))dlsym(m_plugInHandle, "plugin_stop");
+        m_plugin_rx_samplesfp = (void (*)(void *, short *, int))dlsym(m_plugInHandle, "plugin_rx_samples");
+        #endif
+        
+        if ((plugin_namefp != NULL) && (plugin_openfp != NULL)) {
+
+            char s[256];
+            m_plugIn = true;
+            (plugin_namefp)(s);
+            fprintf(stderr, "plugin name: %s\n", s);
+            m_plugInName = s;
+
+            char param_name1[80], param_name2[80];
+            char *param_names[2] = {param_name1, param_name2};
+            int  nparams, i;
+            m_plugInStates = (plugin_openfp)(param_names, &nparams, plugin_get_persistant);
+            m_numPlugInParam = nparams;
+            for(i=0; i<nparams; i++) {
+                m_plugInParamName[i] = param_names[i];
+                wxString configStr = "/" + m_plugInName + "/" + m_plugInParamName[i];
+                m_txtPlugInParam[i] = pConfig->Read(configStr, wxT(""));
+                //fprintf(stderr, "  plugin param name[%d]: %s\n", i, param_names[i]);
+                fprintf(stderr, "  plugin param name[%d]: %s values: %s\n", i, m_plugInParamName[i].mb_str().data(), m_txtPlugInParam[i].mb_str().data());
+            }
+        }
+        
+        else {
+            fprintf(stderr, "plugin: fps not found...\n");           
+        }
+    }
+    else {
+        fprintf(stderr, "plugin not found...\n");           
+    }
+
+    // Create the main application window
+
+    frame = new MainFrame(m_plugInName, NULL);
+    SetTopWindow(frame);
+
+    // Should guarantee that the first plot tab defined is the one
+    // displayed. But it doesn't when built from command line.  Why?
+
+    frame->m_auiNbookCtrl->ChangeSelection(0);
+    frame->Layout();
+    frame->Show();
+    g_parent =frame;
+
+
+    return true;
+}
+
+//-------------------------------------------------------------------------
+// OnExit()
+//-------------------------------------------------------------------------
+int MainApp::OnExit()
+{
+    fprintf(stderr, "MainApp::OnExit\n");
+    if (m_plugIn) {
+        #ifdef __WXMSW__
+        FreeLibrary((HMODULE)m_plugInHandle);
+        #else
+        dlclose(m_plugInHandle);
+        #endif
+    }
+
+    return 0;
+}
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class MainFrame(wxFrame* pa->ent) : TopFrame(parent)
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+MainFrame::MainFrame(wxString plugInName, wxWindow *parent) : TopFrame(plugInName, parent)
+{
+    m_zoom              = 1.;
+
+    #ifdef __WXMSW__
+    g_logfile = stderr;
+    #else
+    g_logfile = stderr;
+    #endif
+
+
+    SetMinSize(wxSize(400,400));
+
+    // Init Hamlib library, but we dont start talking to any rigs yet
+
+    wxGetApp().m_hamlib = new Hamlib();
+
+    // Init Serialport library, but as for Hamlib we dont start talking to any rigs yet
+
+    wxGetApp().m_serialport = new Serialport();
+
+    tools->AppendSeparator();
+    wxMenuItem* m_menuItemToolsConfigDelete;
+    m_menuItemToolsConfigDelete = new wxMenuItem(tools, wxID_ANY, wxString(_("&Restore defaults")) , wxT("Delete config file/keys and restore defaults"), wxITEM_NORMAL);
+    this->Connect(m_menuItemToolsConfigDelete->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(MainFrame::OnDeleteConfig));
+
+    tools->Append(m_menuItemToolsConfigDelete);
+
+    wxConfigBase *pConfig = wxConfigBase::Get();
+
+    // restore frame position and size
+    int x = pConfig->Read(wxT("/MainFrame/left"),       20);
+    int y = pConfig->Read(wxT("/MainFrame/top"),        20);
+    int w = pConfig->Read(wxT("/MainFrame/width"),     800);
+    int h = pConfig->Read(wxT("/MainFrame/height"),    550);
+
+    // sanitise frame position as a first pass at Win32 registry bug
+
+    fprintf(g_logfile, "x = %d y = %d w = %d h = %d\n", x,y,w,h);
+    if (x < 0 || x > 2048) x = 20;
+    if (y < 0 || y > 2048) y = 20;
+    if (w < 0 || w > 2048) w = 800;
+    if (h < 0 || h > 2048) h = 550;
+
+    wxGetApp().m_show_wf            = pConfig->Read(wxT("/MainFrame/show_wf"),           1);
+    wxGetApp().m_show_spect         = pConfig->Read(wxT("/MainFrame/show_spect"),        1);
+    wxGetApp().m_show_scatter       = pConfig->Read(wxT("/MainFrame/show_scatter"),      1);
+    wxGetApp().m_show_timing        = pConfig->Read(wxT("/MainFrame/show_timing"),       1);
+    wxGetApp().m_show_freq          = pConfig->Read(wxT("/MainFrame/show_freq"),         1);
+    wxGetApp().m_show_speech_in     = pConfig->Read(wxT("/MainFrame/show_speech_in"),    1);
+    wxGetApp().m_show_speech_out    = pConfig->Read(wxT("/MainFrame/show_speech_out"),   1);
+    wxGetApp().m_show_demod_in      = pConfig->Read(wxT("/MainFrame/show_demod_in"),     1);
+    wxGetApp().m_show_test_frame_errors = pConfig->Read(wxT("/MainFrame/show_test_frame_errors"),     1);
+    wxGetApp().m_show_test_frame_errors_hist = pConfig->Read(wxT("/MainFrame/show_test_frame_errors_hist"),     1);
+
+    wxGetApp().m_rxNbookCtrl        = pConfig->Read(wxT("/MainFrame/rxNbookCtrl"),    (long)0);
+
+    g_SquelchActive = pConfig->Read(wxT("/Audio/SquelchActive"), (long)0);
+    g_SquelchLevel = pConfig->Read(wxT("/Audio/SquelchLevel"), (int)(SQ_DEFAULT_SNR*2));
+    g_SquelchLevel /= 2.0;
+
+    Move(x, y);
+    SetClientSize(w, h);
+    
+    if(wxGetApp().m_show_wf)
+    {
+        // Add Waterfall Plot window
+        m_panelWaterfall = new PlotWaterfall((wxFrame*) m_auiNbookCtrl, false, 0);
+        m_panelWaterfall->SetToolTip(_("Left click to tune, Right click to toggle mono/colour"));
+        m_auiNbookCtrl->AddPage(m_panelWaterfall, _("Waterfall"), true, wxNullBitmap);
+    }
+    if(wxGetApp().m_show_spect)
+    {
+        // Add Spectrum Plot window
+        m_panelSpectrum = new PlotSpectrum((wxFrame*) m_auiNbookCtrl, g_avmag,
+                                           MODEM_STATS_NSPEC*((float)MAX_F_HZ/MODEM_STATS_MAX_F_HZ));
+        m_panelSpectrum->SetToolTip(_("Left click to tune"));
+        m_auiNbookCtrl->AddPage(m_panelSpectrum, _("Spectrum"), true, wxNullBitmap);
+    }
+    if(wxGetApp().m_show_scatter)
+    {
+        // Add Scatter Plot window
+        m_panelScatter = new PlotScatter((wxFrame*) m_auiNbookCtrl);
+        m_auiNbookCtrl->AddPage(m_panelScatter, _("Scatter"), true, wxNullBitmap);
+    }
+    if(wxGetApp().m_show_demod_in)
+    {
+        // Add Demod Input window
+        m_panelDemodIn = new PlotScalar((wxFrame*) m_auiNbookCtrl, 1, WAVEFORM_PLOT_TIME, 1.0/WAVEFORM_PLOT_FS, -1, 1, 1, 0.2, "%2.1f", 0);
+        m_auiNbookCtrl->AddPage(m_panelDemodIn, _("Frm Radio"), true, wxNullBitmap);
+        g_plotDemodInFifo = fifo_create(2*WAVEFORM_PLOT_BUF);
+    }
+
+    if(wxGetApp().m_show_speech_in)
+    {
+        // Add Speech Input window
+        m_panelSpeechIn = new PlotScalar((wxFrame*) m_auiNbookCtrl, 1, WAVEFORM_PLOT_TIME, 1.0/WAVEFORM_PLOT_FS, -1, 1, 1, 0.2, "%2.1f", 0);
+        m_auiNbookCtrl->AddPage(m_panelSpeechIn, _("Frm Mic"), true, wxNullBitmap);
+        g_plotSpeechInFifo = fifo_create(4*WAVEFORM_PLOT_BUF);
+    }
+
+    if(wxGetApp().m_show_speech_out)
+    {
+        // Add Speech Output window
+        m_panelSpeechOut = new PlotScalar((wxFrame*) m_auiNbookCtrl, 1, WAVEFORM_PLOT_TIME, 1.0/WAVEFORM_PLOT_FS, -1, 1, 1, 0.2, "%2.1f", 0);
+        m_auiNbookCtrl->AddPage(m_panelSpeechOut, _("To Spkr/Hdphns"), true, wxNullBitmap);
+        g_plotSpeechOutFifo = fifo_create(2*WAVEFORM_PLOT_BUF);
+    }
+
+    if(wxGetApp().m_show_timing)
+    {
+        // Add Timing Offset window
+        m_panelTimeOffset = new PlotScalar((wxFrame*) m_auiNbookCtrl, 1, 5.0, DT, -0.5, 0.5, 1, 0.1, "%2.1f", 0);
+        m_auiNbookCtrl->AddPage(m_panelTimeOffset, L"Timing \u0394", true, wxNullBitmap);
+    }
+    if(wxGetApp().m_show_freq)
+    {
+        // Add Frequency Offset window
+        m_panelFreqOffset = new PlotScalar((wxFrame*) m_auiNbookCtrl, 1, 5.0, DT, -200, 200, 1, 50, "%3.0fHz", 0);
+        m_auiNbookCtrl->AddPage(m_panelFreqOffset, L"Frequency \u0394", true, wxNullBitmap);
+    }
+
+    if(wxGetApp().m_show_test_frame_errors)
+    {
+        // Add Test Frame Errors window
+        m_panelTestFrameErrors = new PlotScalar((wxFrame*) m_auiNbookCtrl, 2*MODEM_STATS_NC_MAX, 30.0, DT, 0, 2*MODEM_STATS_NC_MAX+2, 1, 1, "", 1);
+        m_auiNbookCtrl->AddPage(m_panelTestFrameErrors, L"Test Frame Errors", true, wxNullBitmap);
+    }
+
+    if(wxGetApp().m_show_test_frame_errors_hist)
+    {
+        // Add Test Frame Historgram window.  1 column for every bit, 2 bits per carrier
+        m_panelTestFrameErrorsHist = new PlotScalar((wxFrame*) m_auiNbookCtrl, 1, 1.0, 1.0/(2*FDMDV_NC_MAX), 0.001, 0.1, 1.0/FDMDV_NC_MAX, 0.1, "%0.0E", 0);
+        m_auiNbookCtrl->AddPage(m_panelTestFrameErrorsHist, L"Test Frame Histogram", true, wxNullBitmap);
+        m_panelTestFrameErrorsHist->setBarGraph(1);
+        m_panelTestFrameErrorsHist->setLogY(1);
+    }
+
+    wxGetApp().m_framesPerBuffer = pConfig->Read(wxT("/Audio/framesPerBuffer"), PA_FPB);
+
+    g_soundCard1InDeviceNum  = pConfig->Read(wxT("/Audio/soundCard1InDeviceNum"),         -1);
+    g_soundCard1OutDeviceNum = pConfig->Read(wxT("/Audio/soundCard1OutDeviceNum"),        -1);
+    g_soundCard1SampleRate   = pConfig->Read(wxT("/Audio/soundCard1SampleRate"),          -1);
+
+    g_soundCard2InDeviceNum  = pConfig->Read(wxT("/Audio/soundCard2InDeviceNum"),         -1);
+    g_soundCard2OutDeviceNum = pConfig->Read(wxT("/Audio/soundCard2OutDeviceNum"),        -1);
+    g_soundCard2SampleRate   = pConfig->Read(wxT("/Audio/soundCard2SampleRate"),          -1);
+
+    g_nSoundCards = 0;
+    if ((g_soundCard1InDeviceNum > -1) && (g_soundCard1OutDeviceNum > -1)) {
+        g_nSoundCards = 1;
+        if ((g_soundCard2InDeviceNum > -1) && (g_soundCard2OutDeviceNum > -1))
+            g_nSoundCards = 2;
+    }
+
+    wxGetApp().m_playFileToMicInPath = pConfig->Read("/File/playFileToMicInPath",   wxT(""));
+    wxGetApp().m_recFileFromRadioPath = pConfig->Read("/File/recFileFromRadioPath", wxT(""));
+    wxGetApp().m_recFileFromRadioSecs = pConfig->Read("/File/recFileFromRadioSecs", 30);
+    wxGetApp().m_playFileFromRadioPath = pConfig->Read("/File/playFileFromRadioPath", wxT(""));
+
+    // PTT -------------------------------------------------------------------
+
+    wxGetApp().m_boolHalfDuplex     = pConfig->ReadBool(wxT("/Rig/HalfDuplex"),     true);
+    wxGetApp().m_leftChannelVoxTone = pConfig->ReadBool("/Rig/leftChannelVoxTone",  false);
+ 
+    wxGetApp().m_txtVoiceKeyerWaveFilePath = pConfig->Read(wxT("/VoiceKeyer/WaveFilePath"), wxT(""));
+    wxGetApp().m_txtVoiceKeyerWaveFile = pConfig->Read(wxT("/VoiceKeyer/WaveFile"), wxT("voicekeyer.wav"));
+    wxGetApp().m_intVoiceKeyerRxPause = pConfig->Read(wxT("/VoiceKeyer/RxPause"), 10);
+    wxGetApp().m_intVoiceKeyerRepeats = pConfig->Read(wxT("/VoiceKeyer/Repeats"), 5);
+ 
+    wxGetApp().m_boolHamlibUseForPTT = pConfig->ReadBool("/Hamlib/UseForPTT", false);
+    wxGetApp().m_intHamlibRig = pConfig->ReadLong("/Hamlib/RigName", 0);
+    wxGetApp().m_strHamlibSerialPort = pConfig->Read("/Hamlib/SerialPort", "");
+    wxGetApp().m_intHamlibSerialRate = pConfig->ReadLong("/Hamlib/SerialRate", 0);
+    
+    wxGetApp().m_boolUseSerialPTT   = pConfig->ReadBool(wxT("/Rig/UseSerialPTT"),   false);
+    wxGetApp().m_strRigCtrlPort     = pConfig->Read(wxT("/Rig/Port"),               wxT(""));
+    wxGetApp().m_boolUseRTS         = pConfig->ReadBool(wxT("/Rig/UseRTS"),         true);
+    wxGetApp().m_boolRTSPos         = pConfig->ReadBool(wxT("/Rig/RTSPolarity"),    true);
+    wxGetApp().m_boolUseDTR         = pConfig->ReadBool(wxT("/Rig/UseDTR"),         false);
+    wxGetApp().m_boolDTRPos         = pConfig->ReadBool(wxT("/Rig/DTRPolarity"),    false);
+
+    assert(wxGetApp().m_serialport != NULL);
+
+    // -----------------------------------------------------------------------
+
+    bool slow = false; // prevents compile error when using default bool
+    wxGetApp().m_snrSlow = pConfig->Read("/Audio/snrSlow", slow);
+
+    bool t = true;     // prevents compile error when using default bool
+    wxGetApp().m_codec2LPCPostFilterEnable     = pConfig->Read(wxT("/Filter/codec2LPCPostFilterEnable"),    t);
+    wxGetApp().m_codec2LPCPostFilterBassBoost  = pConfig->Read(wxT("/Filter/codec2LPCPostFilterBassBoost"), t);
+    wxGetApp().m_codec2LPCPostFilterGamma      = (float)pConfig->Read(wxT("/Filter/codec2LPCPostFilterGamma"),     CODEC2_LPC_PF_GAMMA*100)/100.0;
+    wxGetApp().m_codec2LPCPostFilterBeta       = (float)pConfig->Read(wxT("/Filter/codec2LPCPostFilterBeta"),      CODEC2_LPC_PF_BETA*100)/100.0;
+    //printf("main(): m_codec2LPCPostFilterBeta: %f\n", wxGetApp().m_codec2LPCPostFilterBeta);
+
+    wxGetApp().m_speexpp_enable     = pConfig->Read(wxT("/Filter/speexpp_enable"),    t);
+
+    wxGetApp().m_MicInBassFreqHz = (float)pConfig->Read(wxT("/Filter/MicInBassFreqHz"),    1);
+    wxGetApp().m_MicInBassGaindB = (float)pConfig->Read(wxT("/Filter/MicInBassGaindB"),    (long)0)/10.0;
+    wxGetApp().m_MicInTrebleFreqHz = (float)pConfig->Read(wxT("/Filter/MicInTrebleFreqHz"),    1);
+    wxGetApp().m_MicInTrebleGaindB = (float)pConfig->Read(wxT("/Filter/MicInTrebleGaindB"),    (long)0)/10.0;
+    wxGetApp().m_MicInMidFreqHz = (float)pConfig->Read(wxT("/Filter/MicInMidFreqHz"),    1);
+    wxGetApp().m_MicInMidGaindB = (float)pConfig->Read(wxT("/Filter/MicInMidGaindB"),    (long)0)/10.0;
+    wxGetApp().m_MicInMidQ = (float)pConfig->Read(wxT("/Filter/MicInMidQ"),              (long)100)/100.0;
+
+    bool f = false;
+    wxGetApp().m_MicInEQEnable = (float)pConfig->Read(wxT("/Filter/MicInEQEnable"), f);
+
+    wxGetApp().m_SpkOutBassFreqHz = (float)pConfig->Read(wxT("/Filter/SpkOutBassFreqHz"),    1);
+    wxGetApp().m_SpkOutBassGaindB = (float)pConfig->Read(wxT("/Filter/SpkOutBassGaindB"),    (long)0)/10.0;
+    wxGetApp().m_SpkOutTrebleFreqHz = (float)pConfig->Read(wxT("/Filter/SpkOutTrebleFreqHz"),    1);
+    wxGetApp().m_SpkOutTrebleGaindB = (float)pConfig->Read(wxT("/Filter/SpkOutTrebleGaindB"),    (long)0)/10.0;
+    wxGetApp().m_SpkOutMidFreqHz = (float)pConfig->Read(wxT("/Filter/SpkOutMidFreqHz"),    1);
+    wxGetApp().m_SpkOutMidGaindB = (float)pConfig->Read(wxT("/Filter/SpkOutMidGaindB"),    (long)0)/10.0;
+    wxGetApp().m_SpkOutMidQ = (float)pConfig->Read(wxT("/Filter/SpkOutMidQ"),                (long)100)/100.0;
+
+    wxGetApp().m_SpkOutEQEnable = (float)pConfig->Read(wxT("/Filter/SpkOutEQEnable"), f);
+
+    wxGetApp().m_callSign = pConfig->Read("/Data/CallSign", wxT(""));
+    wxGetApp().m_textEncoding = pConfig->Read("/Data/TextEncoding", 1);
+    wxGetApp().m_enable_checksum = pConfig->Read("/Data/EnableChecksumOnMsgRx", f);
+
+    wxGetApp().m_events = pConfig->Read("/Events/enable", f);
+    wxGetApp().m_events_spam_timer = (int)pConfig->Read(wxT("/Events/spam_timer"), 10);
+    wxGetApp().m_events_regexp_match = pConfig->Read("/Events/regexp_match", wxT("s=(.*)"));
+    wxGetApp().m_events_regexp_replace = pConfig->Read("/Events/regexp_replace", 
+                                                       wxT("curl http://qso.freedv.org/cgi-bin/onspot.cgi?s=\\1"));
+    // make sure regexp lists are terminated by a \n
+
+    if (wxGetApp().m_events_regexp_match.Last() != '\n') {
+        wxGetApp().m_events_regexp_match = wxGetApp().m_events_regexp_match+'\n';
+    }
+    if (wxGetApp().m_events_regexp_replace.Last() != '\n') {
+        wxGetApp().m_events_regexp_replace = wxGetApp().m_events_regexp_replace+'\n';
+    }
+
+    wxGetApp().m_udp_enable = (float)pConfig->Read(wxT("/UDP/enable"), f);
+    wxGetApp().m_udp_port = (int)pConfig->Read(wxT("/UDP/port"), 3000);
+
+    wxGetApp().m_FreeDV700txClip = (float)pConfig->Read(wxT("/FreeDV700/txClip"), t);
+    wxGetApp().m_FreeDV700Combine = 1;
+    wxGetApp().m_noise_snr = (float)pConfig->Read(wxT("/Noise/noise_snr"), 2);
+ 
+    wxGetApp().m_debug_console = (float)pConfig->Read(wxT("/Debug/console"), f);
+
+    wxGetApp().m_attn_carrier_en = 0;
+    wxGetApp().m_attn_carrier    = 0;
+
+    wxGetApp().m_tone = 0;
+    wxGetApp().m_tone_freq_hz = 1000;
+    wxGetApp().m_tone_amplitude = 500;
+
+    int mode  = pConfig->Read(wxT("/Audio/mode"), (long)0);
+    if (mode == 0)
+        m_rb1600->SetValue(1);
+    //if (mode == 2)
+    //    m_rb700b->SetValue(1);
+    if (mode == 3)
+        m_rb700c->SetValue(1);
+    if (mode == 4)
+        m_rb800xa->SetValue(1);
+        
+    pConfig->SetPath(wxT("/"));
+
+//    this->Connect(m_menuItemHelpUpdates->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnHelpCheckUpdatesUI));
+    //m_togRxID->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnRxIDUI), NULL, this);
+    //m_togTxID->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnTxIDUI), NULL, this);
+    m_togBtnOnOff->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnOnOffUI), NULL, this);
+    m_togBtnSplit->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnSplitClickUI), NULL, this);
+    m_togBtnAnalog->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnAnalogClickUI), NULL, this);
+    //m_togBtnALC->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnALCClickUI), NULL, this);
+   // m_btnTogPTT->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnPTT_UI), NULL, this);
+
+    m_togBtnSplit->Disable();
+    //m_togRxID->Disable();
+    //m_togTxID->Disable();
+    m_togBtnAnalog->Disable();
+    m_btnTogPTT->Disable();
+    m_togBtnVoiceKeyer->Disable();
+    //m_togBtnALC->Disable();
+
+    // squelch settings
+    char sqsnr[15];
+    m_sliderSQ->SetValue((int)((g_SquelchLevel+5.0)*2.0));
+    sprintf(sqsnr, "%4.1f", g_SquelchLevel);
+    wxString sqsnr_string(sqsnr);
+    m_textSQ->SetLabel(sqsnr_string);
+    m_ckboxSQ->SetValue(g_SquelchActive);
+
+    // SNR settings
+
+    m_ckboxSNR->SetValue(wxGetApp().m_snrSlow);
+    setsnrBeta(wxGetApp().m_snrSlow);
+
+#ifdef _USE_TIMER
+    Bind(wxEVT_TIMER, &MainFrame::OnTimer, this);       // ID_MY_WINDOW);
+    m_plotTimer.SetOwner(this, ID_TIMER_WATERFALL);
+    //m_panelWaterfall->Refresh();
+#endif
+
+    m_RxRunning = false;
+
+#ifdef _USE_ONIDLE
+    Connect(wxEVT_IDLE, wxIdleEventHandler(MainFrame::OnIdle), NULL, this);
+#endif //_USE_ONIDLE
+
+    g_sfPlayFile = NULL;
+    g_playFileToMicIn = false;
+    g_loopPlayFileToMicIn = false;
+
+    g_sfRecFile = NULL;
+    g_recFileFromRadio = false;
+
+    g_sfPlayFileFromRadio = NULL;
+    g_playFileFromRadio = false;
+    g_loopPlayFileFromRadio = false;
+
+    // init click-tune states
+
+    g_RxFreqOffsetHz = 0.0;
+    g_RxFreqOffsetPhaseRect.real = cos(0.0);
+    g_RxFreqOffsetPhaseRect.imag = sin(0.0);
+    m_panelWaterfall->setRxFreq(FDMDV_FCENTRE - g_RxFreqOffsetHz);
+    m_panelSpectrum->setRxFreq(FDMDV_FCENTRE - g_RxFreqOffsetHz);
+
+    g_TxFreqOffsetHz = 0.0;
+    g_TxFreqOffsetPhaseRect.real = cos(0.0);
+    g_TxFreqOffsetPhaseRect.imag = sin(0.0);
+
+    g_tx = 0;
+    g_split = 0;
+
+    // data states
+    g_txDataInFifo = fifo_create(MAX_CALLSIGN*VARICODE_MAX_BITS);
+    g_rxDataOutFifo = fifo_create(MAX_CALLSIGN*VARICODE_MAX_BITS);
+
+    sox_biquad_start();
+
+    g_testFrames = 0;
+    g_test_frame_sync_state = 0;
+    g_resyncs = 0;
+    wxGetApp().m_testFrames = false;
+    g_tone_phase = 0.0;
+
+    g_modal = false;
+
+#ifdef __EXPERIMENTAL_UDP__
+    // Start UDP listener thread
+
+    m_UDPThread = NULL;
+    startUDPThread();
+#endif
+
+    optionsDlg = new OptionsDlg(NULL);
+    m_schedule_restore = false;
+
+    vk_state = VK_IDLE;
+
+    // Init optional Windows debug console so we can see all those printfs
+
+#ifdef __WXMSW__
+    if (wxGetApp().m_debug_console) {
+        // somewhere to send printfs while developing
+        int ret = AllocConsole();
+        freopen("CONOUT$", "w", stdout); 
+        freopen("CONOUT$", "w", stderr); 
+        fprintf(stderr, "AllocConsole: %d m_debug_console: %d\n", ret, wxGetApp().m_debug_console);
+    }
+#endif
+
+    //ftest = fopen("ftest.raw", "wb");
+    //assert(ftest != NULL);
+}
+
+//-------------------------------------------------------------------------
+// ~MainFrame()
+//-------------------------------------------------------------------------
+MainFrame::~MainFrame()
+{
+    int x;
+    int y;
+    int w;
+    int h;
+
+    fprintf(stderr, "MainFrame::~MainFrame()\n");
+    //fclose(ftest);
+    #ifdef __WXMSW__
+    fclose(g_logfile);
+    #endif
+
+    if (optionsDlg != NULL) {
+        delete optionsDlg;
+        optionsDlg = NULL;
+    }
+
+#ifdef __EXPERIMENTAL_UDP__
+    stopUDPThread();
+#endif
+
+    if (wxGetApp().m_hamlib) delete wxGetApp().m_hamlib;
+    if (wxGetApp().m_serialport) delete wxGetApp().m_serialport;
+
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    if(pConfig)
+    {
+        if (!IsIconized()) {
+            GetClientSize(&w, &h);
+            GetPosition(&x, &y);
+            printf("x = %d y = %d w = %d h = %d\n", x,y,w,h);
+            pConfig->Write(wxT("/MainFrame/left"),               (long) x);
+            pConfig->Write(wxT("/MainFrame/top"),                (long) y);
+            pConfig->Write(wxT("/MainFrame/width"),              (long) w);
+            pConfig->Write(wxT("/MainFrame/height"),             (long) h);
+        }
+        pConfig->Write(wxT("/MainFrame/show_wf"),           wxGetApp().m_show_wf);
+        pConfig->Write(wxT("/MainFrame/show_spect"),        wxGetApp().m_show_spect);
+        pConfig->Write(wxT("/MainFrame/show_scatter"),      wxGetApp().m_show_scatter);
+        pConfig->Write(wxT("/MainFrame/show_timing"),       wxGetApp().m_show_timing);
+        pConfig->Write(wxT("/MainFrame/show_freq"),         wxGetApp().m_show_freq);
+        pConfig->Write(wxT("/MainFrame/show_speech_in"),    wxGetApp().m_show_speech_in);
+        pConfig->Write(wxT("/MainFrame/show_speech_out"),   wxGetApp().m_show_speech_out);
+        pConfig->Write(wxT("/MainFrame/show_demod_in"),     wxGetApp().m_show_demod_in);
+        pConfig->Write(wxT("/MainFrame/show_test_frame_errors"), wxGetApp().m_show_test_frame_errors);
+        pConfig->Write(wxT("/MainFrame/show_test_frame_errors_hist"), wxGetApp().m_show_test_frame_errors_hist);
+
+        pConfig->Write(wxT("/MainFrame/rxNbookCtrl"), wxGetApp().m_rxNbookCtrl);
+
+        pConfig->Write(wxT("/Audio/SquelchActive"),         g_SquelchActive);
+        pConfig->Write(wxT("/Audio/SquelchLevel"),          (int)(g_SquelchLevel*2.0));
+
+        pConfig->Write(wxT("/Audio/framesPerBuffer"),       wxGetApp().m_framesPerBuffer);
+
+        pConfig->Write(wxT("/Audio/soundCard1InDeviceNum"),   g_soundCard1InDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard1OutDeviceNum"),  g_soundCard1OutDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard1SampleRate"),    g_soundCard1SampleRate );
+
+        pConfig->Write(wxT("/Audio/soundCard2InDeviceNum"),   g_soundCard2InDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard2OutDeviceNum"),  g_soundCard2OutDeviceNum);
+        pConfig->Write(wxT("/Audio/soundCard2SampleRate"),    g_soundCard2SampleRate );
+
+        pConfig->Write(wxT("/VoiceKeyer/WaveFilePath"), wxGetApp().m_txtVoiceKeyerWaveFilePath);
+        pConfig->Write(wxT("/VoiceKeyer/WaveFile"), wxGetApp().m_txtVoiceKeyerWaveFile);
+        pConfig->Write(wxT("/VoiceKeyer/RxPause"), wxGetApp().m_intVoiceKeyerRxPause);
+        pConfig->Write(wxT("/VoiceKeyer/Repeats"), wxGetApp().m_intVoiceKeyerRepeats);
+
+        pConfig->Write(wxT("/Rig/HalfDuplex"),              wxGetApp().m_boolHalfDuplex);
+        pConfig->Write(wxT("/Rig/leftChannelVoxTone"),      wxGetApp().m_leftChannelVoxTone);
+        pConfig->Write("/Hamlib/UseForPTT", wxGetApp().m_boolHamlibUseForPTT);
+        pConfig->Write("/Hamlib/RigName", wxGetApp().m_intHamlibRig);
+        pConfig->Write("/Hamlib/SerialPort", wxGetApp().m_strHamlibSerialPort);
+        pConfig->Write("/Hamlib/SerialRate", wxGetApp().m_intHamlibSerialRate);
+
+
+        pConfig->Write(wxT("/File/playFileToMicInPath"),    wxGetApp().m_playFileToMicInPath);
+        pConfig->Write(wxT("/File/recFileFromRadioPath"),   wxGetApp().m_recFileFromRadioPath);
+        pConfig->Write(wxT("/File/recFileFromRadioSecs"),   wxGetApp().m_recFileFromRadioSecs);
+        pConfig->Write(wxT("/File/playFileFromRadioPath"),  wxGetApp().m_playFileFromRadioPath);
+
+        pConfig->Write(wxT("/Audio/snrSlow"), wxGetApp().m_snrSlow);
+
+        pConfig->Write(wxT("/Data/CallSign"), wxGetApp().m_callSign);
+        pConfig->Write(wxT("/Data/TextEncoding"), wxGetApp().m_textEncoding);
+        pConfig->Write(wxT("/Data/EnableChecksumOnMsgRx"), wxGetApp().m_enable_checksum);
+        pConfig->Write(wxT("/Events/enable"), wxGetApp().m_events);
+        pConfig->Write(wxT("/Events/spam_timer"), wxGetApp().m_events_spam_timer);
+        pConfig->Write(wxT("/Events/regexp_match"), wxGetApp().m_events_regexp_match);
+        pConfig->Write(wxT("/Events/regexp_replace"), wxGetApp().m_events_regexp_replace);
+ 
+        pConfig->Write(wxT("/UDP/enable"), wxGetApp().m_udp_enable);
+        pConfig->Write(wxT("/UDP/port"),  wxGetApp().m_udp_port);
+
+        pConfig->Write(wxT("/Filter/MicInEQEnable"), wxGetApp().m_MicInEQEnable);
+        pConfig->Write(wxT("/Filter/SpkOutEQEnable"), wxGetApp().m_SpkOutEQEnable);
+
+        pConfig->Write(wxT("/FreeDV700/txClip"), wxGetApp().m_FreeDV700txClip);
+        pConfig->Write(wxT("/Noise/noise_snr"), wxGetApp().m_noise_snr);
+
+        pConfig->Write(wxT("/Debug/console"), wxGetApp().m_debug_console);
+
+        int mode;
+        if (m_rb1600->GetValue())
+            mode = 0;
+        //if (m_rb700b->GetValue())
+        //    mode = 2;
+        if (m_rb700c->GetValue())
+            mode = 3;
+        if (m_rb800xa->GetValue())
+            mode = 4;
+       pConfig->Write(wxT("/Audio/mode"), mode);
+    }
+
+    //m_togRxID->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnRxIDUI), NULL, this);
+    //m_togTxID->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnTxIDUI), NULL, this);
+    m_togBtnOnOff->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnOnOffUI), NULL, this);
+    m_togBtnSplit->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnSplitClickUI), NULL, this);
+    m_togBtnAnalog->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnAnalogClickUI), NULL, this);
+    //m_togBtnALC->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnALCClickUI), NULL, this);
+    //m_btnTogPTT->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(MainFrame::OnTogBtnPTT_UI), NULL, this);
+
+    sox_biquad_finish();
+
+    if (m_RxRunning)
+    {
+        stopRxStream();
+    }
+    if (g_sfPlayFile != NULL)
+    {
+        sf_close(g_sfPlayFile);
+        g_sfPlayFile = NULL;
+    }
+    if (g_sfRecFile != NULL)
+    {
+        sf_close(g_sfRecFile);
+        g_sfRecFile = NULL;
+    }
+#ifdef _USE_TIMER
+    if(m_plotTimer.IsRunning())
+    {
+        m_plotTimer.Stop();
+        Unbind(wxEVT_TIMER, &MainFrame::OnTimer, this);
+    }
+#endif //_USE_TIMER
+
+#ifdef _USE_ONIDLE
+    Disconnect(wxEVT_IDLE, wxIdleEventHandler(MainFrame::OnIdle), NULL, this);
+#endif // _USE_ONIDLE
+
+    delete wxConfigBase::Set((wxConfigBase *) NULL);
+}
+
+
+#ifdef _USE_ONIDLE
+void MainFrame::OnIdle(wxIdleEvent &evt) {
+}
+#endif
+
+
+#ifdef _USE_TIMER
+//----------------------------------------------------------------
+// OnTimer()
+//
+// when the timer fires every DT seconds we update the GUI displays.
+// the tabs only the plot that is visible actually gets updated, this
+// keeps CPU load reasonable
+//----------------------------------------------------------------
+void MainFrame::OnTimer(wxTimerEvent &evt)
+{
+
+    int r,c;
+
+    if (m_panelWaterfall->checkDT()) {
+        m_panelWaterfall->setRxFreq(FDMDV_FCENTRE - g_RxFreqOffsetHz);
+        m_panelWaterfall->m_newdata = true;
+        m_panelWaterfall->Refresh();
+    }
+
+    m_panelSpectrum->setRxFreq(FDMDV_FCENTRE - g_RxFreqOffsetHz);
+    m_panelSpectrum->m_newdata = true;
+    m_panelSpectrum->Refresh();
+
+    /* update scatter/eye plot ------------------------------------------------------------*/
+
+    if (freedv_get_mode(g_pfreedv) == FREEDV_MODE_800XA) {
+        /* FSK Mode - eye diagram ---------------------------------------------------------*/
+        
+        /* add samples row by row */
+
+        int i;
+	for (i=0; i<g_stats.neyetr; i++) {
+            m_panelScatter->add_new_samples_eye(&g_stats.rx_eye[i][0], g_stats.neyesamp);
+        }
+    }
+    else {
+        /* PSK Modes - scatter plot -------------------------------------------------------*/
+        for (r=0; r<g_stats.nr; r++) {
+        
+            if (freedv_get_mode(g_pfreedv) == FREEDV_MODE_1600) {
+                m_panelScatter->add_new_samples_scatter(&g_stats.rx_symbols[r][0]);
+            }
+        
+            if (/*(freedv_get_mode(g_pfreedv) == FREEDV_MODE_700B) ||*/(freedv_get_mode(g_pfreedv) == FREEDV_MODE_700C)) {
+            
+                if (wxGetApp().m_FreeDV700Combine) {
+                    m_panelScatter->setNc(g_Nc/2); /* m_FreeDV700Combine may have changed at run time */
+
+                    /* 
+                       FreeDV 700 uses diversity, so optionaly combine
+                       symbols for scatter plot, as combined symbols are
+                       used for demodulation.  Note we need to use a copy
+                       of the symbols, as we are not sure when the stats
+                       will be updated.
+                    */
+
+                    COMP rx_symbols_copy[g_Nc/2];
+
+                    for(c=0; c<g_Nc/2; c++)
+                        rx_symbols_copy[c] = fcmult(0.5, cadd(g_stats.rx_symbols[r][c], g_stats.rx_symbols[r][c+g_Nc/2]));
+                    m_panelScatter->add_new_samples_scatter(rx_symbols_copy);
+                }
+                else {
+                    m_panelScatter->setNc(g_Nc); /* m_FreeDV700Combine may have changed at run time */
+                    /*
+                      Sometimes useful to plot carriers separately, e.g. to determine if tx carrier power is constant
+                      across carriers.
+                    */
+                    m_panelScatter->add_new_samples_scatter(&g_stats.rx_symbols[r][0]);
+                }
+            }
+       
+        }
+    }
+
+    m_panelScatter->Refresh();
+
+    // Oscilliscope type speech plots -------------------------------------------------------
+
+    short speechInPlotSamples[WAVEFORM_PLOT_BUF];
+    if (fifo_read(g_plotSpeechInFifo, speechInPlotSamples, WAVEFORM_PLOT_BUF)) {
+        memset(speechInPlotSamples, 0, WAVEFORM_PLOT_BUF*sizeof(short));
+        //fprintf(stderr, "empty!\n");
+    }
+    m_panelSpeechIn->add_new_short_samples(0, speechInPlotSamples, WAVEFORM_PLOT_BUF, 32767);
+    m_panelSpeechIn->Refresh();
+
+    short speechOutPlotSamples[WAVEFORM_PLOT_BUF];
+    if (fifo_read(g_plotSpeechOutFifo, speechOutPlotSamples, WAVEFORM_PLOT_BUF))
+        memset(speechOutPlotSamples, 0, WAVEFORM_PLOT_BUF*sizeof(short));
+    m_panelSpeechOut->add_new_short_samples(0, speechOutPlotSamples, WAVEFORM_PLOT_BUF, 32767);
+    m_panelSpeechOut->Refresh();
+
+    short demodInPlotSamples[WAVEFORM_PLOT_BUF];
+    if (fifo_read(g_plotDemodInFifo, demodInPlotSamples, WAVEFORM_PLOT_BUF)) {
+        memset(demodInPlotSamples, 0, WAVEFORM_PLOT_BUF*sizeof(short));
+    }
+    m_panelDemodIn->add_new_short_samples(0,demodInPlotSamples, WAVEFORM_PLOT_BUF, 32767);
+    m_panelDemodIn->Refresh();
+
+    // Demod states -----------------------------------------------------------------------
+
+    m_panelTimeOffset->add_new_sample(0, (float)g_stats.rx_timing/FDMDV_NOM_SAMPLES_PER_FRAME);
+    m_panelTimeOffset->Refresh();
+
+    m_panelFreqOffset->add_new_sample(0, g_stats.foff);
+    m_panelFreqOffset->Refresh();
+
+    // SNR text box and gauge ------------------------------------------------------------
+
+    // LP filter g_stats.snr_est some more to stabilise the
+    // display. g_stats.snr_est already has some low pass filtering
+    // but we need it fairly fast to activate squelch.  So we
+    // optionally perform some further filtering for the display
+    // version of SNR.  The "Slow" checkbox controls the amount of
+    // filtering.  The filtered snr also controls the squelch
+
+    g_snr = m_snrBeta*g_snr + (1.0 - m_snrBeta)*g_stats.snr_est;
+    float snr_limited = g_snr;
+    if (snr_limited < -5.0) snr_limited = -5.0;
+    if (snr_limited > 20.0) snr_limited = 20.0;
+
+    char snr[15];
+    sprintf(snr, "%d", (int)(g_snr+0.5)); // round to nearest dB
+
+    //printf("snr_est: %f m_snrBeta: %f g_snr: %f snr_limited: %f\n", g_stats.snr_est,  m_snrBeta, g_snr, snr_limited);
+
+    wxString snr_string(snr);
+    m_textSNR->SetLabel(snr_string);
+    m_gaugeSNR->SetValue((int)(snr_limited+5));
+
+ 
+    // Level Gauge -----------------------------------------------------------------------
+
+    float tooHighThresh;
+    if (!g_tx && m_RxRunning)
+    {
+        // receive mode - display From Radio peaks
+        // peak from this DT sampling period
+        int maxDemodIn = 0;
+        for(int i=0; i<WAVEFORM_PLOT_BUF; i++)
+            if (maxDemodIn < abs(demodInPlotSamples[i]))
+                maxDemodIn = abs(demodInPlotSamples[i]);
+
+        // peak from last second
+        if (maxDemodIn > m_maxLevel)
+            m_maxLevel = maxDemodIn;
+
+        tooHighThresh = FROM_RADIO_MAX;
+    }
+    else
+    {
+        // transmit mode - display From Mic peaks
+
+        // peak from this DT sampling period
+        int maxSpeechIn = 0;
+        for(int i=0; i<WAVEFORM_PLOT_BUF; i++)
+            if (maxSpeechIn < abs(speechInPlotSamples[i]))
+                maxSpeechIn = abs(speechInPlotSamples[i]);
+
+        // peak from last second
+        if (maxSpeechIn > m_maxLevel)
+            m_maxLevel = maxSpeechIn;
+
+       tooHighThresh = FROM_MIC_MAX;
+    }
+
+    // Peak Reading meter: updates peaks immediately, then slowly decays
+    int maxScaled = (int)(100.0 * ((float)m_maxLevel/32767.0));
+    m_gaugeLevel->SetValue(maxScaled);
+    //printf("maxScaled: %d\n", maxScaled);
+    if (((float)maxScaled/100) > tooHighThresh)
+        m_textLevel->SetLabel("Too High");
+    else
+        m_textLevel->SetLabel("");
+
+    m_maxLevel *= LEVEL_BETA;
+
+    // sync LED (Colours don't work on Windows) ------------------------
+
+    //fprintf(stderr, "g_State: %d  m_rbSync->GetValue(): %d\n", g_State, m_rbSync->GetValue());
+    if (g_State) {
+        if (g_prev_State == 0) {
+            g_resyncs++;
+        }
+        m_rbSync->SetForegroundColour( wxColour( 0, 255, 0 ) ); // green
+        m_rbSync->SetValue(true);        
+    }
+    else {
+        m_rbSync->SetForegroundColour( wxColour( 255, 0, 0 ) ); // red
+        m_rbSync->SetValue(false);
+    }
+    g_prev_State = g_State;
+
+    // send Callsign ----------------------------------------------------
+
+    char callsign[MAX_CALLSIGN];
+    strncpy(callsign, (const char*) wxGetApp().m_callSign.mb_str(wxConvUTF8), MAX_CALLSIGN-1);
+
+    // buffer 1 txt message to ensure tx data fifo doesn't "run dry"
+
+    if ((unsigned)fifo_used(g_txDataInFifo) < strlen(callsign)) {
+        unsigned int  i;
+
+        //fprintf(g_logfile, "tx callsign: %s.\n", callsign);
+
+        /* optionally append checksum */
+
+        if (wxGetApp().m_enable_checksum) {
+
+            unsigned char checksum = 0;
+            char callsign_checksum_cr[MAX_CALLSIGN+1];
+
+            for(i=0; i<strlen(callsign); i++)
+                checksum += callsign[i];
+            sprintf(callsign_checksum_cr, "%s%2x", callsign, checksum);
+            callsign_checksum_cr[strlen(callsign)+2] = 13;
+            callsign_checksum_cr[strlen(callsign)+3] = 0;
+            strcpy(callsign, callsign_checksum_cr);
+        }
+        else {
+            callsign[strlen(callsign)] = 13;
+            callsign[strlen(callsign)+1] = 0;
+        }
+
+        //fprintf(g_logfile, "tx callsign: %s.\n", callsign);
+
+        // write chars to tx data fifo
+
+        for(i=0; i<strlen(callsign); i++) {
+            short ashort = (short)callsign[i];
+            fifo_write(g_txDataInFifo, &ashort, 1);
+        }
+    }
+
+    // See if any Callsign info received --------------------------------
+
+    short ashort;
+    while (fifo_read(g_rxDataOutFifo, &ashort, 1) == 0) {
+
+        if ((ashort == 13) || ((m_pcallsign - m_callsign) > MAX_CALLSIGN-1)) {
+            // CR completes line
+            *m_pcallsign = 0;
+            
+            /* Checksums can be disabled, e.g. for compatability with
+               older vesions.  In that case we print msg but don't do
+               any event processing.  If checksums enabled, only print
+               out when checksum is good. */
+
+            if (wxGetApp().m_enable_checksum) {
+                // lets see if checksum is OK
+            
+                unsigned char checksum_rx = 0;
+                if (strlen(m_callsign) > 2) {
+                    for(unsigned int i=0; i<strlen(m_callsign)-2; i++)
+                        checksum_rx += m_callsign[i];
+                }
+                unsigned int checksum_tx;
+                int ret = sscanf(&m_callsign[strlen(m_callsign)-2], "%2x", &checksum_tx);
+                //fprintf(g_logfile, "rx callsign: %s.\n  checksum tx: %02x checksum rx: %02x\n", m_callsign, checksum_tx, checksum_rx);
+
+                wxString s;
+                if (ret && (checksum_tx == checksum_rx)) {
+                    m_callsign[strlen(m_callsign)-2] = 0;
+                    s.Printf("%s", m_callsign);
+                    m_txtCtrlCallSign->SetValue(s);
+
+#ifdef __UDP_EXPERIMENTAL__
+                    char s1[MAX_CALLSIGN];
+                    sprintf(s1,"rx_txtmsg %s", m_callsign);
+                    processTxtEvent(s1);
+
+                    m_checksumGood++;
+                    s.Printf("%d", m_checksumGood);
+                    m_txtChecksumGood->SetLabel(s);              
+#endif
+                }
+                else {
+#ifdef __UDP_EXPERIMENTAL__
+                    m_checksumBad++;
+                    s.Printf("%d", m_checksumBad);
+                    m_txtChecksumBad->SetLabel(s);        
+#endif
+                }
+            }
+
+            //fprintf(g_logfile,"resetting callsign %s %ld\n", m_callsign, m_pcallsign-m_callsign);
+            // reset ptr to start of string
+            m_pcallsign = m_callsign;
+        }
+        else {
+            //fprintf(g_logfile, "new char %d %c\n", ashort, (char)ashort);
+            *m_pcallsign++ = (char)ashort;
+        }
+
+        /* If checksums disabled, display txt chars as they arrive */
+
+        if (!wxGetApp().m_enable_checksum) {
+            m_txtCtrlCallSign->SetValue(m_callsign);
+        }
+    }
+
+
+    // Run time update of EQ filters -----------------------------------
+
+    if (m_newMicInFilter || m_newSpkOutFilter) {
+        g_mutexProtectingCallbackData.Lock();
+        deleteEQFilters(g_rxUserdata);
+        designEQFilters(g_rxUserdata);
+        g_mutexProtectingCallbackData.Unlock();
+        m_newMicInFilter = m_newSpkOutFilter = false;
+    }
+    g_rxUserdata->micInEQEnable = wxGetApp().m_MicInEQEnable;
+    g_rxUserdata->spkOutEQEnable = wxGetApp().m_SpkOutEQEnable;
+
+
+    if (g_mode != -1)  {
+
+        // Run time update of FreeDV 700 tx clipper
+
+        freedv_set_clip(g_pfreedv, (int)wxGetApp().m_FreeDV700txClip);
+        
+        // Test Frame Bit Error Updates ------------------------------------
+
+        // Toggle test frame mode at run time
+
+        if (!freedv_get_test_frames(g_pfreedv) && wxGetApp().m_testFrames) {
+
+            // reset stats on check box off to on transition
+
+            freedv_set_test_frames(g_pfreedv, 1);
+            freedv_set_total_bits(g_pfreedv, 0);
+            freedv_set_total_bit_errors(g_pfreedv, 0);
+        }
+        freedv_set_test_frames(g_pfreedv, wxGetApp().m_testFrames);
+        freedv_set_test_frames_diversity(g_pfreedv, wxGetApp().m_FreeDV700Combine);
+        g_channel_noise =  wxGetApp().m_channel_noise;
+
+        if (g_State) {
+            char bits[80], errors[80], ber[80], resyncs[80];
+
+            // update stats on main page
+
+            sprintf(bits, "Bits: %d", freedv_get_total_bits(g_pfreedv)); wxString bits_string(bits); m_textBits->SetLabel(bits_string);
+            sprintf(errors, "Errs: %d", freedv_get_total_bit_errors(g_pfreedv)); wxString errors_string(errors); m_textErrors->SetLabel(errors_string);
+            float b = (float)freedv_get_total_bit_errors(g_pfreedv)/(1E-6+freedv_get_total_bits(g_pfreedv));
+            sprintf(ber, "BER: %4.3f", b); wxString ber_string(ber); m_textBER->SetLabel(ber_string);
+            sprintf(resyncs, "Resyncs: %d", g_resyncs); wxString resyncs_string(resyncs); m_textResyncs->SetLabel(resyncs_string);
+
+            // update error pattern plots if supported
+
+            int sz_error_pattern = freedv_get_sz_error_pattern(g_pfreedv);
+            //fprintf(stderr, "sz_error_pattern: %d\n", sz_error_pattern);
+            if (sz_error_pattern) {
+                short error_pattern[sz_error_pattern];
+
+                if (fifo_read(g_error_pattern_fifo, error_pattern, sz_error_pattern) == 0) {
+                    int i,b;
+
+                    /* both modes map IQ to alternate bits, but on same carrier */
+
+                    if (freedv_get_mode(g_pfreedv) == FREEDV_MODE_1600) {
+                        /* FreeDV 1600 mapping from error pattern to two bits on each carrier */
+
+                        for(b=0; b<g_Nc*2; b++) {
+                            for(i=b; i<sz_error_pattern; i+= 2*g_Nc) {
+                                m_panelTestFrameErrors->add_new_sample(b, b + 0.8*error_pattern[i]);
+                                g_error_hist[b] += error_pattern[i];
+                                g_error_histn[b]++;
+                            }
+                            //if (b%2)
+                            //    printf("g_error_hist[%d]: %d\n", b/2, g_error_hist[b/2]);
+                        }
+
+                         /* calculate BERs and send to plot */
+
+                        float ber[2*FDMDV_NC_MAX];
+                        for(b=0; b<2*FDMDV_NC_MAX; b++) {
+                            ber[b] = 0.0;
+                        }
+                        for(b=0; b<g_Nc*2; b++) {
+                            ber[b+1] = (float)g_error_hist[b]/g_error_histn[b];
+                        }
+                        assert(g_Nc*2 <= 2*FDMDV_NC_MAX);
+                        m_panelTestFrameErrorsHist->add_new_samples(0, ber, 2*FDMDV_NC_MAX);
+                    }
+       
+                    if (/*(freedv_get_mode(g_pfreedv) == FREEDV_MODE_700B) || */(freedv_get_mode(g_pfreedv) == FREEDV_MODE_700C)) {
+                        int c;
+                        //fprintf(stderr, "after g_error_pattern_fifo read 2\n");
+                        
+                        /* 
+                           FreeDV 700 mapping from error pattern to bit on each carrier, see 
+                           data bit to carrier mapping in:
+
+                              codec2-dev/octave/cohpsk_frame_design.ods
+ 
+                           We can plot a histogram of the errors/carrier before or after diversity
+                           recombination.  Actually one bar for each IQ bit in carrier order.
+                        */
+
+                        int hist_Nc = sz_error_pattern/4;
+                        //fprintf(stderr, "hist_Nc: %d\n", hist_Nc);
+
+                        for(i=0; i<sz_error_pattern; i++) {
+                            /* maps to IQ bits from each symbol to a "carrier" (actually one line for each IQ bit in carrier order) */
+                            c = floor(i/4);
+                            /* this will clock in 4 bits/carrier to plot */
+                            m_panelTestFrameErrors->add_new_sample(c, c + 0.8*error_pattern[i]);
+                            g_error_hist[c] += error_pattern[i];
+                            g_error_histn[c]++;
+                            //printf("i: %d c: %d\n", i, c);
+                        }
+                        for(; i<2*MODEM_STATS_NC_MAX*4; i++) {
+                            c = floor(i/4);
+                            m_panelTestFrameErrors->add_new_sample(c, c);
+                            //printf("i: %d c: %d\n", i, c);
+                        }
+
+                        /* calculate BERs and send to plot */
+
+                        float ber[2*FDMDV_NC_MAX];
+                        for(b=0; b<2*FDMDV_NC_MAX; b++) {
+                            ber[b] = 0.0;
+                        }
+                        for(b=0; b<hist_Nc; b++) {
+                            ber[b+1] = (float)g_error_hist[b]/g_error_histn[b];
+                        }
+                        assert(hist_Nc <= 2*FDMDV_NC_MAX);
+                        m_panelTestFrameErrorsHist->add_new_samples(0, ber, 2*FDMDV_NC_MAX);
+                    }
+ 
+                    m_panelTestFrameErrors->Refresh();       
+                    m_panelTestFrameErrorsHist->Refresh();
+                }
+            }
+        }
+    }
+
+    // command from UDP thread that is best processed in main thread to avoid seg faults
+
+    if (m_schedule_restore) {
+        if (IsIconized())
+            Restore();
+        m_schedule_restore = false;
+    }
+
+#ifdef __UDP_EXPERIMENTAL__
+    // Light Spam Timer LED if at least one timer is running
+
+    int i;
+    optionsDlg->SetSpamTimerLight(false);
+    for(i=0; i<MAX_EVENT_RULES; i++)
+        if (spamTimer[i].IsRunning())
+            optionsDlg->SetSpamTimerLight(true);        
+#endif
+
+    // Blink file playback status line
+
+    if (g_playFileFromRadio) {
+        g_blink += DT;
+        //fprintf(g_logfile, "g_blink: %f\n", g_blink);
+        if ((g_blink >= 1.0) && (g_blink < 2.0))
+            SetStatusText(wxT("Playing into from radio"), 0);
+        if (g_blink >= 2.0) {
+            SetStatusText(wxT(""), 0);
+            g_blink = 0.0;
+        }
+    }
+
+    // Voice Keyer state machine
+
+    VoiceKeyerProcessEvent(VK_DT);
+}
+#endif
+
+
+//-------------------------------------------------------------------------
+// OnCloseFrame()
+//-------------------------------------------------------------------------
+void MainFrame::OnCloseFrame(wxCloseEvent& event)
+{
+    fprintf(stderr, "MainFrame::OnCloseFrame()\n");
+    Pa_Terminate();
+    Destroy();
+}
+
+//-------------------------------------------------------------------------
+// OnTop()
+//-------------------------------------------------------------------------
+void MainFrame::OnTop(wxCommandEvent& event)
+{
+    int style = GetWindowStyle();
+
+    if (style & wxSTAY_ON_TOP)
+    {
+        style &= ~wxSTAY_ON_TOP;
+    }
+    else
+    {
+        style |= wxSTAY_ON_TOP;
+    }
+    SetWindowStyle(style);
+}
+
+//-------------------------------------------------------------------------
+// OnDeleteConfig()
+//-------------------------------------------------------------------------
+void MainFrame::OnDeleteConfig(wxCommandEvent&)
+{
+    wxConfigBase *pConfig = wxConfigBase::Get();
+    if(pConfig->DeleteAll())
+    {
+        wxLogMessage(wxT("Config file/registry key successfully deleted."));
+
+        delete wxConfigBase::Set(NULL);
+        wxConfigBase::DontCreateOnDemand();
+    }
+    else
+    {
+        wxLogError(wxT("Deleting config file/registry key failed."));
+    }
+}
+
+//-------------------------------------------------------------------------
+// Paint()
+//-------------------------------------------------------------------------
+void MainFrame::OnPaint(wxPaintEvent& WXUNUSED(event))
+{
+    wxPaintDC dc(this);
+
+    if(GetMenuBar()->IsChecked(ID_PAINT_BG))
+    {
+        dc.Clear();
+    }
+    dc.SetUserScale(m_zoom, m_zoom);
+}
+
+//-------------------------------------------------------------------------
+// OnCmdSliderScroll()
+//-------------------------------------------------------------------------
+void MainFrame::OnCmdSliderScroll(wxScrollEvent& event)
+{
+    char sqsnr[15];
+    g_SquelchLevel = (float)m_sliderSQ->GetValue()/2.0 - 5.0;   
+    sprintf(sqsnr, "%4.1f", g_SquelchLevel); // 0.5 dB steps
+    wxString sqsnr_string(sqsnr);
+    m_textSQ->SetLabel(sqsnr_string);
+
+    event.Skip();
+}
+
+//-------------------------------------------------------------------------
+// OnCheckSQClick()
+//-------------------------------------------------------------------------
+void MainFrame::OnCheckSQClick(wxCommandEvent& event)
+{
+    if(!g_SquelchActive)
+    {
+        g_SquelchActive = true;
+    }
+    else
+    {
+        g_SquelchActive = false;
+    }
+}
+
+void MainFrame::setsnrBeta(bool snrSlow)
+{
+    if(snrSlow)
+    {
+        m_snrBeta = 0.95; // make this closer to 1.0 to smooth SNR est further
+    }
+    else
+    {
+        m_snrBeta = 0.0; // no smoothing of SNR estimate from demodulator
+    }
+}
+
+//-------------------------------------------------------------------------
+// OnCheckSQClick()
+//-------------------------------------------------------------------------
+void MainFrame::OnCheckSNRClick(wxCommandEvent& event)
+{
+    wxGetApp().m_snrSlow = m_ckboxSNR->GetValue();
+    setsnrBeta(wxGetApp().m_snrSlow);
+    //printf("m_snrSlow: %d\n", (int)wxGetApp().m_snrSlow);
+}
+
+// check for space bar press (only when running)
+
+int MainApp::FilterEvent(wxEvent& event)
+{
+    if ((event.GetEventType() == wxEVT_KEY_DOWN) && 
+        (((wxKeyEvent&)event).GetKeyCode() == WXK_SPACE))
+        {
+            // only use space to toggle PTT if we are running and no modal dialogs (like options) up
+            //fprintf(stderr,"frame->m_RxRunning: %d g_modal: %d\n",
+            //        frame->m_RxRunning, g_modal);
+            if (frame->m_RxRunning && !g_modal) {
+
+                // space bar controls rx/rx if keyer not running
+                if (frame->vk_state == VK_IDLE) {
+                    if (frame->m_btnTogPTT->GetValue())
+                        frame->m_btnTogPTT->SetValue(false);
+                    else
+                        frame->m_btnTogPTT->SetValue(true);
+
+                    frame->togglePTT();
+                }
+                else // spavce bar stops keyer
+                    frame->VoiceKeyerProcessEvent(VK_SPACE_BAR);
+                    
+                return true; // absorb space so we don't toggle control with focus (e.g. Start)
+
+            }
+        }
+
+    return -1;
+}
+
+//-------------------------------------------------------------------------
+// OnTogBtnPTT ()
+//-------------------------------------------------------------------------
+void MainFrame::OnTogBtnPTT (wxCommandEvent& event)
+{
+    togglePTT();
+    event.Skip();
+}
+
+void MainFrame::togglePTT(void) {
+
+    // Change tabbed page in centre panel depending on PTT state
+
+    if (g_tx)
+    {
+        // tx-> rx transition, swap to the page we were on for last rx
+        m_auiNbookCtrl->ChangeSelection(wxGetApp().m_rxNbookCtrl);
+    }
+    else
+    {
+        // rx-> tx transition, swap to Mic In page to monitor speech
+        wxGetApp().m_rxNbookCtrl = m_auiNbookCtrl->GetSelection();
+        m_auiNbookCtrl->ChangeSelection(m_auiNbookCtrl->GetPageIndex((wxWindow *)m_panelSpeechIn));
+#ifdef __UDP_EXPERIMENTAL__
+        char e[80]; sprintf(e,"ptt"); processTxtEvent(e);
+#endif
+    }
+
+    g_tx = m_btnTogPTT->GetValue();
+
+    // Hamlib PTT
+
+    if (wxGetApp().m_boolHamlibUseForPTT) {        
+        Hamlib *hamlib = wxGetApp().m_hamlib; 
+        wxString hamlibError;
+        if (wxGetApp().m_boolHamlibUseForPTT && hamlib != NULL) {
+            if (hamlib->ptt(g_tx, hamlibError) == false) {
+                wxMessageBox(wxString("Hamlib PTT Error: ") + hamlibError, wxT("Error"), wxOK | wxICON_ERROR, this);
+            }
+        }
+    }
+
+    // Serial PTT
+
+    if (wxGetApp().m_boolUseSerialPTT && (wxGetApp().m_serialport->isopen())) {
+        wxGetApp().m_serialport->ptt(g_tx);
+    }
+
+    // reset level gauge
+
+    m_maxLevel = 0;
+    m_textLevel->SetLabel(wxT(""));
+    m_gaugeLevel->SetValue(0);
+}
+
+/*
+   Voice Keyer:
+
+   + space bar turns keyer off
+   + 5 secs of valid sync turns it off
+
+   [X] complete state machine and builds OK
+   [ ] file select dialog
+   [ ] test all states
+   [ ] restore size
+*/
+
+void MainFrame::OnTogBtnVoiceKeyerClick (wxCommandEvent& event)
+{
+    if (vk_state == VK_IDLE)
+        VoiceKeyerProcessEvent(VK_START);
+    else
+        VoiceKeyerProcessEvent(VK_SPACE_BAR);
+        
+    event.Skip();
+}
+
+
+int MainFrame::VoiceKeyerStartTx(void)
+{
+    int next_state;
+
+    // start playing wave file or die trying
+
+    SF_INFO sfInfo;
+    sfInfo.format = 0;
+
+    g_sfPlayFile = sf_open(wxGetApp().m_txtVoiceKeyerWaveFile, SFM_READ, &sfInfo);
+    if(g_sfPlayFile == NULL) {
+        wxString strErr = sf_strerror(NULL);
+        wxMessageBox(strErr, wxT("Couldn't open:") + wxGetApp().m_txtVoiceKeyerWaveFile, wxOK);
+        m_togBtnVoiceKeyer->SetValue(false);
+        next_state = VK_IDLE;
+    }
+    else {
+        SetStatusText(wxT("Voice Keyer: Playing File") + wxGetApp().m_txtVoiceKeyerWaveFile + wxT(" to Mic Input") , 0);
+        g_loopPlayFileToMicIn = false;
+        g_playFileToMicIn = true;
+
+        m_btnTogPTT->SetValue(true); togglePTT();
+        next_state = VK_TX;
+    }
+
+    return next_state;
+}
+
+
+void MainFrame::VoiceKeyerProcessEvent(int vk_event) {
+    int next_state = vk_state;
+
+    switch(vk_state) {
+
+    case VK_IDLE:
+        if (vk_event == VK_START) {
+            // sample these puppies at start just in case they are changed while VK running
+            vk_rx_pause = wxGetApp().m_intVoiceKeyerRxPause;
+            vk_repeats = wxGetApp().m_intVoiceKeyerRepeats;
+            fprintf(stderr, "vk_rx_pause: %d vk_repeats: %d\n", vk_rx_pause, vk_repeats);
+
+            vk_repeat_counter = 0;
+            next_state = VoiceKeyerStartTx();
+        }
+        break;
+        
+     case VK_TX:
+
+        // In this state we are transmitting and playing a wave file
+        // to Mic In
+
+        if (vk_event == VK_SPACE_BAR) {
+            m_btnTogPTT->SetValue(false); togglePTT();
+            StopPlayFileToMicIn();
+            m_togBtnVoiceKeyer->SetValue(false);
+            next_state = VK_IDLE;
+        }
+
+        if (vk_event == VK_PLAY_FINISHED) {
+            m_btnTogPTT->SetValue(false); togglePTT();
+            vk_repeat_counter++;
+            if (vk_repeat_counter > vk_repeats) {
+                m_togBtnVoiceKeyer->SetValue(false);
+                next_state = VK_IDLE;
+            }
+            else {
+                vk_rx_time = 0.0;
+                next_state = VK_RX;
+            }
+        }
+
+        break;
+
+     case VK_RX:
+
+        // in this state we are receiving and waiting for
+        // delay timer or valid sync
+
+        if (vk_event == VK_DT) {
+            if (freedv_get_sync(g_pfreedv) == 1) {
+                // if we detect sync simulate a smooth transition to SYNC_WAIT State - TODO: review
+                if (vk_rx_time >= DT) {
+                    vk_rx_time -= DT;
+                } else {
+                    next_state = VK_SYNC_WAIT;
+                }
+            } else {
+                vk_rx_time += DT;
+                if (vk_rx_time >= vk_rx_pause) {
+                    next_state = VoiceKeyerStartTx();
+                }
+            }
+        }
+
+        if (vk_event == VK_SPACE_BAR) {
+            m_togBtnVoiceKeyer->SetValue(false);
+            next_state = VK_IDLE;
+        }
+
+        break;
+
+     case VK_SYNC_WAIT:
+
+        // In this state we wait for valid sync to last
+        // VK_SYNC_WAIT_TIME seconds
+
+        if (vk_event == VK_SPACE_BAR) {
+            m_togBtnVoiceKeyer->SetValue(false);
+            next_state = VK_IDLE;
+        }
+
+        if (vk_event == VK_DT) {
+            if (freedv_get_sync(g_pfreedv) == 0) {
+                // if we lose sync simulate a smooth transition to return in RX State - TODO: review
+                if (vk_rx_time >= DT) {
+                    vk_rx_time -= DT;
+                } else {
+                    next_state = VK_RX;
+                }
+            } else {
+                vk_rx_time += DT;
+            }
+
+            // drop out of voice keyer if we get a few seconds of valid sync
+
+            if (vk_rx_time >= VK_SYNC_WAIT_TIME) {
+                m_togBtnVoiceKeyer->SetValue(false);
+                next_state = VK_IDLE;
+            }
+        }
+        break;
+
+    default:
+        // catch anything we missed
+
+        m_btnTogPTT->SetValue(false); togglePTT();
+        m_togBtnVoiceKeyer->SetValue(false);
+        next_state = VK_IDLE;
+    }
+
+    //if ((vk_event != VK_DT) || (vk_state != next_state))
+    //    fprintf(stderr, "VoiceKeyerProcessEvent: vk_state: %d vk_event: %d next_state: %d  vk_repeat_counter: %d\n", vk_state, vk_event, next_state, vk_repeat_counter);
+    vk_state = next_state;
+}
+
+
+//-------------------------------------------------------------------------
+// OnTogBtnRxID()
+//-------------------------------------------------------------------------
+void MainFrame::OnTogBtnRxID(wxCommandEvent& event)
+{
+    // empty any junk in rx data FIFO
+    short junk;
+    while(fifo_read(g_rxDataOutFifo,&junk,1) == 0);
+    event.Skip();
+}
+
+//-------------------------------------------------------------------------
+// OnTogBtnTxID()
+//-------------------------------------------------------------------------
+void MainFrame::OnTogBtnTxID(wxCommandEvent& event)
+{
+    event.Skip();
+}
+
+void MainFrame::OnTogBtnSplitClick(wxCommandEvent& event) {
+    if (g_split)
+        g_split = 0;
+    else
+        g_split = 1;
+    event.Skip();
+}
+
+//-------------------------------------------------------------------------
+// OnTogBtnAnalogClick()
+//-------------------------------------------------------------------------
+void MainFrame::OnTogBtnAnalogClick (wxCommandEvent& event)
+{
+    if (g_analog == 0) {
+        g_analog = 1;
+        m_panelSpectrum->setFreqScale(MODEM_STATS_NSPEC*((float)MAX_F_HZ/(FS/2)));
+        m_panelWaterfall->setFs(FS);
+    }
+    else {
+        g_analog = 0;
+        m_panelSpectrum->setFreqScale(MODEM_STATS_NSPEC*((float)MAX_F_HZ/(freedv_get_modem_sample_rate(g_pfreedv)/2)));
+        m_panelWaterfall->setFs(freedv_get_modem_sample_rate(g_pfreedv));
+    }
+
+    g_State = g_prev_State = 0;
+    g_stats.snr_est = 0;
+
+    event.Skip();
+}
+
+void MainFrame::OnCallSignReset(wxCommandEvent& event)
+{
+    m_pcallsign = m_callsign;
+    memset(m_callsign, 0, MAX_CALLSIGN);
+    wxString s;
+    s.Printf("%s", m_callsign);
+    m_txtCtrlCallSign->SetValue(s);
+#ifdef __UDP__EXPERIMENTAL__
+    m_checksumGood = m_checksumBad = 0;
+    m_txtChecksumGood->SetLabel(_("0"));
+    m_txtChecksumBad->SetLabel(_("0"));
+#endif
+}
+
+void MainFrame::OnBerReset(wxCommandEvent& event)
+{
+    freedv_set_total_bits(g_pfreedv, 0);
+    freedv_set_total_bit_errors(g_pfreedv, 0);
+    g_resyncs = 0;
+    int i;
+    for(i=0; i<2*g_Nc; i++) {
+        g_error_hist[i] = 0;
+        g_error_histn[i] = 0;
+    }
+    
+}
+
+#ifdef ALC
+//-------------------------------------------------------------------------
+// OnTogBtnALCClick()
+//-------------------------------------------------------------------------
+void MainFrame::OnTogBtnALCClick(wxCommandEvent& event)
+{
+    wxMessageBox(wxT("Got Click!"), wxT("OnTogBtnALCClick"), wxOK);
+
+    event.Skip();
+}
+#endif
+
+// extra panel added to file open dialog to add loop checkbox
+MyExtraPlayFilePanel::MyExtraPlayFilePanel(wxWindow *parent): wxPanel(parent)
+{
+    m_cb = new wxCheckBox(this, -1, wxT("Loop"));
+    m_cb->SetToolTip(_("When checked file will repeat forever"));
+    m_cb->SetValue(g_loopPlayFileToMicIn);
+
+    // bug: I can't this to align right.....
+    wxBoxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
+    sizerTop->Add(m_cb, 0, wxALIGN_RIGHT, 0);
+    SetSizerAndFit(sizerTop);
+}
+
+static wxWindow* createMyExtraPlayFilePanel(wxWindow *parent)
+{
+    return new MyExtraPlayFilePanel(parent);
+}
+
+void MainFrame::StopPlayFileToMicIn(void)
+{
+    g_mutexProtectingCallbackData.Lock();
+    g_playFileToMicIn = false;
+    sf_close(g_sfPlayFile);
+    SetStatusText(wxT(""));
+    g_mutexProtectingCallbackData.Unlock();
+}
+
+//-------------------------------------------------------------------------
+// OnPlayFileToMicIn()
+//-------------------------------------------------------------------------
+void MainFrame::OnPlayFileToMicIn(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+
+    if(g_playFileToMicIn) {
+        StopPlayFileToMicIn();
+        VoiceKeyerProcessEvent(VK_PLAY_FINISHED);
+    }
+    else
+    {
+        wxString    soundFile;
+        SF_INFO     sfInfo;
+
+        wxFileDialog openFileDialog(
+                                    this,
+                                    wxT("Play File to Mic In"),
+                                    wxGetApp().m_playFileToMicInPath,
+                                    wxEmptyString,
+                                    wxT("WAV and RAW files (*.wav;*.raw)|*.wav;*.raw|")
+                                    wxT("All files (*.*)|*.*"),
+                                    wxFD_OPEN | wxFD_FILE_MUST_EXIST
+                                    );
+
+        // add the loop check box
+        openFileDialog.SetExtraControlCreator(&createMyExtraPlayFilePanel);
+
+        if(openFileDialog.ShowModal() == wxID_CANCEL)
+        {
+            return;     // the user changed their mind...
+        }
+
+        wxString fileName, extension;
+        soundFile = openFileDialog.GetPath();
+        wxFileName::SplitPath(soundFile, &wxGetApp().m_playFileToMicInPath, &fileName, &extension);
+        //wxLogDebug("m_playFileToMicInPath: %s", wxGetApp().m_playFileToMicInPath);
+        sfInfo.format = 0;
+
+        if(!extension.IsEmpty())
+        {
+            extension.LowerCase();
+            if(extension == wxT("raw"))
+            {
+                sfInfo.format     = SF_FORMAT_RAW | SF_FORMAT_PCM_16;
+                sfInfo.channels   = 1;
+                sfInfo.samplerate = FS;
+            }
+        }
+        g_sfPlayFile = sf_open(soundFile.c_str(), SFM_READ, &sfInfo);
+        if(g_sfPlayFile == NULL)
+        {
+            wxString strErr = sf_strerror(NULL);
+            wxMessageBox(strErr, wxT("Couldn't open sound file"), wxOK);
+            return;
+        }
+
+        wxWindow * const ctrl = openFileDialog.GetExtraControl();
+
+        // Huh?! I just copied wxWidgets-2.9.4/samples/dialogs ....
+        g_loopPlayFileToMicIn = static_cast<MyExtraPlayFilePanel*>(ctrl)->getLoopPlayFileToMicIn();
+
+        SetStatusText(wxT("Playing File: ") + fileName + wxT(" to Mic Input") , 0);
+        g_playFileToMicIn = true;
+    }
+}
+
+//-------------------------------------------------------------------------
+// OnPlayFileFromRadio()
+// This puppy "plays" a recorded file into the demodulator input, allowing us
+// to replay off air signals.
+//-------------------------------------------------------------------------
+void MainFrame::OnPlayFileFromRadio(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+
+    printf("OnPlayFileFromRadio:: %d\n", (int)g_playFileFromRadio);
+    if (g_playFileFromRadio)
+    {
+        printf("OnPlayFileFromRadio:: Stop\n");
+        g_mutexProtectingCallbackData.Lock();
+        g_playFileFromRadio = false;
+        sf_close(g_sfPlayFileFromRadio);
+        SetStatusText(wxT(""),0);
+        SetStatusText(wxT(""),1);
+        g_mutexProtectingCallbackData.Unlock();
+    }
+    else
+    {
+        wxString    soundFile;
+        SF_INFO     sfInfo;
+
+        wxFileDialog openFileDialog(
+                                    this,
+                                    wxT("Play File - From Radio"),
+                                    wxGetApp().m_playFileFromRadioPath,
+                                    wxEmptyString,
+                                    wxT("WAV and RAW files (*.wav;*.raw)|*.wav;*.raw|")
+                                    wxT("All files (*.*)|*.*"),
+                                    wxFD_OPEN | wxFD_FILE_MUST_EXIST
+                                    );
+
+        // add the loop check box
+        openFileDialog.SetExtraControlCreator(&createMyExtraPlayFilePanel);
+
+        if(openFileDialog.ShowModal() == wxID_CANCEL)
+        {
+            return;     // the user changed their mind...
+        }
+
+        wxString fileName, extension;
+        soundFile = openFileDialog.GetPath();
+        wxFileName::SplitPath(soundFile, &wxGetApp().m_playFileFromRadioPath, &fileName, &extension);
+        //wxLogDebug("m_playFileToFromRadioPath: %s", wxGetApp().m_playFileFromRadioPath);
+        sfInfo.format = 0;
+
+        if(!extension.IsEmpty())
+        {
+            extension.LowerCase();
+            if(extension == wxT("raw"))
+            {
+                sfInfo.format     = SF_FORMAT_RAW | SF_FORMAT_PCM_16;
+                sfInfo.channels   = 1;
+                sfInfo.samplerate = freedv_get_modem_sample_rate(g_pfreedv);
+            }
+        }
+        g_sfPlayFileFromRadio = sf_open(soundFile.c_str(), SFM_READ, &sfInfo);
+        g_sfFs = sfInfo.samplerate;
+        if(g_sfPlayFileFromRadio == NULL)
+        {
+            wxString strErr = sf_strerror(NULL);
+            wxMessageBox(strErr, wxT("Couldn't open sound file"), wxOK);
+            return;
+        }
+
+        wxWindow * const ctrl = openFileDialog.GetExtraControl();
+
+        // Huh?! I just copied wxWidgets-2.9.4/samples/dialogs ....
+        g_loopPlayFileFromRadio = static_cast<MyExtraPlayFilePanel*>(ctrl)->getLoopPlayFileToMicIn();
+
+        SetStatusText(wxT("Playing into from radio"), 0);
+        if(extension == wxT("raw")) {
+            wxString stringnumber = wxString::Format(wxT("%d"), (int)sfInfo.samplerate);
+            SetStatusText(wxT("raw file assuming Fs=") + stringnumber, 1);          
+        }
+        fprintf(g_logfile, "OnPlayFileFromRadio:: Playing File\n");
+        g_playFileFromRadio = true;
+        g_blink = 0.0;
+    }
+}
+
+// extra panel added to file save dialog to set number of seconds to record for
+
+MyExtraRecFilePanel::MyExtraRecFilePanel(wxWindow *parent): wxPanel(parent)
+{
+    wxBoxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
+
+    wxStaticText* staticText = new wxStaticText(this, wxID_ANY, _("Seconds:"), wxDefaultPosition, wxDefaultSize, 0);
+    sizerTop->Add(staticText, 0, wxALIGN_CENTER_VERTICAL|wxALL, 5);
+    m_secondsToRecord = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, 0);
+    m_secondsToRecord->SetToolTip(_("Number of seconds to record for"));
+    m_secondsToRecord->SetValue(wxString::Format(wxT("%i"), wxGetApp().m_recFileFromRadioSecs));
+    sizerTop->Add(m_secondsToRecord, 0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxALL, 5);
+    SetSizerAndFit(sizerTop);
+}
+
+static wxWindow* createMyExtraRecFilePanel(wxWindow *parent)
+{
+    return new MyExtraRecFilePanel(parent);
+}
+
+//-------------------------------------------------------------------------
+// OnRecFileFromRadio()
+//-------------------------------------------------------------------------
+void MainFrame::OnRecFileFromRadio(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+
+    if (g_recFileFromRadio) {
+        printf("Stopping Record....\n");
+        g_mutexProtectingCallbackData.Lock();
+        g_recFileFromRadio = false;
+        sf_close(g_sfRecFile);
+        SetStatusText(wxT(""));
+        g_mutexProtectingCallbackData.Unlock();
+    }
+    else {
+
+        wxString    soundFile;
+        SF_INFO     sfInfo;
+
+         wxFileDialog openFileDialog(
+                                    this,
+                                    wxT("Record File From Radio"),
+                                    wxGetApp().m_recFileFromRadioPath,
+                                    wxEmptyString,
+                                    wxT("WAV and RAW files (*.wav;*.raw)|*.wav;*.raw|")
+                                    wxT("All files (*.*)|*.*"),
+                                    wxFD_SAVE
+                                    );
+
+        // add the loop check box
+        openFileDialog.SetExtraControlCreator(&createMyExtraRecFilePanel);
+
+        if(openFileDialog.ShowModal() == wxID_CANCEL)
+        {
+            return;     // the user changed their mind...
+        }
+
+        wxString fileName, extension;
+        soundFile = openFileDialog.GetPath();
+        wxFileName::SplitPath(soundFile, &wxGetApp().m_recFileFromRadioPath, &fileName, &extension);
+        wxLogDebug("m_recFileFromRadioPath: %s", wxGetApp().m_recFileFromRadioPath);
+        wxLogDebug("soundFile: %s", soundFile);
+        sfInfo.format = 0;
+
+        if(!extension.IsEmpty())
+        {
+            extension.LowerCase();
+            if(extension == wxT("raw"))
+            {
+                sfInfo.format     = SF_FORMAT_RAW | SF_FORMAT_PCM_16;
+                sfInfo.channels   = 1;
+                sfInfo.samplerate = freedv_get_modem_sample_rate(g_pfreedv);
+            }
+            else if(extension == wxT("wav"))
+            {
+                sfInfo.format     = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
+                sfInfo.channels   = 1;
+                sfInfo.samplerate = freedv_get_modem_sample_rate(g_pfreedv);
+            } else {
+                wxMessageBox(wxT("Invalid file format"), wxT("Record File From Radio"), wxOK);
+                return;
+            }
+        }
+        else {
+            wxMessageBox(wxT("Invalid file format"), wxT("Record File From Radio"), wxOK);
+            return;
+        }
+
+        // Bug: on Win32 I cant read m_recFileFromRadioSecs, so have hard coded it
+#ifdef __WIN32__
+        long secs = wxGetApp().m_recFileFromRadioSecs;
+        g_recFromRadioSamples = FS*(unsigned int)secs;
+#else
+        // work out number of samples to record
+
+        wxWindow * const ctrl = openFileDialog.GetExtraControl();
+        wxString secsString = static_cast<MyExtraRecFilePanel*>(ctrl)->getSecondsToRecord();
+        wxLogDebug("test: %s secsString: %s\n", wxT("testing 123"), secsString);
+
+        long secs;
+        if (secsString.ToLong(&secs)) {
+            wxGetApp().m_recFileFromRadioSecs = (unsigned int)secs;
+            //printf(" secondsToRecord: %d\n",  (unsigned int)secs);
+            g_recFromRadioSamples = FS*(unsigned int)secs;
+            //printf("g_recFromRadioSamples: %d\n", g_recFromRadioSamples);
+        }
+        else {
+            wxMessageBox(wxT("Invalid number of Seconds"), wxT("Record File From Radio"), wxOK);
+            return;
+        }
+#endif
+
+        g_sfRecFile = sf_open(soundFile.c_str(), SFM_WRITE, &sfInfo);
+        if(g_sfRecFile == NULL)
+        {
+            wxString strErr = sf_strerror(NULL);
+            wxMessageBox(strErr, wxT("Couldn't open sound file"), wxOK);
+            return;
+        }
+
+        SetStatusText(wxT("Recording File: ") + fileName + wxT(" From Radio") , 0);
+        g_recFileFromRadio = true;
+    }
+
+}
+
+//-------------------------------------------------------------------------
+// OnExit()
+//-------------------------------------------------------------------------
+void MainFrame::OnExit(wxCommandEvent& event)
+{
+    fprintf(stderr, "MainFrame::OnExit\n");
+    wxUnusedVar(event);
+#ifdef _USE_TIMER
+    m_plotTimer.Stop();
+#endif // _USE_TIMER
+    if(g_sfPlayFile != NULL)
+    {
+        sf_close(g_sfPlayFile);
+        g_sfPlayFile = NULL;
+    }
+    if(g_sfRecFile != NULL)
+    {
+        sf_close(g_sfRecFile);
+        g_sfRecFile = NULL;
+    }
+    if(m_RxRunning)
+    {
+        stopRxStream();
+    }
+    m_togBtnSplit->Disable();
+    //m_togRxID->Disable();
+    //m_togTxID->Disable();
+    m_togBtnAnalog->Disable();
+    //m_togBtnALC->Disable();
+    //m_btnTogPTT->Disable();
+    Pa_Terminate();
+    Destroy();
+}
+
+//-------------------------------------------------------------------------
+// OnExitClick()
+//-------------------------------------------------------------------------
+void MainFrame::OnExitClick(wxCommandEvent& event)
+{
+    OnExit(event);
+}
+
+//-------------------------------------------------------------------------
+// OnToolsAudio()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsAudio(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+    int rv = 0;
+    AudioOptsDialog *dlg = new AudioOptsDialog(NULL);
+    rv = dlg->ShowModal();
+    if(rv == wxID_OK)
+    {
+        dlg->ExchangeData(EXCHANGE_DATA_OUT);
+    }
+    delete dlg;
+}
+
+//-------------------------------------------------------------------------
+// OnToolsAudioUI()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsAudioUI(wxUpdateUIEvent& event)
+{
+    event.Enable(!m_RxRunning);
+}
+
+//-------------------------------------------------------------------------
+// OnToolsFilter()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsFilter(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+    FilterDlg *dlg = new FilterDlg(NULL, m_RxRunning, &m_newMicInFilter, &m_newSpkOutFilter);
+    dlg->ShowModal();
+    delete dlg;
+}
+
+//-------------------------------------------------------------------------
+// OnToolsOptions()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsOptions(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+    g_modal = true;
+    //fprintf(stderr,"g_modal: %d\n", g_modal);
+    optionsDlg->Show();
+}
+
+//-------------------------------------------------------------------------
+// OnToolsOptionsUI()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsOptionsUI(wxUpdateUIEvent& event)
+{
+}
+
+//-------------------------------------------------------------------------
+// OnToolsComCfg()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsComCfg(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+
+    ComPortsDlg *dlg = new ComPortsDlg(NULL);
+
+    dlg->ShowModal();
+
+    delete dlg;
+}
+
+//-------------------------------------------------------------------------
+// OnToolsComCfgUI()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsComCfgUI(wxUpdateUIEvent& event)
+{
+    event.Enable(!m_RxRunning);
+}
+
+//-------------------------------------------------------------------------
+// OnToolsPlugInCfg()
+//-------------------------------------------------------------------------
+void MainFrame::OnToolsPlugInCfg(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+    PlugInDlg *dlg = new PlugInDlg(wxGetApp().m_plugInName, wxGetApp().m_numPlugInParam, wxGetApp().m_plugInParamName);
+    dlg->ShowModal();
+    delete dlg;
+}
+               
+void MainFrame::OnToolsPlugInCfgUI(wxUpdateUIEvent& event)
+{
+    event.Enable(!m_RxRunning && wxGetApp().m_plugIn);
+}
+
+
+//-------------------------------------------------------------------------
+// OnHelpCheckUpdates()
+//-------------------------------------------------------------------------
+void MainFrame::OnHelpCheckUpdates(wxCommandEvent& event)
+{
+    wxMessageBox("Got Click!", "OnHelpCheckUpdates", wxOK);
+    event.Skip();
+}
+
+//-------------------------------------------------------------------------
+// OnHelpCheckUpdatesUI()
+//-------------------------------------------------------------------------
+void MainFrame::OnHelpCheckUpdatesUI(wxUpdateUIEvent& event)
+{
+    event.Enable(false);
+}
+
+//-------------------------------------------------------------------------
+//OnHelpAbout()
+//-------------------------------------------------------------------------
+void MainFrame::OnHelpAbout(wxCommandEvent& event)
+{
+    wxUnusedVar(event);
+    wxString msg;
+    msg.Printf( wxT("FreeDV %s\n\n")
+                wxT("Open Source Digital Voice\n\n")
+                wxT("For Help and Support visit: http://freedv.org\n\n")
+
+                wxT("GNU Public License V2.1\n\n")
+                wxT("Copyright (c) David Witten KD0EAG and David Rowe VK5DGR\n\n")
+                wxT("svn revision: %s\n"), FREEDV_VERSION, SVN_REVISION);
+
+    wxMessageBox(msg, wxT("About"), wxOK | wxICON_INFORMATION, this);
+}
+
+
+// Attempt to talk to rig using Hamlib
+
+bool MainFrame::OpenHamlibRig() {
+    if (wxGetApp().m_boolHamlibUseForPTT != true)
+       return false;
+    if (wxGetApp().m_intHamlibRig == 0)
+        return false;
+    if (wxGetApp().m_hamlib == NULL)
+        return false;
+
+    int rig = wxGetApp().m_intHamlibRig;
+    wxString port = wxGetApp().m_strHamlibSerialPort;
+    int serial_rate = wxGetApp().m_intHamlibSerialRate;
+    bool status = wxGetApp().m_hamlib->connect(rig, port.mb_str(wxConvUTF8), serial_rate);
+    if (status == false)
+        wxMessageBox("Couldn't connect to Radio with hamlib", wxT("Error"), wxOK | wxICON_ERROR, this);
+ 
+    return status;
+} 
+
+//-------------------------------------------------------------------------
+// OnTogBtnOnOff()
+//-------------------------------------------------------------------------
+void MainFrame::OnTogBtnOnOff(wxCommandEvent& event)
+{
+    wxString startStop = m_togBtnOnOff->GetLabel();
+
+    // we are attempting to start
+
+    if (startStop.IsSameAs("Start"))
+    {
+        //
+        // Start Running -------------------------------------------------
+        //
+
+        // modify some button states when running
+
+        m_togBtnSplit->Enable();
+        m_togBtnAnalog->Enable();
+        m_togBtnOnOff->SetLabel(wxT("Stop"));
+        m_btnTogPTT->Enable();
+        m_togBtnVoiceKeyer->Enable();
+        vk_state = VK_IDLE;
+
+        m_rb1600->Disable();
+        //m_rb700b->Disable();
+        m_rb700c->Disable();
+        m_rb800xa->Disable();
+        if (m_rbPlugIn != NULL)
+            m_rbPlugIn->Disable();
+
+        // determine what mode we are using
+
+        if (m_rb1600->GetValue()) {
+            g_mode = FREEDV_MODE_1600;
+            g_Nc = 16;
+            m_panelScatter->setNc(g_Nc+1);  /* +1 for BPSK pilot */
+        }
+        #ifdef DISABLED
+        if (m_rb700b->GetValue()) {
+            g_mode = FREEDV_MODE_700B;
+            g_Nc = 14;
+            if (wxGetApp().m_FreeDV700Combine) {
+                m_panelScatter->setNc(g_Nc/2);  /* diversity combnation */
+            }
+            else {
+                m_panelScatter->setNc(g_Nc); 
+            }
+        }
+        #endif
+        if (m_rb700c->GetValue()) {
+            g_mode = FREEDV_MODE_700C;
+            g_Nc = 14;
+            if (wxGetApp().m_FreeDV700Combine) {
+                m_panelScatter->setNc(g_Nc/2);  /* diversity combnation */
+            }
+            else {
+                m_panelScatter->setNc(g_Nc); 
+            }
+        }
+        if (m_rb800xa->GetValue()) {
+            g_mode = FREEDV_MODE_800XA;
+        }
+        if (m_rbPlugIn != NULL) {
+            if (m_rbPlugIn->GetValue()) {
+                g_mode = -1;  /* TODO; a better way of handling (enumarating?) non-freedv modes */
+
+                /* scale plots assuming Fs = 8000 Hz for now */
+
+                m_panelSpectrum->setFreqScale(MODEM_STATS_NSPEC*((float)MAX_F_HZ)/8000.0);
+                m_panelWaterfall->setFs(8000.0);
+
+                (wxGetApp().m_plugin_startfp)(wxGetApp().m_plugInStates);
+            }
+        }
+
+        if (g_mode != -1) { 
+            // init freedv states
+
+            g_pfreedv = freedv_open(g_mode);
+            freedv_set_callback_txt(g_pfreedv, &my_put_next_rx_char, &my_get_next_tx_char, NULL);
+
+            freedv_set_callback_error_pattern(g_pfreedv, my_freedv_put_error_pattern, (void*)m_panelTestFrameErrors);
+            g_error_pattern_fifo = fifo_create(2*freedv_get_sz_error_pattern(g_pfreedv)+1);
+            g_error_hist = new short[FDMDV_NC_MAX*2];
+            g_error_histn = new short[FDMDV_NC_MAX*2];
+            int i;
+            for(i=0; i<2*FDMDV_NC_MAX; i++) {
+                g_error_hist[i] = 0;
+                g_error_histn[i] = 0;
+            }
+
+            assert(g_pfreedv != NULL);
+
+            // init Codec 2 LPC Post Filter
+
+            codec2_set_lpc_post_filter(freedv_get_codec2(g_pfreedv),
+                                       wxGetApp().m_codec2LPCPostFilterEnable,
+                                       wxGetApp().m_codec2LPCPostFilterBassBoost,
+                                       wxGetApp().m_codec2LPCPostFilterBeta,
+                                       wxGetApp().m_codec2LPCPostFilterGamma);
+
+            // Init Speex pre-processor states
+            // by inspecting Speex source it seems that only denoiser is on be default
+
+            g_speex_st = speex_preprocess_state_init(freedv_get_n_speech_samples(g_pfreedv), FS); 
+
+            // adjust spectrum and waterfall freq scaling base on mode
+
+            m_panelSpectrum->setFreqScale(MODEM_STATS_NSPEC*((float)MAX_F_HZ/(freedv_get_modem_sample_rate(g_pfreedv)/2)));
+            m_panelWaterfall->setFs(freedv_get_modem_sample_rate(g_pfreedv));
+
+            // Init text msg decoding
+
+            freedv_set_varicode_code_num(g_pfreedv, wxGetApp().m_textEncoding);
+        }
+
+        modem_stats_open(&g_stats);
+        g_State = g_prev_State = 0;
+        g_snr = 0.0;
+        g_half_duplex = wxGetApp().m_boolHalfDuplex;
+
+        if (g_mode == FREEDV_MODE_800XA) {
+            m_panelScatter->setEyeScatter(PLOT_SCATTER_MODE_EYE);
+        }
+        else {
+            m_panelScatter->setEyeScatter(PLOT_SCATTER_MODE_SCATTER);
+        }
+
+        m_pcallsign = m_callsign;
+        memset(m_callsign, 0, sizeof(m_callsign));
+#ifdef __UDP_EXPERIMENTAL__
+        m_checksumGood = m_checksumBad = 0;
+        wxString s;
+        s.Printf("%d", m_checksumGood);
+        m_txtChecksumGood->SetLabel(s);              
+        s.Printf("%d", m_checksumBad);
+        m_txtChecksumBad->SetLabel(s);        
+#endif
+
+        m_maxLevel = 0;
+        m_textLevel->SetLabel(wxT(""));
+        m_gaugeLevel->SetValue(0);
+
+        //printf("m_textEncoding = %d\n", wxGetApp().m_textEncoding);
+        //printf("g_stats.snr: %f\n", g_stats.snr_est);
+
+        // attempt to start PTT ......
+        
+        if (wxGetApp().m_boolHamlibUseForPTT)
+            OpenHamlibRig();
+        if (wxGetApp().m_boolUseSerialPTT) {
+            OpenSerialPort();
+        }
+
+        // attempt to start sound cards and tx/rx processing
+
+        startRxStream();
+
+        if (m_RxRunning)
+        {
+#ifdef _USE_TIMER
+            m_plotTimer.Start(_REFRESH_TIMER_PERIOD, wxTIMER_CONTINUOUS);
+#endif // _USE_TIMER
+        }
+#ifdef __UDP_EXPERIMENTAL__
+        char e[80]; sprintf(e,"start"); processTxtEvent(e);
+#endif
+    }
+
+    // Stop was pressed or start up failed
+
+    if (startStop.IsSameAs("Stop") || !m_RxRunning ) {
+
+        //
+        // Stop Running -------------------------------------------------
+        //
+
+#ifdef __UDP_EXPERIMENTAL__
+        optionsDlg->SetSpamTimerLight(false);
+#endif
+
+#ifdef _USE_TIMER
+        m_plotTimer.Stop();
+#endif // _USE_TIMER
+
+        // ensure we are not transmitting and shut down audio processing
+
+        if (wxGetApp().m_boolHamlibUseForPTT) {
+            Hamlib *hamlib = wxGetApp().m_hamlib; 
+            wxString hamlibError;
+            if (wxGetApp().m_boolHamlibUseForPTT && hamlib != NULL) {
+                if (hamlib->ptt(false, hamlibError) == false) {
+                    wxMessageBox(wxString("Hamlib PTT Error: ") + hamlibError, wxT("Error"), wxOK | wxICON_ERROR, this);
+                }
+                hamlib->close();
+            }
+        }
+
+        if (wxGetApp().m_boolUseSerialPTT) {
+            CloseSerialPort();
+        }
+
+        m_btnTogPTT->SetValue(false);
+        VoiceKeyerProcessEvent(VK_SPACE_BAR);
+
+        stopRxStream();
+        modem_stats_close(&g_stats);
+
+        // free up states, clean up
+
+        if (g_mode == -1) {
+            // PlugIn clean up
+            (wxGetApp().m_plugin_stopfp)(wxGetApp().m_plugInStates);
+        }
+        else {
+            // FreeDV clean up
+            delete g_error_hist;
+            delete g_error_histn;
+            fifo_destroy(g_error_pattern_fifo);
+            freedv_close(g_pfreedv);
+            speex_preprocess_state_destroy(g_speex_st);
+        }
+
+        m_newMicInFilter = m_newSpkOutFilter = true;
+
+        m_togBtnSplit->Disable();
+        //m_togRxID->Disable();
+        //m_togTxID->Disable();
+        m_togBtnAnalog->Disable();
+        m_btnTogPTT->Disable();
+        m_togBtnVoiceKeyer->Disable();
+        m_togBtnOnOff->SetLabel(wxT("Start"));
+        m_rb1600->Enable();
+        //m_rb700b->Enable();
+        m_rb700c->Enable();
+        m_rb800xa->Enable();
+        if (m_rbPlugIn != NULL)
+            m_rbPlugIn->Enable();
+           
+#ifdef DISABLED_FEATURE
+        m_rb700->Enable();
+        m_rb1400old->Enable();
+        m_rb1600Wide->Enable();
+        m_rb1400->Enable();
+        m_rb2000->Enable();
+#endif
+#ifdef __UDP_EXPERIMENTAL__
+        char e[80]; sprintf(e,"stop"); processTxtEvent(e);
+#endif
+    }
+}
+
+//-------------------------------------------------------------------------
+// stopRxStream()
+//-------------------------------------------------------------------------
+void MainFrame::stopRxStream()
+{
+    if(m_RxRunning)
+    {
+        m_RxRunning = false;
+
+        fprintf(stderr, "waiting for thread to stop\n");
+        m_txRxThread->m_run = 0;
+        m_txRxThread->Wait();
+        fprintf(stderr, "thread stopped\n");
+
+        m_rxInPa->stop();
+        m_rxInPa->streamClose();
+        delete m_rxInPa;
+        if(m_rxOutPa != m_rxInPa) {
+			m_rxOutPa->stop();
+			m_rxOutPa->streamClose();
+			delete m_rxOutPa;
+		}
+
+        if (g_nSoundCards == 2) {
+            m_txInPa->stop();
+            m_txInPa->streamClose();
+            delete m_txInPa;
+            if(m_txInPa != m_txOutPa) {
+				m_txOutPa->stop();
+				m_txOutPa->streamClose();
+				delete m_txOutPa;
+			}
+        }
+
+        destroy_fifos();
+        destroy_src();
+        deleteEQFilters(g_rxUserdata);
+        delete g_rxUserdata;
+    }
+}
+
+void MainFrame::destroy_fifos(void)
+{
+    fifo_destroy(g_rxUserdata->infifo1);
+    fifo_destroy(g_rxUserdata->outfifo1);
+    fifo_destroy(g_rxUserdata->infifo2);
+    fifo_destroy(g_rxUserdata->outfifo2);
+    fifo_destroy(g_rxUserdata->rxinfifo);
+    fifo_destroy(g_rxUserdata->rxoutfifo);
+}
+
+void MainFrame::destroy_src(void)
+{
+    src_delete(g_rxUserdata->insrc1);
+    src_delete(g_rxUserdata->outsrc1);
+    src_delete(g_rxUserdata->insrc2);
+    src_delete(g_rxUserdata->outsrc2);
+    src_delete(g_rxUserdata->insrcsf);
+}
+
+void  MainFrame::initPortAudioDevice(PortAudioWrap *pa, int inDevice, int outDevice,
+                                     int soundCard, int sampleRate, int inputChannels)
+{
+    // Note all of the wrapper functions below just set values in a
+    // portaudio struct so can't return any errors. So no need to trap
+    // any errors in this function.
+
+    // init input params
+
+    pa->setInputDevice(inDevice);
+    if(inDevice != paNoDevice) {
+        pa->setInputChannelCount(inputChannels);           // stereo input
+        pa->setInputSampleFormat(PA_SAMPLE_TYPE);
+        pa->setInputLatency(pa->getInputDefaultLowLatency());
+        pa->setInputHostApiStreamInfo(NULL);
+    }
+
+    pa->setOutputDevice(paNoDevice);
+    
+    // init output params
+    
+    pa->setOutputDevice(outDevice);
+    if(outDevice != paNoDevice) {
+        pa->setOutputChannelCount(2);                      // stereo output
+        pa->setOutputSampleFormat(PA_SAMPLE_TYPE);
+        pa->setOutputLatency(pa->getOutputDefaultLowLatency());
+        pa->setOutputHostApiStreamInfo(NULL);
+    }
+
+    // init params that affect input and output
+
+    /*
+      On Linux, setting this to wxGetApp().m_framesPerBuffer caused
+      intermittant break up on the audio from my IC7200 on Ubuntu 14.
+      After a day of bug hunting I found that 0, as recommended by the
+      PortAudio docunmentation, fixed the problem.
+    */
+
+    //pa->setFramesPerBuffer(wxGetApp().m_framesPerBuffer);
+    pa->setFramesPerBuffer(0);
+
+    pa->setSampleRate(sampleRate);
+    pa->setStreamFlags(paClipOff);
+}
+
+//-------------------------------------------------------------------------
+// startRxStream()
+//-------------------------------------------------------------------------
+void MainFrame::startRxStream()
+{
+    int   src_error;
+    const PaDeviceInfo *deviceInfo1 = NULL, *deviceInfo2 = NULL;
+    int   inputChannels1, inputChannels2;
+    bool  two_rx=false;
+    bool  two_tx=false;
+
+    if(!m_RxRunning) {
+        m_RxRunning = true;
+
+        if(Pa_Initialize())
+        {
+            wxMessageBox(wxT("Port Audio failed to initialize"), wxT("Pa_Initialize"), wxOK);
+        }
+
+        m_rxInPa = new PortAudioWrap();
+        if(g_soundCard1InDeviceNum != g_soundCard1OutDeviceNum)
+            two_rx=true;
+        if(g_soundCard2InDeviceNum != g_soundCard2OutDeviceNum)
+            two_tx=true;
+        
+        fprintf(g_logfile, "two_rx: %d two_tx: %d\n", two_rx, two_tx);
+        if(two_rx)
+            m_rxOutPa = new PortAudioWrap();
+        else
+            m_rxOutPa = m_rxInPa;
+
+        if (g_nSoundCards == 0) {
+            wxMessageBox(wxT("No Sound Cards configured, use Tools - Audio Config to configure"), wxT("Error"), wxOK);
+            delete m_rxInPa;
+            if(two_rx)
+                delete m_rxOutPa;
+            m_RxRunning = false;
+            return;
+        }
+
+        // Init Sound card 1 ----------------------------------------------
+        // sanity check on sound card device numbers
+
+        if ((m_rxInPa->getDeviceCount() <= g_soundCard1InDeviceNum) ||
+            (m_rxOutPa->getDeviceCount() <= g_soundCard1OutDeviceNum)) {
+            wxMessageBox(wxT("Sound Card 1 not present"), wxT("Error"), wxOK);
+            delete m_rxInPa;
+            if(two_rx)
+				delete m_rxOutPa;
+            m_RxRunning = false;
+            return;
+        }
+
+        // work out how many input channels this device supports.
+
+        deviceInfo1 = Pa_GetDeviceInfo(g_soundCard1InDeviceNum);
+        if (deviceInfo1 == NULL) {
+            wxMessageBox(wxT("Couldn't get device info from Port Audio for Sound Card 1"), wxT("Error"), wxOK);
+            delete m_rxInPa;
+            if(two_rx)
+				delete m_rxOutPa;
+            m_RxRunning = false;
+            return;
+        }
+        if (deviceInfo1->maxInputChannels == 1)
+            inputChannels1 = 1;
+        else
+            inputChannels1 = 2;
+
+        if(two_rx) {
+            initPortAudioDevice(m_rxInPa, g_soundCard1InDeviceNum, paNoDevice, 1,
+                            g_soundCard1SampleRate, inputChannels1);
+            initPortAudioDevice(m_rxOutPa, paNoDevice, g_soundCard1OutDeviceNum, 1,
+                            g_soundCard1SampleRate, inputChannels1);
+		}
+        else
+            initPortAudioDevice(m_rxInPa, g_soundCard1InDeviceNum, g_soundCard1OutDeviceNum, 1,
+                            g_soundCard1SampleRate, inputChannels1);
+
+        // Init Sound Card 2 ------------------------------------------------
+
+        if (g_nSoundCards == 2) {
+
+            m_txInPa = new PortAudioWrap();
+            if(two_tx)
+                m_txOutPa = new PortAudioWrap();
+            else
+                m_txOutPa = m_txInPa;
+
+            // sanity check on sound card device numbers
+
+            //printf("m_txInPa->getDeviceCount(): %d\n", m_txInPa->getDeviceCount());
+            //printf("g_soundCard2InDeviceNum: %d\n", g_soundCard2InDeviceNum);
+            //printf("g_soundCard2OutDeviceNum: %d\n", g_soundCard2OutDeviceNum);
+
+            if ((m_txInPa->getDeviceCount() <= g_soundCard2InDeviceNum) ||
+                (m_txOutPa->getDeviceCount() <= g_soundCard2OutDeviceNum)) {
+                wxMessageBox(wxT("Sound Card 2 not present"), wxT("Error"), wxOK);
+                delete m_rxInPa;
+                if(two_rx)
+                    delete m_rxOutPa;
+                delete m_txInPa;
+                if(two_tx)
+                    delete m_txOutPa;
+                m_RxRunning = false;
+                return;
+            }
+
+            deviceInfo2 = Pa_GetDeviceInfo(g_soundCard2InDeviceNum);
+            if (deviceInfo2 == NULL) {
+                wxMessageBox(wxT("Couldn't get device info from Port Audio for Sound Card 1"), wxT("Error"), wxOK);
+                delete m_rxInPa;
+                if(two_rx)
+					delete m_rxOutPa;
+                delete m_txInPa;
+                if(two_tx)
+					delete m_txOutPa;
+                m_RxRunning = false;
+                return;
+            }
+            if (deviceInfo2->maxInputChannels == 1)
+                inputChannels2 = 1;
+            else
+                inputChannels2 = 2;
+
+            if(two_tx) {
+				initPortAudioDevice(m_txInPa, g_soundCard2InDeviceNum, paNoDevice, 2,
+                                g_soundCard2SampleRate, inputChannels2);
+				initPortAudioDevice(m_txOutPa, paNoDevice, g_soundCard2OutDeviceNum, 2,
+                                g_soundCard2SampleRate, inputChannels2);
+			}
+			else
+				initPortAudioDevice(m_txInPa, g_soundCard2InDeviceNum, g_soundCard2OutDeviceNum, 2,
+                                g_soundCard2SampleRate, inputChannels2);
+        }
+
+        // Init call back data structure ----------------------------------------------
+
+        g_rxUserdata = new paCallBackData;
+        g_rxUserdata->inputChannels1 = inputChannels1;
+        if (deviceInfo2 != NULL)
+            g_rxUserdata->inputChannels2 = inputChannels2;
+
+        // init sample rate conversion states
+
+        g_rxUserdata->insrc1 = src_new(SRC_SINC_FASTEST, 1, &src_error);
+        assert(g_rxUserdata->insrc1 != NULL);
+        g_rxUserdata->outsrc1 = src_new(SRC_SINC_FASTEST, 1, &src_error);
+        assert(g_rxUserdata->outsrc1 != NULL);
+        g_rxUserdata->insrc2 = src_new(SRC_SINC_FASTEST, 1, &src_error);
+        assert(g_rxUserdata->insrc2 != NULL);
+        g_rxUserdata->outsrc2 = src_new(SRC_SINC_FASTEST, 1, &src_error);
+        assert(g_rxUserdata->outsrc2 != NULL);
+
+        g_rxUserdata->insrcsf = src_new(SRC_SINC_FASTEST, 1, &src_error);
+        assert(g_rxUserdata->insrcsf != NULL);
+
+        // create FIFOs used to interface between different buffer sizes
+
+        g_rxUserdata->infifo1 = fifo_create(8*N48);
+        g_rxUserdata->outfifo1 = fifo_create(10*N48);
+        g_rxUserdata->outfifo2 = fifo_create(8*N48);
+        g_rxUserdata->infifo2 = fifo_create(8*N48);
+        printf("N48: %d\n", N48);
+
+        g_rxUserdata->rxinfifo = fifo_create(10 * N8);
+        g_rxUserdata->rxoutfifo = fifo_create(10 * N8);
+
+        // Init Equaliser Filters ------------------------------------------------------
+
+        m_newMicInFilter = m_newSpkOutFilter = true;
+        designEQFilters(g_rxUserdata);
+        g_rxUserdata->micInEQEnable = wxGetApp().m_MicInEQEnable;
+        g_rxUserdata->spkOutEQEnable = wxGetApp().m_SpkOutEQEnable;
+
+        // optional tone in left channel to reliably trigger vox
+        
+        g_rxUserdata->leftChannelVoxTone = wxGetApp().m_leftChannelVoxTone;
+        g_rxUserdata->voxTonePhase = 0;
+
+        // Start sound card 1 ----------------------------------------------------------
+
+        m_rxInPa->setUserData(g_rxUserdata);
+        m_rxErr = m_rxInPa->setCallback(rxCallback);
+
+        m_rxErr = m_rxInPa->streamOpen();
+
+        if(m_rxErr != paNoError) {
+            wxMessageBox(wxT("Sound Card 1 Open/Setup error."), wxT("Error"), wxOK);
+			delete m_rxInPa;
+			if(two_rx)
+				delete m_rxOutPa;
+			delete m_txInPa;
+			if(two_tx)
+				delete m_txOutPa;
+            destroy_fifos();
+            destroy_src();
+            deleteEQFilters(g_rxUserdata);
+            delete g_rxUserdata;
+            m_RxRunning = false;
+            return;
+        }
+
+        m_rxErr = m_rxInPa->streamStart();
+        if(m_rxErr != paNoError) {
+            wxMessageBox(wxT("Sound Card 1 Stream Start Error."), wxT("Error"), wxOK);
+			delete m_rxInPa;
+			if(two_rx)
+				delete m_rxOutPa;
+			delete m_txInPa;
+			if(two_tx)
+				delete m_txOutPa;
+            destroy_fifos();
+            destroy_src();
+            deleteEQFilters(g_rxUserdata);
+            delete g_rxUserdata;
+            m_RxRunning = false;
+            return;
+        }
+
+        // Start separate output stream if needed
+
+        if(two_rx) {
+            m_rxOutPa->setUserData(g_rxUserdata);
+            m_rxErr = m_rxOutPa->setCallback(rxCallback);
+
+            m_rxErr = m_rxOutPa->streamOpen();
+
+            if(m_rxErr != paNoError) {
+                wxMessageBox(wxT("Sound Card 1 Second Stream Open/Setup error."), wxT("Error"), wxOK);
+                delete m_rxInPa;
+                delete m_rxOutPa;
+                delete m_txOutPa;
+                if(two_tx)
+                    delete m_txOutPa;
+                destroy_fifos();
+                destroy_src();
+                deleteEQFilters(g_rxUserdata);
+                delete g_rxUserdata;
+                m_RxRunning = false;
+                return;
+            }
+
+            m_rxErr = m_rxOutPa->streamStart();
+            if(m_rxErr != paNoError) {
+                wxMessageBox(wxT("Sound Card 1 Second Stream Start Error."), wxT("Error"), wxOK);
+                m_rxInPa->stop();
+                m_rxInPa->streamClose();
+                delete m_rxInPa;
+                delete m_rxOutPa;
+                delete m_txOutPa;
+                if(two_tx)
+                    delete m_txOutPa;
+                destroy_fifos();
+                destroy_src();
+                deleteEQFilters(g_rxUserdata);
+                delete g_rxUserdata;
+                m_RxRunning = false;
+                return;
+            }
+        }
+
+        // Start sound card 2 ----------------------------------------------------------
+
+        if (g_nSoundCards == 2) {
+
+            // question: can we use same callback data
+            // (g_rxUserdata)or both sound card callbacks?  Is there a
+            // chance of them both being called at the same time?  We
+            // could need a mutex ...
+
+            m_txInPa->setUserData(g_rxUserdata);
+            m_txErr = m_txInPa->setCallback(txCallback);
+            m_txErr = m_txInPa->streamOpen();
+
+            if(m_txErr != paNoError) {
+                fprintf(stderr, "Err: %d\n", m_txErr);
+                wxMessageBox(wxT("Sound Card 2 Open/Setup error."), wxT("Error"), wxOK);
+                m_rxInPa->stop();
+                m_rxInPa->streamClose();
+                delete m_rxInPa;
+                if(two_rx) {
+                    m_rxOutPa->stop();
+                    m_rxOutPa->streamClose();
+                    delete m_rxOutPa;
+                }
+                delete m_txInPa;
+                if(two_tx)
+                    delete m_txOutPa;
+                destroy_fifos();
+                destroy_src();
+                deleteEQFilters(g_rxUserdata);
+                delete g_rxUserdata;
+                m_RxRunning = false;
+                return;
+            }
+            m_txErr = m_txInPa->streamStart();
+            if(m_txErr != paNoError) {
+                wxMessageBox(wxT("Sound Card 2 Start Error."), wxT("Error"), wxOK);
+                m_rxInPa->stop();
+                m_rxInPa->streamClose();
+                delete m_rxInPa;
+                if(two_rx) {
+                    m_rxOutPa->stop();
+                    m_rxOutPa->streamClose();
+                    delete m_rxOutPa;
+                }
+                delete m_txInPa;
+                if(two_tx)
+                    delete m_txOutPa;
+                destroy_fifos();
+                destroy_src();
+                deleteEQFilters(g_rxUserdata);
+                delete g_rxUserdata;
+                m_RxRunning = false;
+                return;
+            }
+
+            // Start separate output stream if needed
+
+            if (two_tx) {
+
+                // question: can we use same callback data
+                // (g_rxUserdata)or both sound card callbacks?  Is there a
+                // chance of them both being called at the same time?  We
+                // could need a mutex ...
+
+                m_txOutPa->setUserData(g_rxUserdata);
+                m_txErr = m_txOutPa->setCallback(txCallback);
+                m_txErr = m_txOutPa->streamOpen();
+
+                if(m_txErr != paNoError) {
+                    wxMessageBox(wxT("Sound Card 2 Second Stream Open/Setup error."), wxT("Error"), wxOK);
+                    m_rxInPa->stop();
+                    m_rxInPa->streamClose();
+                    delete m_rxInPa;
+                    if(two_rx) {
+                        m_rxOutPa->stop();
+                        m_rxOutPa->streamClose();
+                        delete m_rxOutPa;
+                    }
+                    m_txInPa->stop();
+                    m_txInPa->streamClose();
+                    delete m_txInPa;
+                    delete m_txOutPa;
+                    destroy_fifos();
+                    destroy_src();
+                    deleteEQFilters(g_rxUserdata);
+                    delete g_rxUserdata;
+                    m_RxRunning = false;
+                    return;
+                }
+                m_txErr = m_txOutPa->streamStart();
+                if(m_txErr != paNoError) {
+                    wxMessageBox(wxT("Sound Card 2 Second Stream Start Error."), wxT("Error"), wxOK);
+                    m_rxInPa->stop();
+                    m_rxInPa->streamClose();
+                    m_txInPa->stop();
+                    m_txInPa->streamClose();
+                    delete m_txInPa;
+                    if(two_rx) {
+                        m_rxOutPa->stop();
+                        m_rxOutPa->streamClose();
+                        delete m_rxOutPa;
+                    }
+                    delete m_txInPa;
+                    delete m_txOutPa;
+                    destroy_fifos();
+                    destroy_src();
+                    deleteEQFilters(g_rxUserdata);
+                    delete g_rxUserdata;
+                    m_RxRunning = false;
+                    return;
+                }
+            }
+        }
+
+        // start tx/rx processing thread
+
+        m_txRxThread = new txRxThread;
+
+        if ( m_txRxThread->Create() != wxTHREAD_NO_ERROR )
+        {
+            wxLogError(wxT("Can't create thread!"));
+        }
+
+        m_txRxThread->SetPriority(WXTHREAD_MAX_PRIORITY);
+
+        if ( m_txRxThread->Run() != wxTHREAD_NO_ERROR )
+        {
+            wxLogError(wxT("Can't start thread!"));
+        }
+
+    }
+}
+
+
+void MainFrame::processTxtEvent(char event[]) {
+    int rule = 0;
+
+    //printf("processTxtEvent:\n");
+    //printf("  event: %s\n", event);
+
+    // process with regexp and issue system command
+
+    // Each regexp in our list is separated by a newline.  We want to try all of them.
+
+    wxString event_str(event);
+    int match_end, replace_end;
+    match_end = replace_end = 0;
+    wxString regexp_match_list = wxGetApp().m_events_regexp_match;
+    wxString regexp_replace_list = wxGetApp().m_events_regexp_replace;
+
+    bool found_match = false;
+
+    while (((match_end = regexp_match_list.Find('\n')) != wxNOT_FOUND) && (rule < MAX_EVENT_RULES)) {
+        //printf("match_end: %d\n", match_end);
+        if ((replace_end = regexp_replace_list.Find('\n')) != wxNOT_FOUND) {
+            //printf("replace_end = %d\n", replace_end);
+
+            // candidate match and replace regexps strings exist, so lets try them
+
+            wxString regexp_match = regexp_match_list.SubString(0, match_end-1);
+            wxString regexp_replace = regexp_replace_list.SubString(0, replace_end-1);
+            //printf("match: %s replace: %s\n", (const char *)regexp_match.c_str(), (const char *)regexp_replace.c_str());
+            wxRegEx re(regexp_match);
+            //printf("  checking for match against: %s\n", (const char *)regexp_match.c_str());
+
+            // if we found a match, lets run the replace regexp and issue the system command
+
+            wxString event_str_rep = event_str;
+           
+            if (re.Replace(&event_str_rep, regexp_replace) != 0) {
+                fprintf(stderr, "  found match! event_str: %s\n", (const char *)event_str.c_str());
+                found_match = true;
+
+                bool enableSystem = false;
+                if (wxGetApp().m_events)
+                    enableSystem = true;
+
+                // no syscall if spam timer still running
+
+                if (spamTimer[rule].IsRunning()) {
+                    enableSystem = false;
+                    fprintf(stderr, "  spam timer running\n");
+                }
+
+                const char *event_out = event_str_rep.ToUTF8();
+                wxString event_out_with_return_code;
+
+                if (enableSystem) {
+                    int ret = wxExecute(event_str_rep);
+                    event_out_with_return_code.Printf(_T("%s -> returned %d"), event_out, ret);
+                    spamTimer[rule].Start((wxGetApp().m_events_spam_timer)*1000, wxTIMER_ONE_SHOT);
+                }
+                else
+                    event_out_with_return_code.Printf(_T("%s T: %d"), event_out, spamTimer[rule].IsRunning());
+
+                // update event log GUI if currently displayed
+                
+                if (optionsDlg != NULL) {                  
+                    optionsDlg->updateEventLog(wxString(event), event_out_with_return_code);                     
+                }
+            }
+        }
+        regexp_match_list = regexp_match_list.SubString(match_end+1, regexp_match_list.length());
+        regexp_replace_list = regexp_replace_list.SubString(replace_end+1, regexp_replace_list.length());
+
+        rule++;
+    }
+ 
+    if ((optionsDlg != NULL) && !found_match) {                  
+        optionsDlg->updateEventLog(wxString(event), _("<no match>"));                     
+    }
+}
+
+
+#define SBQ_MAX_ARGS 4
+
+void *MainFrame::designAnEQFilter(const char filterType[], float freqHz, float gaindB, float Q)
+{
+    char  *arg[SBQ_MAX_ARGS];
+    char   argstorage[SBQ_MAX_ARGS][80];
+    void  *sbq;
+    int    i, argc;
+
+    assert((strcmp(filterType, "bass") == 0)   ||
+           (strcmp(filterType, "treble") == 0) ||
+           (strcmp(filterType, "equalizer") == 0));
+
+    for(i=0; i<SBQ_MAX_ARGS; i++) {
+        arg[i] = &argstorage[i][0];
+        arg[i] = &argstorage[i][0];
+        arg[i] = &argstorage[i][0];
+    }
+
+    argc = 0;
+
+    if ((strcmp(filterType, "bass") == 0) || (strcmp(filterType, "treble") == 0)) {
+        sprintf(arg[argc++], "%s", filterType);
+        sprintf(arg[argc++], "%f", gaindB+1E-6);
+        sprintf(arg[argc++], "%f", freqHz);
+    }
+
+    if (strcmp(filterType, "equalizer") == 0) {
+        sprintf(arg[argc++], "%s", filterType);
+        sprintf(arg[argc++], "%f", freqHz);
+        sprintf(arg[argc++], "%f", Q);
+        sprintf(arg[argc++], "%f", gaindB+1E-6);
+    }
+
+    assert(argc <= SBQ_MAX_ARGS);
+
+    sbq = sox_biquad_create(argc-1, (const char **)arg);
+    assert(sbq != NULL);
+
+    return sbq;
+}
+
+void  MainFrame::designEQFilters(paCallBackData *cb)
+{
+    // init Mic In Equaliser Filters
+
+    if (m_newMicInFilter) {
+        //printf("designing new Min In filters\n");
+        cb->sbqMicInBass   = designAnEQFilter("bass", wxGetApp().m_MicInBassFreqHz, wxGetApp().m_MicInBassGaindB);
+        cb->sbqMicInTreble = designAnEQFilter("treble", wxGetApp().m_MicInTrebleFreqHz, wxGetApp().m_MicInTrebleGaindB);
+        cb->sbqMicInMid    = designAnEQFilter("equalizer", wxGetApp().m_MicInMidFreqHz, wxGetApp().m_MicInMidGaindB, wxGetApp().m_MicInMidQ);
+    }
+
+    // init Spk Out Equaliser Filters
+
+    if (m_newSpkOutFilter) {
+        //printf("designing new Spk Out filters\n");
+        //printf("designEQFilters: wxGetApp().m_SpkOutBassFreqHz: %f\n",wxGetApp().m_SpkOutBassFreqHz);
+        cb->sbqSpkOutBass   = designAnEQFilter("bass", wxGetApp().m_SpkOutBassFreqHz, wxGetApp().m_SpkOutBassGaindB);
+        cb->sbqSpkOutTreble = designAnEQFilter("treble", wxGetApp().m_SpkOutTrebleFreqHz, wxGetApp().m_SpkOutTrebleGaindB);
+        cb->sbqSpkOutMid    = designAnEQFilter("equalizer", wxGetApp().m_SpkOutMidFreqHz, wxGetApp().m_SpkOutMidGaindB, wxGetApp().m_SpkOutMidQ);
+    }
+}
+
+void  MainFrame::deleteEQFilters(paCallBackData *cb)
+{
+    if (m_newMicInFilter) {
+        sox_biquad_destroy(cb->sbqMicInBass);
+        sox_biquad_destroy(cb->sbqMicInTreble);
+        sox_biquad_destroy(cb->sbqMicInMid);
+    }
+    if (m_newSpkOutFilter) {
+        sox_biquad_destroy(cb->sbqSpkOutBass);
+        sox_biquad_destroy(cb->sbqSpkOutTreble);
+        sox_biquad_destroy(cb->sbqSpkOutMid);
+    }
+}
+
+// returns number of output samples generated by resampling
+int resample(SRC_STATE *src,
+            short      output_short[],
+            short      input_short[],
+            int        output_sample_rate,
+            int        input_sample_rate,
+            int        length_output_short, // maximum output array length in samples
+            int        length_input_short
+            )
+{
+    SRC_DATA src_data;
+    float    input[N48*4];
+    float    output[N48*4];
+    int      ret;
+
+    assert(src != NULL);
+    assert(length_input_short <= N48*4);
+    assert(length_output_short <= N48*4);
+
+    src_short_to_float_array(input_short, input, length_input_short);
+
+    src_data.data_in = input;
+    src_data.data_out = output;
+    src_data.input_frames = length_input_short;
+    src_data.output_frames = length_output_short;
+    src_data.end_of_input = 0;
+    src_data.src_ratio = (float)output_sample_rate/input_sample_rate;
+
+    ret = src_process(src, &src_data);
+    assert(ret == 0);
+
+    assert(src_data.output_frames_gen <= length_output_short);
+    src_float_to_short_array(output, output_short, src_data.output_frames_gen);
+
+    return src_data.output_frames_gen;
+}
+
+
+// Decimates samples using an algorithm that produces nice plots of
+// speech signals at a low sample rate.  We want a low sample rate so
+// we don't hammer the graphics system too hard.  Saves decimated data
+// to a fifo for plotting on screen.
+void resample_for_plot(struct FIFO *plotFifo, short buf[], int length, int fs)
+{
+    int decimation = fs/WAVEFORM_PLOT_FS;
+    int nSamples, sample;
+    int i, st, en, max, min;
+    short dec_samples[length];
+
+    nSamples = length/decimation;
+
+    for(sample = 0; sample < nSamples; sample += 2)
+    {
+        st = decimation*sample;
+        en = decimation*(sample+2);
+        max = min = 0;
+        for(i=st; i<en; i++ )
+        {
+            if (max < buf[i]) max = buf[i];
+            if (min > buf[i]) min = buf[i];
+        }
+        dec_samples[sample] = max;
+        dec_samples[sample+1] = min;
+    }
+    fifo_write(plotFifo, dec_samples, nSamples);
+}
+
+void txRxProcessing()
+{
+
+    paCallBackData  *cbData = g_rxUserdata;
+
+    // Buffers re-used by tx and rx processing
+    // signals in in48k/out48k are at a maximum sample rate of 48k, could be 44.1kHz
+    // depending on sound hardware.
+
+    short           in8k_short[4*N8];
+    short           in48k_short[4*N48];
+    short           out8k_short[4*N8];
+    short           out48k_short[4*N48];
+    int             nout, samplerate, n_samples;
+
+    //fprintf(g_logfile, "start infifo1: %5d outfifo2: %5d\n", fifo_used(cbData->infifo1), fifo_used(cbData->outfifo2));
+
+    // FreeDV 700 uses a modem sample rate of 7500 Hz which requires some special treatment
+
+    if (g_analog || g_mode == -1) 
+        samplerate = FS;
+    else
+        samplerate = freedv_get_modem_sample_rate(g_pfreedv);
+
+    //
+    //  RX side processing --------------------------------------------
+    //
+
+    // while we have enough input samples available ...
+
+    int nsam = g_soundCard1SampleRate * (float)N8/FS;
+    assert(nsam <= N48);
+    g_mutexProtectingCallbackData.Lock();
+    while ((fifo_read(cbData->infifo1, in48k_short, nsam) == 0) && ((g_half_duplex && !g_tx) || !g_half_duplex)) 
+    {
+        g_mutexProtectingCallbackData.Unlock();
+        unsigned int n8k;
+
+        n8k = resample(cbData->insrc1, in8k_short, in48k_short, samplerate, g_soundCard1SampleRate, N8, nsam);
+        assert(n8k <= N8);
+
+        // optionally save "from radio" signal (write demod input to file)
+        // Really useful for testing and development as it allows us
+        // to repeat tests using off air signals
+
+        g_mutexProtectingCallbackData.Lock();
+        if (g_recFileFromRadio && (g_sfRecFile != NULL)) {
+            //printf("g_recFromRadioSamples: %d  n8k: %d \n", g_recFromRadioSamples);
+            if (g_recFromRadioSamples < n8k) {
+                sf_write_short(g_sfRecFile, in8k_short, g_recFromRadioSamples);
+                wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, g_recFileFromRadioEventId );
+                // call stop/start record menu item, should be thread safe
+                g_parent->GetEventHandler()->AddPendingEvent( event );
+                g_recFromRadioSamples = 0;
+                //printf("finished recording g_recFromRadioSamples: %d n8k: %d!\n", g_recFileFromRadio, n8k);
+            }
+            else {
+                sf_write_short(g_sfRecFile, in8k_short, n8k);
+                g_recFromRadioSamples -= n8k;
+            }
+        }
+        g_mutexProtectingCallbackData.Unlock();
+
+        // optionally read "from radio" signal from file (read demod input from file)
+
+        g_mutexProtectingCallbackData.Lock();
+        if (g_playFileFromRadio && (g_sfPlayFileFromRadio != NULL)) {
+            unsigned int nsf = n8k*g_sfFs/samplerate;
+            short        insf_short[nsf];
+            unsigned int n = sf_read_short(g_sfPlayFileFromRadio, insf_short, nsf);
+            n8k = resample(cbData->insrcsf, in8k_short, insf_short, samplerate, g_sfFs, N8, nsf);
+            //fprintf(g_logfile, "n: %d nsf: %d n8k: %d samplerate: %d\n", n, nsf, n8k, samplerate);
+            assert(n8k <= N8);
+
+            if (n == 0) {
+                if (g_loopPlayFileFromRadio)
+                    sf_seek(g_sfPlayFileFromRadio, 0, SEEK_SET);
+                else {
+                    printf("playFileFromRadio finished, issuing event!\n");
+                    wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, g_playFileFromRadioEventId );
+                    // call stop/start play menu item, should be thread safe
+                    g_parent->GetEventHandler()->AddPendingEvent( event );
+                }
+            }
+        }
+        g_mutexProtectingCallbackData.Unlock();
+
+        resample_for_plot(g_plotDemodInFifo, in8k_short, n8k, samplerate);
+
+        if (g_mode != -1) {
+            // send latest squelch level to FreeDV API, as it handles squelch internally
+
+            freedv_set_squelch_en(g_pfreedv, g_SquelchActive);
+            freedv_set_snr_squelch_thresh(g_pfreedv, g_SquelchLevel);
+        }
+
+        // Optional tone interferer
+
+        if (wxGetApp().m_tone) {
+            float w = 2.0*M_PI*wxGetApp().m_tone_freq_hz/freedv_get_modem_sample_rate(g_pfreedv);
+            float s;
+            unsigned int i;
+            for(i=0; i<n8k; i++) {
+                s = (float)wxGetApp().m_tone_amplitude*cos(g_tone_phase);   
+                in8k_short[i] += (int)s;             
+                g_tone_phase += w;
+                //fprintf(stderr, "%f\n", s);
+            }
+            g_tone_phase -= 2.0*M_PI*floor(g_tone_phase/(2.0*M_PI));                                         
+        }
+
+        //fprintf(g_logfile, "snr_squelch_thresh: %f\n",  g_pfreedv->snr_squelch_thresh);
+
+        // compute rx spectrum - do here so update rate in constant
+
+        COMP  rx_fdm[n8k];
+        float rx_spec[MODEM_STATS_NSPEC];
+        unsigned int   i;
+
+        for(i=0; i<n8k; i++) {
+            rx_fdm[i].real = in8k_short[i];
+            rx_fdm[i].imag = 0.0;
+        }            
+        modem_stats_get_rx_spectrum(&g_stats, rx_spec, rx_fdm, n8k);
+
+        // Average rx spectrum data using a simple IIR low pass filter
+
+        for(i = 0; i<MODEM_STATS_NSPEC; i++) {
+            g_avmag[i] = BETA * g_avmag[i] + (1.0 - BETA) * rx_spec[i];
+        }
+
+        // Get some audio to send to headphones/speaker.  If in analog
+        // mode we pass thru the "from radio" audio to the
+        // headphones/speaker.
+
+        if (g_analog) {
+            memcpy(out8k_short, in8k_short, sizeof(short)*n8k);
+            
+            #ifdef OLDSPEC
+            // compute rx spectrum 
+
+            COMP  rx_fdm[n8k];
+            float rx_spec[MODEM_STATS_NSPEC];
+            unsigned int   i;
+
+            for(i=0; i<n8k; i++) {
+                rx_fdm[i].real = in8k_short[i];
+                rx_fdm[i].imag = 0.0;
+            }            
+            modem_stats_get_rx_spectrum(&g_stats, rx_spec, rx_fdm, n8k);
+
+            // Average rx spectrum data using a simple IIR low pass filter
+
+            for(i = 0; i<MODEM_STATS_NSPEC; i++) {
+                g_avmag[i] = BETA * g_avmag[i] + (1.0 - BETA) * rx_spec[i];
+            }
+            #endif
+        }
+        else {
+            fifo_write(cbData->rxinfifo, in8k_short, n8k);
+            per_frame_rx_processing(cbData->rxoutfifo, cbData->rxinfifo);
+            memset(out8k_short, 0, sizeof(short)*N8);
+            fifo_read(cbData->rxoutfifo, out8k_short, N8);
+            //printf("out8k_short: %d\n", out8k_short[0]);
+        }
+
+
+        // Optional Spk Out EQ Filtering, need mutex as filter can change at run time
+        g_mutexProtectingCallbackData.Lock();
+        if (cbData->spkOutEQEnable) {
+            sox_biquad_filter(cbData->sbqSpkOutBass,   out8k_short, out8k_short, N8);
+            sox_biquad_filter(cbData->sbqSpkOutTreble, out8k_short, out8k_short, N8);
+            sox_biquad_filter(cbData->sbqSpkOutMid,    out8k_short, out8k_short, N8);
+        }
+        g_mutexProtectingCallbackData.Unlock();
+
+        resample_for_plot(g_plotSpeechOutFifo, out8k_short, N8, FS);
+
+        g_mutexProtectingCallbackData.Lock();
+        if (g_nSoundCards == 1) {
+            nout = resample(cbData->outsrc2, out48k_short, out8k_short, g_soundCard1SampleRate, FS, N48, N8);
+            fifo_write(cbData->outfifo1, out48k_short, nout);
+        }
+        else {
+            nout = resample(cbData->outsrc2, out48k_short, out8k_short, g_soundCard2SampleRate, FS, N48, N8);
+            fifo_write(cbData->outfifo2, out48k_short, nout);
+        }
+    }
+    g_mutexProtectingCallbackData.Unlock();
+
+    //
+    //  TX side processing --------------------------------------------
+    //
+
+    if ((g_mode != -1) && ((g_nSoundCards == 2) && ((g_half_duplex && g_tx) || !g_half_duplex))) {
+        int ret;
+
+        // Make sure we have q few frames of modulator output
+        // samples.  This also locks the modulator to the sample rate
+        // of sound card 1.  We want to make sure that modulator
+        // samples are uninterrupted by differences in sample rate
+        // between this sound card and sound card 2.
+
+        g_mutexProtectingCallbackData.Lock();
+        while((unsigned)fifo_used(cbData->outfifo1) < 6*N48)
+        {
+            g_mutexProtectingCallbackData.Unlock();
+
+            int   nsam = g_soundCard2SampleRate * freedv_get_n_speech_samples(g_pfreedv)/FS;
+            assert(nsam <= 4*N48);
+
+            // infifo2 is written to by another sound card so it may
+            // over or underflow, but we don't realy care.  It will
+            // just result in a short interruption in audio being fed
+            // to codec2_enc, possibly making a click every now and
+            // again in the decoded audio at the other end.
+
+            // zero speech input just in case infifo2 underflows
+            memset(in48k_short, 0, nsam*sizeof(short));
+            fifo_read(cbData->infifo2, in48k_short, nsam);
+
+            nout = resample(cbData->insrc2, in8k_short, in48k_short, FS, g_soundCard2SampleRate, 4*N8, nsam);
+
+            // optionally use file for mic input signal
+
+            g_mutexProtectingCallbackData.Lock();
+            if (g_playFileToMicIn && (g_sfPlayFile != NULL)) {
+                int n = sf_read_short(g_sfPlayFile, in8k_short, nout);
+                //fprintf(stderr, "n: %d nout: %d\n", n, nout);
+                if (n != nout) {
+                    if (g_loopPlayFileToMicIn)
+                        sf_seek(g_sfPlayFile, 0, SEEK_SET);
+                    else {
+                        wxCommandEvent event( wxEVT_COMMAND_MENU_SELECTED, g_playFileToMicInEventId );
+                        // call stop/start play menu item, should be thread safe
+                        g_parent->GetEventHandler()->AddPendingEvent( event );
+                    }
+                }
+            }
+            g_mutexProtectingCallbackData.Unlock();
+
+            // Optional Speex pre-processor for acoustic noise reduction
+
+            if (wxGetApp().m_speexpp_enable) {
+                speex_preprocess_run(g_speex_st, in8k_short);
+            }
+
+            // Optional Mic In EQ Filtering, need mutex as filter can change at run time
+
+            g_mutexProtectingCallbackData.Lock();
+            if (cbData->micInEQEnable) {
+                sox_biquad_filter(cbData->sbqMicInBass, in8k_short, in8k_short, nout);
+                sox_biquad_filter(cbData->sbqMicInTreble, in8k_short, in8k_short, nout);
+                sox_biquad_filter(cbData->sbqMicInMid, in8k_short, in8k_short, nout);
+            }
+            g_mutexProtectingCallbackData.Unlock();
+
+            resample_for_plot(g_plotSpeechInFifo, in8k_short, nout, FS);
+
+            n_samples = freedv_get_n_nom_modem_samples(g_pfreedv);
+
+            if (g_analog) {
+                n_samples = freedv_get_n_speech_samples(g_pfreedv);
+
+                // Boost the "from mic" -> "to radio" audio in analog
+                // mode.  The need for the gain was found by
+                // experiment - analog SSB sounded too quiet compared
+                // to digital. With digital voice we generally drive
+                // the "to radio" (SSB radio mic input) at about 25%
+                // of the peak level for normal SSB voice. So we
+                // introduce 6dB gain to make analog SSB sound the
+                // same level as the digital.  Watch out for clipping.
+                for(int i=0; i<n_samples; i++) {
+                    float out = (float)in8k_short[i]*2.0;
+                    if (out > 32767) out = 32767.0;
+                    if (out < -32767) out = -32767.0;
+                    out8k_short[i] = out;
+                }
+            }
+            else {
+                COMP tx_fdm[freedv_get_n_nom_modem_samples(g_pfreedv)];
+                COMP tx_fdm_offset[freedv_get_n_nom_modem_samples(g_pfreedv)];
+                int  i;
+
+                if (g_mode == FREEDV_MODE_800XA) {
+                    /* 800XA doesn't support complex output just yet */
+                    freedv_tx(g_pfreedv, out8k_short, in8k_short);
+                }
+                else {
+                    freedv_comptx(g_pfreedv, tx_fdm, in8k_short);
+  
+                    freq_shift_coh(tx_fdm_offset, tx_fdm, g_TxFreqOffsetHz, freedv_get_modem_sample_rate(g_pfreedv), &g_TxFreqOffsetPhaseRect, freedv_get_n_nom_modem_samples(g_pfreedv));
+                    for(i=0; i<freedv_get_n_nom_modem_samples(g_pfreedv); i++)
+                        out8k_short[i] = tx_fdm_offset[i].real;
+                }
+            }
+
+            // output one frame of modem signal
+            nout = resample(cbData->outsrc1, out48k_short, out8k_short, g_soundCard1SampleRate, samplerate, N48*4, n_samples);
+            g_mutexProtectingCallbackData.Lock();
+            ret = fifo_write(cbData->outfifo1, out48k_short, nout);
+            //fprintf(stderr,"nout: %d ret: %d N48*4: %d\n", nout, ret, N48*4);
+
+            assert(ret != -1);
+        }
+        g_mutexProtectingCallbackData.Unlock();
+    }
+   
+    //fprintf(g_logfile, "  end infifo1: %5d outfifo2: %5d\n", fifo_used(cbData->infifo1), fifo_used(cbData->outfifo2));
+
+}
+
+//----------------------------------------------------------------
+// per_frame_rx_processing()
+//----------------------------------------------------------------
+
+void per_frame_rx_processing(
+                             FIFO    *output_fifo,   // decoded speech samples
+                             FIFO    *input_fifo
+                             )
+{
+    #ifdef OLDSPEC
+    float               rx_spec[MODEM_STATS_NSPEC];
+    #endif
+    int                 i;
+
+    if (g_mode == -1) {
+        // PlugIn processing ---------------------------------------------------
+
+        int   nin = 160; // TODO: hard code for now - some sort of plugin supplied param in future
+        short input_buf[nin];
+
+        while (fifo_read(input_fifo, input_buf, nin) == 0) {
+            (wxGetApp().m_plugin_rx_samplesfp)(wxGetApp().m_plugInStates, input_buf, nin);
+        }
+
+        #ifdef OLD_SPEC
+        COMP  rx_fdm[nin];
+
+        for(i=0; i<nin; i++) {
+            rx_fdm[i].real = (float)input_buf[i];
+            rx_fdm[i].imag = 0.0;
+        }
+
+        modem_stats_get_rx_spectrum(&g_stats, rx_spec, rx_fdm, nin);
+
+        // Average rx spectrum data using a simple IIR low pass filter
+
+        for(i = 0; i<MODEM_STATS_NSPEC; i++) {
+            g_avmag[i] = BETA * g_avmag[i] + (1.0 - BETA) * rx_spec[i];
+        }
+        #endif
+
+    }
+    else {
+        // FreeDV processing ----------------------------------------------------
+
+        short               input_buf[freedv_get_n_max_modem_samples(g_pfreedv)];
+        short               output_buf[freedv_get_n_speech_samples(g_pfreedv)];
+        COMP                rx_fdm[freedv_get_n_max_modem_samples(g_pfreedv)];
+        COMP                rx_fdm_offset[freedv_get_n_max_modem_samples(g_pfreedv)];
+        int                 nin, nout;
+
+        nin = freedv_nin(g_pfreedv);
+        while (fifo_read(input_fifo, input_buf, nin) == 0) {
+            assert(nin <= freedv_get_n_max_modem_samples(g_pfreedv));
+
+            #ifdef OLD_SPEC
+            int nin_prev = nin;
+            #endif
+
+            //fwrite(input_buf, sizeof(short), nin, ftest);
+
+            // demod per frame processing
+
+            for(i=0; i<nin; i++) {
+                rx_fdm[i].real = (float)input_buf[i];
+                rx_fdm[i].imag = 0.0;
+            }
+       
+            // Optional channel noise
+
+            if (g_channel_noise) {
+                fdmdv_simulate_channel(&g_sig_pwr_av, rx_fdm, nin, wxGetApp().m_noise_snr);
+            }
+
+            freq_shift_coh(rx_fdm_offset, rx_fdm, g_RxFreqOffsetHz, freedv_get_modem_sample_rate(g_pfreedv), &g_RxFreqOffsetPhaseRect, nin);
+            nout = freedv_comprx(g_pfreedv, output_buf, rx_fdm_offset);
+            //kprintf("nout %d outbuf_buf[0]: %d\n", nout, output_buf[0]);
+            fifo_write(output_fifo, output_buf, nout);
+        
+            nin = freedv_nin(g_pfreedv);
+            g_State = freedv_get_sync(g_pfreedv);
+
+            //fprintf(g_logfile, "g_State: %d g_stats.sync: %d snr: %f \n", g_State, g_stats.sync, f->snr);
+
+            // grab extended stats so we can plot spectrum, scatter diagram etc
+
+            freedv_get_modem_extended_stats(g_pfreedv, &g_stats);
+
+            #ifdef OLD_SPEC
+            // compute rx spectrum 
+
+            modem_stats_get_rx_spectrum(&g_stats, rx_spec, rx_fdm, nin_prev); 
+            
+            // Average rx spectrum data using a simple IIR low pass filter
+
+            for(i = 0; i<MODEM_STATS_NSPEC; i++) {
+                g_avmag[i] = BETA * g_avmag[i] + (1.0 - BETA) * rx_spec[i];
+            }
+            #endif
+        }
+    }
+
+
+}
+
+
+//-------------------------------------------------------------------------
+// rxCallback()
+//
+// Sound card 1 callback from PortAudio, that is used for processing rx
+// side:
+//
+// + infifo1 is the "from radio" off air modem signal from the SSB rx that we send to the demod.
+// + In single sound card mode outfifo1 is the "to speaker/headphones" decoded speech output.
+// + In dual sound card mode outfifo1 is the "to radio" modulator signal to the SSB tx.
+//
+//-------------------------------------------------------------------------
+int MainFrame::rxCallback(
+                            const void      *inputBuffer,
+                            void            *outputBuffer,
+                            unsigned long   framesPerBuffer,
+                            const PaStreamCallbackTimeInfo* timeInfo,
+                            PaStreamCallbackFlags statusFlags,
+                            void            *userData
+                         )
+{
+    paCallBackData  *cbData = (paCallBackData*)userData;
+    short           *rptr    = (short*)inputBuffer;
+    short           *wptr    = (short*)outputBuffer;
+
+    short           indata[MAX_FPB];
+    short           outdata[MAX_FPB];
+
+    unsigned int    i;
+
+    (void) timeInfo;
+    (void) statusFlags;
+
+    wxMutexLocker lock(g_mutexProtectingCallbackData);
+
+    //fprintf(g_logfile, "cb1 statusFlags: 0x%x framesPerBuffer: %d rptr: 0x%x wptr: 0x%x \n", (int)statusFlags,
+    //        framesPerBuffer, rptr, wptr);
+
+    //
+    //  RX side processing --------------------------------------------
+    //
+
+    // assemble a mono buffer and write to FIFO
+
+    assert(framesPerBuffer < MAX_FPB);
+
+    if(rptr) {
+        //fprintf(g_logfile,"in %ld %d\n",  framesPerBuffer, g_in++);
+        //g_indata += framesPerBuffer;
+        for(i = 0; i < framesPerBuffer; i++, rptr += cbData->inputChannels1)
+            indata[i] = rptr[0];                       
+        if (fifo_write(cbData->infifo1, indata, framesPerBuffer)) {
+            //fprintf(g_logfile, "infifo1 full\n");
+        }
+        //fifo_write(cbData->outfifo1, indata, framesPerBuffer);
+    }
+
+    // OK now set up output samples for this callback
+
+    if(wptr) {
+        //fprintf(g_logfile,"out %ld %d\n",  framesPerBuffer, g_out++);
+        if (fifo_read(cbData->outfifo1, outdata, framesPerBuffer) == 0) {
+
+            // write signal to both channels
+
+            for(i = 0; i < framesPerBuffer; i++, wptr += 2) {
+                if (cbData->leftChannelVoxTone) {
+                    cbData->voxTonePhase += 2.0*M_PI*VOX_TONE_FREQ/g_soundCard1SampleRate;
+                    cbData->voxTonePhase -= 2.0*M_PI*floor(cbData->voxTonePhase/(2.0*M_PI));
+                    wptr[0] = VOX_TONE_AMP*cos(cbData->voxTonePhase);                              
+                    //printf("%f %d\n", cbData->voxTonePhase, wptr[0]);
+                }
+                else
+                    wptr[0] = outdata[i];
+                               
+                wptr[1] = outdata[i];
+            }
+        }
+        else {
+            //fprintf(g_logfile, "outfifo1 empty\n");
+            // zero output if no data available
+            for(i = 0; i < framesPerBuffer; i++, wptr += 2) {
+                wptr[0] = 0;
+                wptr[1] = 0;
+            }
+        }
+    }
+
+    return paContinue;
+}
+
+
+//-------------------------------------------------------------------------
+// txCallback()
+//-------------------------------------------------------------------------
+int MainFrame::txCallback(
+                            const void *inputBuffer,
+                            void *outputBuffer,
+                            unsigned long framesPerBuffer,
+                            const PaStreamCallbackTimeInfo *outTime,
+                            PaStreamCallbackFlags statusFlags,
+                            void *userData
+                        )
+{
+    paCallBackData  *cbData = (paCallBackData*)userData;
+    unsigned int    i;
+    short           *rptr    = (short*)inputBuffer;
+    short           *wptr    = (short*)outputBuffer;
+    short           indata[MAX_FPB];
+    short           outdata[MAX_FPB];
+
+    wxMutexLocker lock(g_mutexProtectingCallbackData);
+
+    //    if (statusFlags)
+    //    printf("cb2 statusFlags: 0x%x\n", (int)statusFlags);
+
+    // assemble a mono buffer and write to FIFO
+
+    assert(framesPerBuffer < MAX_FPB);
+
+    if(rptr) {
+        for(i = 0; i < framesPerBuffer; i++, rptr += cbData->inputChannels2)
+            indata[i] = rptr[0];                        
+    }
+
+    //#define SC2_LOOPBACK
+#ifdef SC2_LOOPBACK
+    //TODO: This doesn't work unless using the same soundcard!
+
+    if(wptr) {
+        for(i = 0; i < framesPerBuffer; i++, wptr += 2) {
+            wptr[0] = indata[i];
+            wptr[1] = indata[i];
+        }
+    }
+
+#else
+    if(rptr) {
+        if (fifo_write(cbData->infifo2, indata, framesPerBuffer)) {
+            //fprintf(g_logfile, "infifo2 full\n");
+        }
+    }
+
+    // OK now set up output samples for this callback
+
+    if(wptr) {
+        if (fifo_read(cbData->outfifo2, outdata, framesPerBuffer) == 0) {
+		
+            // write signal to both channels */
+            for(i = 0; i < framesPerBuffer; i++, wptr += 2) {
+                wptr[0] = outdata[i];
+                wptr[1] = outdata[i];
+            }
+        }
+        else {
+            //fprintf(g_logfile, "outfifo2 empty\n");
+            // zero output if no data available
+            for(i = 0; i < framesPerBuffer; i++, wptr += 2) {
+                wptr[0] = 0;
+                wptr[1] = 0;
+            }
+        }
+    }
+#endif
+    return paContinue;
+}
+
+// Callback from plot_spectrum & plot_waterfall.  would be nice to
+// work out a way to do this without globals.
+
+void fdmdv2_clickTune(float freq) {
+
+    // The demod is hard-wired to expect a centre frequency of
+    // FDMDV_FCENTRE.  So we want to take the signal centered on the
+    // click tune freq and re-centre it on FDMDV_FCENTRE.  For example
+    // if the click tune freq is 1500Hz, and FDMDV_CENTRE is 1200 Hz,
+    // we need to shift the input signal centred on 1500Hz down to
+    // 1200Hz, an offset of -300Hz.
+
+    // Bit of an "indent" as we are often trying to get it back
+    // exactly in the centre
+
+    if (fabs(FDMDV_FCENTRE - freq) < 10.0) {
+        freq = FDMDV_FCENTRE;
+        fprintf(stderr, "indent!\n");
+    }
+
+    if (g_split) {
+        g_RxFreqOffsetHz = FDMDV_FCENTRE - freq;
+    }
+    else {
+        g_TxFreqOffsetHz = freq - FDMDV_FCENTRE;
+        g_RxFreqOffsetHz = FDMDV_FCENTRE - freq;
+    }
+}
+
+//----------------------------------------------------------------
+// OpenSerialPort()
+//----------------------------------------------------------------
+
+void MainFrame::OpenSerialPort(void)
+{
+    Serialport *serialport = wxGetApp().m_serialport;
+
+    if(!wxGetApp().m_strRigCtrlPort.IsEmpty()) {
+       serialport->openport(wxGetApp().m_strRigCtrlPort.c_str(), 
+                            wxGetApp().m_boolUseRTS, 
+                            wxGetApp().m_boolRTSPos, 
+                            wxGetApp().m_boolUseDTR,
+                            wxGetApp().m_boolDTRPos);
+       if (serialport->isopen()) {
+            // always start PTT in Rx state
+           serialport->ptt(false);
+       }
+       else {
+           wxMessageBox("Couldn't open Serial Port", wxT("About"), wxOK | wxICON_ERROR, this);
+       }
+    }
+}
+
+
+//----------------------------------------------------------------
+// CloseSerialPort()
+//----------------------------------------------------------------
+
+void MainFrame::CloseSerialPort(void)
+{
+    Serialport *serialport = wxGetApp().m_serialport;
+    if (serialport->isopen()) {
+        // always end with PTT in rx state
+
+        serialport->ptt(false);
+        serialport->closeport();
+    }
+}
+
+
+#ifdef __UDP_SUPPORT__
+
+//----------------------------------------------------------------
+// PollUDP() - see if any commands on UDP port
+//----------------------------------------------------------------
+
+// test this puppy with netcat: 
+//   $ echo "hello" | nc -u -q1 localhost 3000
+
+int MainFrame::PollUDP(void)
+{
+    // this will block until message received, so we put it in it's own thread
+
+    char buf[1024];
+    char reply[80];
+    size_t n = m_udp_sock->RecvFrom(m_udp_addr, buf, sizeof(buf)).LastCount();
+
+    if (n) {
+        wxString bufstr = wxString::From8BitData(buf, n);
+        bufstr.Trim();
+        wxString ipaddr = m_udp_addr.IPAddress();
+        printf("Received: \"%s\" from %s:%u\n",
+               (const char *)bufstr.c_str(),
+               (const char *)ipaddr.c_str(), m_udp_addr.Service());
+
+        // for security only accept commands from local host
+
+        sprintf(reply,"nope\n");
+        if (ipaddr.Cmp(_("127.0.0.1")) == 0) {
+
+            // process commands
+
+            if (bufstr.Cmp(_("restore")) == 0) {
+                m_schedule_restore = true;  // Make Restore happen in main thread to avoid crashing
+                sprintf(reply,"ok\n");
+            }
+                
+            wxString itemToSet, val;
+            if (bufstr.StartsWith(_("set "), &itemToSet)) {
+                if (itemToSet.StartsWith("txtmsg ", &val)) {
+                    // note: if options dialog is open this will get overwritten
+                    wxGetApp().m_callSign = val;
+                }  
+                sprintf(reply,"ok\n");
+            }
+            if (bufstr.StartsWith(_("ptton"), &itemToSet)) {
+                // note: if options dialog is open this will get overwritten
+                m_btnTogPTT->SetValue(true);
+                togglePTT();
+                sprintf(reply,"ok\n");
+            }
+            if (bufstr.StartsWith(_("pttoff"), &itemToSet)) {
+                // note: if options dialog is open this will get overwritten
+                m_btnTogPTT->SetValue(false);
+                togglePTT();
+                sprintf(reply,"ok\n");
+            }
+                
+        }
+        else {
+            printf("We only accept messages from locahost!\n");
+        }
+
+       if ( m_udp_sock->SendTo(m_udp_addr, reply, strlen(reply)).LastCount() != strlen(reply)) {
+           printf("ERROR: failed to send data\n");
+        }
+    }
+
+    return n;
+}
+
+void MainFrame::startUDPThread(void) {
+    fprintf(stderr, "starting UDP thread!\n");
+    m_UDPThread = new UDPThread;
+    m_UDPThread->mf = this;
+    if (m_UDPThread->Create() != wxTHREAD_NO_ERROR ) {
+        wxLogError(wxT("Can't create thread!"));
+    }
+    if (m_UDPThread->Run() != wxTHREAD_NO_ERROR ) {
+        wxLogError(wxT("Can't start thread!"));
+        delete m_UDPThread;
+    }
+}
+
+void MainFrame::stopUDPThread(void) {
+    printf("stopping UDP thread!\n");
+    if ((m_UDPThread != NULL) && m_UDPThread->m_run) {
+        m_UDPThread->m_run = 0;
+        m_UDPThread->Wait();
+        m_UDPThread = NULL;
+    }
+}
+
+void *UDPThread::Entry() {
+    printf("UDP thread started!\n");
+    while (m_run) {
+        if (wxGetApp().m_udp_enable) {
+            printf("m_udp_enable\n");
+            mf->m_udp_addr.Service(wxGetApp().m_udp_port);
+            mf->m_udp_sock = new wxDatagramSocket(mf->m_udp_addr, wxSOCKET_NOWAIT);
+
+            while (m_run && wxGetApp().m_udp_enable) {
+                if (mf->PollUDP() == 0) {
+                    wxThread::Sleep(20);
+                }
+            }
+
+            delete mf->m_udp_sock;
+        }
+        wxThread::Sleep(20);
+    }
+    return NULL;
+}
+
+#endif
+
+char my_get_next_tx_char(void *callback_state) {
+    short ch = 0;
+    
+    fifo_read(g_txDataInFifo, &ch, 1);
+    //fprintf(stderr, "get_next_tx_char: %c\n", (char)ch);
+    return (char)ch;
+}
+
+void my_put_next_rx_char(void *callback_state, char c) {
+    short ch = (short)c;
+    //fprintf(stderr, "put_next_rx_char: %c\n", (char)c);
+    fifo_write(g_rxDataOutFifo, &ch, 1);
+}
+
+// Callback from FreeDv API to update error plots
+
+void my_freedv_put_error_pattern(void *state, short error_pattern[], int sz_error_pattern) {
+    fifo_write(g_error_pattern_fifo, error_pattern, sz_error_pattern);
+    //fprintf(stderr, "my_freedv_put_error_pattern: sz_error_pattern: %d ret: %d used: %d\n", 
+    //        sz_error_pattern, ret, fifo_used(g_error_pattern_fifo) );
+}
+
+void freq_shift_coh(COMP rx_fdm_fcorr[], COMP rx_fdm[], float foff, float Fs, COMP *foff_phase_rect, int nin)
+{
+    COMP  foff_rect;
+    float mag;
+    int   i;
+
+    foff_rect.real = cosf(2.0*M_PI*foff/Fs);
+    foff_rect.imag = sinf(2.0*M_PI*foff/Fs);
+    for(i=0; i<nin; i++) {
+	*foff_phase_rect = cmult(*foff_phase_rect, foff_rect);
+	rx_fdm_fcorr[i] = cmult(rx_fdm[i], *foff_phase_rect);
+    }
+
+    /* normalise digital oscilator as the magnitude can drift over time */
+
+    mag = cabsolute(*foff_phase_rect);
+    foff_phase_rect->real /= mag;	 
+    foff_phase_rect->imag /= mag;	 
+}
+
+int plugin_get_persistant(char name[], char value[]) {
+    wxString n,v;
+    int i;
+
+    for(i=0; i<wxGetApp().m_numPlugInParam; i++) {
+
+        n = wxGetApp().m_plugInParamName[i];
+
+        if (strcmp(n.mb_str().data(), name) == 0) {
+            v = wxGetApp().m_txtPlugInParam[i];
+            strcpy(value, v.mb_str().data());
+            fprintf(stderr, "plugin_get_persistant called name: %s value: %s\n", name, v.mb_str().data());
+        }
+    }
+
+    return 0;
+}
+
diff --git a/src/fdmdv2_main.h b/src/fdmdv2_main.h
new file mode 100644
index 0000000..e074069
--- /dev/null
+++ b/src/fdmdv2_main.h
@@ -0,0 +1,681 @@
+//==========================================================================
+// Name:            fdmdv2_main.h
+//
+// Purpose:         Declares simple wxWidgets application with GUI.
+// Created:         Apr. 9, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __FDMDV2_MAIN__
+#define __FDMDV2_MAIN__
+
+#include "version.h"
+#ifndef _NO_AUTOTOOLS_
+#include "../config.h"
+#endif
+#include <wx/wx.h>
+
+#include <wx/tglbtn.h>
+#include <wx/app.h>
+#include "wx/rawbmp.h"
+#include "wx/file.h"
+#include "wx/filename.h"
+#include "wx/config.h"
+#include <wx/fileconf.h>
+#include "wx/graphics.h"
+#include "wx/mstream.h"
+#include "wx/wfstream.h"
+#include "wx/quantize.h"
+#include "wx/scopedptr.h"
+#include "wx/stopwatch.h"
+#include "wx/versioninfo.h"
+#include <wx/sound.h>
+#include <wx/url.h>
+#include <wx/sstream.h>
+#include <wx/listbox.h>
+#include <wx/textdlg.h>
+#include <wx/regex.h>
+#include <wx/socket.h>
+
+#include <samplerate.h>
+
+#include <stdint.h>
+#include <speex/speex_preprocess.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <dlfcn.h>
+#endif
+
+#include "codec2.h"
+#include "codec2_fifo.h"
+#include "modem_stats.h"
+
+#include "topFrame.h"
+#include "dlg_ptt.h"
+#include "dlg_options.h"
+#include "fdmdv2_plot.h"
+#include "fdmdv2_plot_scalar.h"
+#include "fdmdv2_plot_scatter.h"
+#include "fdmdv2_plot_waterfall.h"
+#include "fdmdv2_plot_spectrum.h"
+#include "fdmdv2_pa_wrapper.h"
+#include "sndfile.h"
+#include "portaudio.h"
+#include "dlg_audiooptions.h"
+#include "dlg_filter.h"
+#include "dlg_options.h"
+#include "varicode.h"
+#include "sox_biquad.h"
+#include "comp_prim.h"
+#include "dlg_plugin.h"
+#include "hamlib.h"
+#include "serialport.h" 
+
+#define _USE_TIMER              1
+#define _USE_ONIDLE             1
+#define _DUMMY_DATA             1
+//#define _AUDIO_PASSTHROUGH    1
+#define _REFRESH_TIMER_PERIOD   (DT*1000)
+//#define _USE_ABOUT_DIALOG       1
+
+enum {
+        ID_START = wxID_HIGHEST,
+        ID_TIMER_WATERFALL,
+        ID_TIMER_SPECTRUM,
+        ID_TIMER_SCATTER,
+        ID_TIMER_SCALAR
+     };
+
+#define EXCHANGE_DATA_IN    0
+#define EXCHANGE_DATA_OUT   1
+
+
+extern int                 g_nSoundCards;
+extern int                 g_soundCard1InDeviceNum;
+extern int                 g_soundCard1OutDeviceNum;
+extern int                 g_soundCard1SampleRate;
+extern int                 g_soundCard2InDeviceNum;
+extern int                 g_soundCard2OutDeviceNum;
+extern int                 g_soundCard2SampleRate;
+
+// Voice Keyer Constants
+
+#define VK_SYNC_WAIT_TIME 5.0
+
+// Voice Keyer States
+
+#define VK_IDLE      0
+#define VK_TX        1
+#define VK_RX        2
+#define VK_SYNC_WAIT 3
+
+// Voice Keyer Events
+
+#define VK_START         0
+#define VK_SPACE_BAR     1
+#define VK_PLAY_FINISHED 2
+#define VK_DT            3
+#define VK_SYNC          4
+
+class MainFrame;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class MainApp
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class MainApp : public wxApp
+{
+    public:
+        virtual bool        OnInit();
+        virtual int         OnExit();
+
+        wxString            m_strVendName;
+        wxString            m_StrAppName;
+
+        wxString            m_textNumChOut;
+        wxString            m_textNumChIn;
+
+        wxString            m_strRxInAudio;
+        wxString            m_strRxOutAudio;
+        wxString            m_textVoiceInput;
+        wxString            m_textVoiceOutput;
+        wxString            m_strSampleRate;
+        wxString            m_strBitrate;
+
+        // PTT -----------------------------------
+
+        bool                m_boolHalfDuplex;
+
+        wxString            m_txtVoiceKeyerWaveFilePath;
+        wxString            m_txtVoiceKeyerWaveFile;
+        int                 m_intVoiceKeyerRxPause;
+        int                 m_intVoiceKeyerRepeats;
+
+        bool                m_boolHamlibUseForPTT;
+        unsigned int        m_intHamlibRig;
+        wxString            m_strHamlibSerialPort;
+        unsigned int        m_intHamlibSerialRate;
+        Hamlib              *m_hamlib;
+
+        bool                m_boolUseSerialPTT;
+        wxString            m_strRigCtrlPort;
+        bool                m_boolUseRTS;
+        bool                m_boolRTSPos;
+        bool                m_boolUseDTR;
+        bool                m_boolDTRPos;
+        Serialport         *m_serialport;
+
+        // Play/Rec files
+
+        wxString            m_playFileToMicInPath;
+        wxString            m_recFileFromRadioPath;
+        unsigned int        m_recFileFromRadioSecs;
+        wxString            m_playFileFromRadioPath;
+
+        // Options dialog
+
+        wxString            m_callSign;
+        bool                m_events;
+        int                 m_events_spam_timer;
+        unsigned int        m_textEncoding;
+        bool                m_enable_checksum;
+        wxString            m_events_regexp_match;
+        wxString            m_events_regexp_replace;
+
+        bool                m_snrSlow;
+
+        // LPC Post Filter
+        bool                m_codec2LPCPostFilterEnable;
+        bool                m_codec2LPCPostFilterBassBoost;
+        float               m_codec2LPCPostFilterGamma;
+        float               m_codec2LPCPostFilterBeta;
+        
+        // Speex Pre-Processor
+        bool                m_speexpp_enable;
+
+        // Mic In Equaliser
+        float               m_MicInBassFreqHz;
+        float               m_MicInBassGaindB;
+        float               m_MicInTrebleFreqHz;
+        float               m_MicInTrebleGaindB;
+        float               m_MicInMidFreqHz;
+        float               m_MicInMidGaindB;
+        float               m_MicInMidQ;
+        bool                m_MicInEQEnable;
+
+        // Spk Out Equaliser
+        float               m_SpkOutBassFreqHz;
+        float               m_SpkOutBassGaindB;
+        float               m_SpkOutTrebleFreqHz;
+        float               m_SpkOutTrebleGaindB;
+        float               m_SpkOutMidFreqHz;
+        float               m_SpkOutMidGaindB;
+        float               m_SpkOutMidQ;
+        bool                m_SpkOutEQEnable;
+
+        // Flags for displaying windows
+        int                 m_show_wf;
+        int                 m_show_spect;
+        int                 m_show_scatter;
+        int                 m_show_timing;
+        int                 m_show_freq;
+        int                 m_show_speech_in;
+        int                 m_show_speech_out;
+        int                 m_show_demod_in;
+        int                 m_show_test_frame_errors;
+        int                 m_show_test_frame_errors_hist;
+
+        // optional vox trigger tone
+        bool                m_leftChannelVoxTone;
+
+        // UDP control port
+        bool                m_udp_enable;
+        int                 m_udp_port;
+
+        // notebook display after tx->rxtransition
+        int                 m_rxNbookCtrl;
+
+        wxRect              m_rTopWindow;
+
+        int                 m_framesPerBuffer;
+
+        bool                loadConfig();
+        bool                saveConfig();
+
+        // Plugins -----------------------------------
+
+        wxString            m_txtPlugInParam[PLUGIN_MAX_PARAMS];
+
+        // plugin details
+
+        void      *m_plugInHandle;
+        bool       m_plugIn;
+        wxString   m_plugInName;
+        int        m_numPlugInParam;
+        wxString   m_plugInParamName[PLUGIN_MAX_PARAMS];
+        void      *m_plugInStates;
+        void     (*m_plugin_startfp)(void *);
+        void     (*m_plugin_stopfp)(void *);
+        void     (*m_plugin_rx_samplesfp)(void *, short *, int);
+
+        // misc
+
+        bool       m_testFrames;
+        bool       m_channel_noise;
+        float      m_channel_snr_dB;
+
+        int        FilterEvent(wxEvent& event);
+        MainFrame *frame;
+
+        // 700 options
+
+        bool       m_FreeDV700txClip;
+        bool       m_FreeDV700Combine;
+
+        // Noise simulation
+
+        int        m_noise_snr;
+
+        // carrier attenuation
+
+        bool       m_attn_carrier_en;
+        int        m_attn_carrier;
+
+        // tone interferer simulation
+
+        bool       m_tone;
+        int        m_tone_freq_hz;
+        int        m_tone_amplitude;
+
+        // Windows debug console
+
+        bool       m_debug_console;
+    protected:
+};
+
+// declare global static function wxGetApp()
+DECLARE_APP(MainApp)
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// paCallBackData
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+typedef struct
+{
+    // libresample states for 48 to 8 kHz conversions
+
+    SRC_STATE      *insrc1;
+    SRC_STATE      *outsrc1;
+    SRC_STATE      *insrc2;
+    SRC_STATE      *outsrc2;
+    SRC_STATE      *insrcsf;
+
+    // FIFOs attached to first sound card
+
+    struct FIFO    *infifo1;
+    struct FIFO    *outfifo1;
+
+    // FIFOs attached to second sound card
+    struct FIFO    *infifo2;
+    struct FIFO    *outfifo2;
+
+    // FIFOs for rx process
+    struct FIFO    *rxinfifo;
+    struct FIFO    *rxoutfifo;
+
+    int             inputChannels1, inputChannels2;
+
+    // EQ filter states
+    void           *sbqMicInBass;
+    void           *sbqMicInTreble;
+    void           *sbqMicInMid;
+    void           *sbqSpkOutBass;
+    void           *sbqSpkOutTreble;
+    void           *sbqSpkOutMid;
+
+    bool            micInEQEnable;
+    bool            spkOutEQEnable;
+
+    // optional loud tone on left channel to reliably trigger vox
+    bool            leftChannelVoxTone;
+    float           voxTonePhase;
+
+} paCallBackData;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// panel with custom loop checkbox for play file dialog
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class MyExtraPlayFilePanel : public wxPanel
+{
+public:
+    MyExtraPlayFilePanel(wxWindow *parent);
+    void setLoopPlayFileToMicIn(bool checked) { m_cb->SetValue(checked); }
+    bool getLoopPlayFileToMicIn(void) { return m_cb->GetValue(); }
+private:
+    wxCheckBox *m_cb;
+};
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// panel with custom Seconds-to-record control for record file dialog
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class MyExtraRecFilePanel : public wxPanel
+{
+public:
+    MyExtraRecFilePanel(wxWindow *parent);
+    ~MyExtraRecFilePanel() 
+    {
+        wxLogDebug("Destructor\n");
+    }
+    void setSecondsToRecord(wxString value) { m_secondsToRecord->SetValue(value); }
+    wxString getSecondsToRecord(void) 
+    { 
+        wxLogDebug("getSecondsToRecord: %s\n",m_secondsToRecord->GetValue());
+        return m_secondsToRecord->GetValue(); 
+    }
+private:
+    wxTextCtrl *m_secondsToRecord;
+};
+
+class txRxThread;
+class UDPThread;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class MainFrame
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class MainFrame : public TopFrame
+{
+    public:
+        MainFrame(wxString plugInName, wxWindow *parent);
+        virtual ~MainFrame();
+
+        PlotSpectrum*           m_panelSpectrum;
+        PlotWaterfall*          m_panelWaterfall;
+        PlotScatter*            m_panelScatter;
+        PlotScalar*             m_panelTimeOffset;
+        PlotScalar*             m_panelFreqOffset;
+        PlotScalar*             m_panelSpeechIn;
+        PlotScalar*             m_panelSpeechOut;
+        PlotScalar*             m_panelDemodIn;
+        PlotScalar*             m_panelTestFrameErrors;
+        PlotScalar*             m_panelTestFrameErrorsHist;
+
+        bool                    m_RxRunning;
+
+        PortAudioWrap           *m_rxInPa;
+        PortAudioWrap           *m_rxOutPa;
+        PortAudioWrap           *m_txInPa;
+        PortAudioWrap           *m_txOutPa;
+
+        PaError                 m_rxErr;
+        PaError                 m_txErr;
+        
+        txRxThread*             m_txRxThread;
+
+        bool                    OpenHamlibRig();
+        void                    OpenSerialPort(void);
+        void                    CloseSerialPort(void);
+        void                    SerialPTTRx(void);
+
+        bool                    m_modal;
+
+#ifdef _USE_TIMER
+        wxTimer                 m_plotTimer;
+#endif
+
+    void destroy_fifos(void);
+    void destroy_src(void);
+    void autoDetectSoundCards(PortAudioWrap *pa);
+
+        static int rxCallback(
+                                const void *inBuffer,
+                                void *outBuffer,
+                                unsigned long framesPerBuffer,
+                                const PaStreamCallbackTimeInfo *outTime,
+                                PaStreamCallbackFlags statusFlags,
+                                void *userData
+                             );
+ 
+        static int txCallback(
+                                const void *inBuffer,
+                                void *outBuffer,
+                                unsigned long framesPerBuffer,
+                                const PaStreamCallbackTimeInfo *outTime,
+                                PaStreamCallbackFlags statusFlags,
+                                void *userData
+                             );
+
+
+    void initPortAudioDevice(PortAudioWrap *pa, int inDevice, int outDevice, 
+                             int soundCard, int sampleRate, int inputChannels);
+
+    void togglePTT(void);
+
+    wxIPV4address           m_udp_addr;
+    wxDatagramSocket       *m_udp_sock;
+    UDPThread              *m_UDPThread;
+    void                    startUDPThread(void);
+    void                    stopUDPThread(void);
+    int                     PollUDP();
+    bool                    m_schedule_restore;
+
+    int                     vk_state;
+    void VoiceKeyerProcessEvent(int vk_event);
+
+    protected:
+
+        void setsnrBeta(bool snrSlow);
+
+        // protected event handlers
+        virtual void OnCloseFrame(wxCloseEvent& event);
+        void OnExitClick(wxCommandEvent& event);
+
+        void startTxStream();
+        void startRxStream();
+        void stopTxStream();
+        void stopRxStream();
+        void abortTxStream();
+        void abortRxStream();
+        
+        void OnTop(wxCommandEvent& event);
+        void OnExit( wxCommandEvent& event );
+
+        void OnToolsAudio( wxCommandEvent& event );
+        void OnToolsAudioUI( wxUpdateUIEvent& event );
+        void OnToolsComCfg( wxCommandEvent& event );
+        void OnToolsComCfgUI( wxUpdateUIEvent& event );
+        void OnToolsFilter( wxCommandEvent& event );
+        void OnToolsOptions(wxCommandEvent& event);
+        void OnToolsOptionsUI(wxUpdateUIEvent& event);
+
+        void OnToolsPlugInCfg( wxCommandEvent& event );
+        void OnToolsPlugInCfgUI( wxUpdateUIEvent& event );
+
+        void OnPlayFileToMicIn( wxCommandEvent& event );
+        void StopPlayFileToMicIn(void);
+        void OnRecFileFromRadio( wxCommandEvent& event );
+        void OnPlayFileFromRadio( wxCommandEvent& event );
+
+        void OnHelpCheckUpdates( wxCommandEvent& event );
+        void OnHelpCheckUpdatesUI( wxUpdateUIEvent& event );
+        void OnHelpAbout( wxCommandEvent& event );
+        void OnCmdSliderScroll( wxScrollEvent& event );
+//        void OnSliderScrollBottom( wxScrollEvent& event );
+//        void OnCmdSliderScrollChanged( wxScrollEvent& event );
+//        void OnSliderScrollTop( wxScrollEvent& event );
+        void OnCheckSQClick( wxCommandEvent& event );
+        void OnCheckSNRClick( wxCommandEvent& event );
+
+        // Toggle Buttons
+        void OnTogBtnSplitClick(wxCommandEvent& event);
+        void OnTogBtnAnalogClick(wxCommandEvent& event);
+        void OnTogBtnRxID( wxCommandEvent& event );
+        void OnTogBtnTxID( wxCommandEvent& event );
+        void OnTogBtnPTT( wxCommandEvent& event );
+        void OnTogBtnVoiceKeyerClick (wxCommandEvent& event);
+        void OnTogBtnOnOff( wxCommandEvent& event );
+
+        void OnCallSignReset( wxCommandEvent& event );
+        void OnBerReset( wxCommandEvent& event );
+
+        //System Events
+        void OnPaint(wxPaintEvent& event);
+        void OnSize( wxSizeEvent& event );
+        void OnUpdateUI( wxUpdateUIEvent& event );
+        void OnDeleteConfig(wxCommandEvent&);
+#ifdef _USE_TIMER
+        void OnTimer(wxTimerEvent &evt);
+#endif
+#ifdef _USE_ONIDLE
+        void OnIdle(wxIdleEvent &evt);
+#endif
+
+        int VoiceKeyerStartTx(void);
+
+    private:
+        bool        m_useMemory;
+        wxTextCtrl* m_tc;
+        int         m_zoom;
+        float       m_snrBeta;
+        
+        // Callsign/text messaging
+        char        m_callsign[MAX_CALLSIGN];
+        char       *m_pcallsign;
+        unsigned int m_checksumGood;
+        unsigned int m_checksumBad;
+        
+        // Events
+        void        processTxtEvent(char event[]);
+        class OptionsDlg *optionsDlg;
+        wxTimer     spamTimer[MAX_EVENT_RULES];
+
+        // level Gauge
+        float       m_maxLevel;
+ 
+        // flags to indicate when new EQ filters need to be designed
+
+        bool        m_newMicInFilter;
+        bool        m_newSpkOutFilter;
+
+        void*       designAnEQFilter(const char filterType[], float freqHz, float gaindB, float Q = 0.0);
+        void        designEQFilters(paCallBackData *cb);
+        void        deleteEQFilters(paCallBackData *cb);
+
+        // Voice Keyer States
+
+        int        vk_rx_pause;
+        int        vk_repeats, vk_repeat_counter;
+        float      vk_rx_time;
+};
+
+void txRxProcessing();
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// class txRxThread - experimental tx/rx processing thread
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class txRxThread : public wxThread
+{
+public:
+    txRxThread(void) : wxThread(wxTHREAD_JOINABLE) { m_run = 1; }
+
+    // thread execution starts here
+    void *Entry() 
+    {
+        while (m_run) 
+        {
+            txRxProcessing();        
+            wxThread::Sleep(20);
+        }
+        return NULL;
+    }
+
+    // called when the thread exits - whether it terminates normally or is
+    // stopped with Delete() (but not when it is Kill()ed!)
+    void OnExit() { }
+
+public:
+    bool  m_run;
+};
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// class UDPThread - waits for UDP messages
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class UDPThread : public wxThread
+{
+public:
+    UDPThread(void) : wxThread(wxTHREAD_JOINABLE) { m_run = 1; }
+
+    // thread execution starts here
+    void *Entry();
+
+    // called when the thread exits - whether it terminates normally or is
+    // stopped with Delete() (but not when it is Kill()ed!)
+    void OnExit() { }
+
+public:
+    MainFrame              *mf;
+    bool                    m_run;
+};
+
+void resample_for_plot(struct FIFO *plotFifo, short buf[], int length, int fs);
+
+int resample(SRC_STATE *src,
+             short      output_short[],
+             short      input_short[],
+             int        output_sample_rate,
+             int        input_sample_rate,
+             int        length_output_short, // maximum output array length in samples
+             int        length_input_short
+             );
+void txRxProcessing();
+void per_frame_rx_processing(
+                                        FIFO    *output_fifo,   // decoded speech samples
+                                        FIFO    *input_fifo     // modem samples input to demod
+                                    );
+
+// FreeDv API calls this when there is a test frame that needs a-plottin'
+
+void my_freedv_put_error_pattern(void *state, short error_pattern[], int sz_error_pattern);
+
+// FreeDv API calls these puppies when it needs/receives a text char 
+
+char my_get_next_tx_char(void *callback_state);
+void my_put_next_rx_char(void *callback_state, char c);
+
+// helper complex freq shift function
+
+void freq_shift_coh(COMP rx_fdm_fcorr[], COMP rx_fdm[], float foff, float Fs, COMP *foff_phase_rect, int nin);
+
+// Helper function called by plugin
+
+int plugin_get_persistant(char name[], char value[]);
+
+#endif //__FDMDV2_MAIN__
diff --git a/src/fdmdv2_pa_wrapper.cpp b/src/fdmdv2_pa_wrapper.cpp
new file mode 100644
index 0000000..2f67ca2
--- /dev/null
+++ b/src/fdmdv2_pa_wrapper.cpp
@@ -0,0 +1,324 @@
+//==========================================================================
+// Name:            fdmdv2_pa_wrapper.cpp
+// Purpose:         Implements a wrapper class around the PortAudio library.
+// Created:         August 12, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include "fdmdv2_pa_wrapper.h"
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// PortAudioWrap()
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PortAudioWrap::PortAudioWrap()
+{
+    m_pStream                   = NULL;
+    m_pUserData                 = NULL;
+    m_samplerate                = 0;
+    m_framesPerBuffer           = 0;
+    m_statusFlags               = 0;
+    m_pStreamCallback           = NULL;
+    m_pStreamFinishedCallback   = NULL;
+    m_pTimeInfo                 = 0;
+    m_newdata                   = false;
+
+//    loadData();
+}
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// ~PortAudioWrap()
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PortAudioWrap::~PortAudioWrap()
+{
+}
+
+//----------------------------------------------------------------
+// streamOpen()
+//----------------------------------------------------------------
+PaError PortAudioWrap::streamOpen()
+{
+    return Pa_OpenStream(
+                            &m_pStream,
+                            m_inputBuffer.device == paNoDevice ? NULL : &m_inputBuffer,
+                            m_outputBuffer.device == paNoDevice ? NULL : &m_outputBuffer,
+                            m_samplerate,
+                            m_framesPerBuffer,
+                            m_statusFlags,
+                            *m_pStreamCallback,
+                            m_pUserData
+                        );
+}
+
+//----------------------------------------------------------------
+// streamStart()
+//----------------------------------------------------------------
+PaError PortAudioWrap::streamStart()
+{
+    return Pa_StartStream(m_pStream);
+}
+
+//----------------------------------------------------------------
+// streamClose()
+//----------------------------------------------------------------
+PaError PortAudioWrap::streamClose()
+{
+    if(isOpen())
+    {
+        PaError rv = Pa_CloseStream(m_pStream);
+        return rv;
+    }
+    else
+    {
+        return paNoError;
+    }
+}
+
+//----------------------------------------------------------------
+// terminate()
+//----------------------------------------------------------------
+void PortAudioWrap::terminate()
+{
+    if(Pa_IsStreamStopped(m_pStream) != paNoError)
+    {
+        Pa_StopStream(m_pStream);
+    }
+    Pa_Terminate();
+}
+
+//----------------------------------------------------------------
+// stop()
+//----------------------------------------------------------------
+void PortAudioWrap::stop()
+{
+    Pa_StopStream(m_pStream);
+}
+
+//----------------------------------------------------------------
+// abort()
+//----------------------------------------------------------------
+void PortAudioWrap::abort()
+{
+    Pa_AbortStream(m_pStream);
+}
+
+//----------------------------------------------------------------
+// isStopped()
+//----------------------------------------------------------------
+bool PortAudioWrap::isStopped() const
+{
+    PaError ret = Pa_IsStreamStopped(m_pStream);
+    return ret;
+}
+
+//----------------------------------------------------------------
+// isActive()
+//----------------------------------------------------------------
+bool PortAudioWrap::isActive() const
+{
+    PaError ret = Pa_IsStreamActive(m_pStream);
+    return ret;
+}
+
+//----------------------------------------------------------------
+// isOpen()
+//----------------------------------------------------------------
+bool PortAudioWrap::isOpen() const
+{
+    return (m_pStream != NULL);
+}
+
+//----------------------------------------------------------------
+// getDefaultInputDevice()
+//----------------------------------------------------------------
+PaDeviceIndex PortAudioWrap::getDefaultInputDevice()
+{
+    return Pa_GetDefaultInputDevice();
+}
+
+//----------------------------------------------------------------
+// getDefaultOutputDevice()
+//----------------------------------------------------------------
+PaDeviceIndex PortAudioWrap::getDefaultOutputDevice()
+{
+    return Pa_GetDefaultOutputDevice();
+}
+
+//----------------------------------------------------------------
+// setInputChannelCount()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setInputChannelCount(int count)
+{
+    m_inputBuffer.channelCount = count;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// getInputChannelCount()
+//----------------------------------------------------------------
+PaError PortAudioWrap::getInputChannelCount()
+{
+    return m_inputBuffer.channelCount;
+}
+
+//----------------------------------------------------------------
+// setInputSampleFormat()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setInputSampleFormat(PaSampleFormat format)
+{
+    m_inputBuffer.sampleFormat = format;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setInputLatency()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setInputLatency(PaTime latency)
+{
+    m_inputBuffer.suggestedLatency = latency;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setInputHostApiStreamInfo()
+//----------------------------------------------------------------
+void PortAudioWrap::setInputHostApiStreamInfo(void *info)
+{
+    m_inputBuffer.hostApiSpecificStreamInfo = info;
+}
+
+//----------------------------------------------------------------
+// getInputDefaultLowLatency()
+//----------------------------------------------------------------
+PaTime  PortAudioWrap::getInputDefaultLowLatency()
+{
+    return Pa_GetDeviceInfo(m_inputBuffer.device)->defaultLowInputLatency;
+}
+
+//----------------------------------------------------------------
+// setOutputChannelCount()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setOutputChannelCount(int count)
+{
+    m_outputBuffer.channelCount = count;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// getOutputChannelCount()
+//----------------------------------------------------------------
+const int PortAudioWrap::getOutputChannelCount()
+{
+    return m_outputBuffer.channelCount;
+}
+
+//----------------------------------------------------------------
+// getDeviceName()
+//----------------------------------------------------------------
+const char *PortAudioWrap::getDeviceName(PaDeviceIndex dev)
+{
+    const PaDeviceInfo *info;
+    info = Pa_GetDeviceInfo(dev);
+    return info->name;
+}
+
+//----------------------------------------------------------------
+// setOutputSampleFormat()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setOutputSampleFormat(PaSampleFormat format)
+{
+    m_outputBuffer.sampleFormat = format;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setOutputLatency()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setOutputLatency(PaTime latency)
+{
+    m_outputBuffer.suggestedLatency = latency;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setOutputHostApiStreamInfo()
+//----------------------------------------------------------------
+void PortAudioWrap::setOutputHostApiStreamInfo(void *info)
+{
+    m_outputBuffer.hostApiSpecificStreamInfo = info;
+}
+
+//----------------------------------------------------------------
+// getOutputDefaultLowLatency()
+//----------------------------------------------------------------
+PaTime  PortAudioWrap::getOutputDefaultLowLatency()
+{
+    return Pa_GetDeviceInfo(m_outputBuffer.device)->defaultLowOutputLatency;
+}
+
+//----------------------------------------------------------------
+// setFramesPerBuffer()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setFramesPerBuffer(unsigned long size)
+{
+    m_framesPerBuffer = size;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setSampleRate()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setSampleRate(unsigned long rate)
+{
+    m_samplerate = rate;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setStreamFlags()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setStreamFlags(PaStreamFlags flags)
+{
+    m_statusFlags = flags;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setInputDevice()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setInputDevice(PaDeviceIndex index)
+{
+    m_inputBuffer.device = index;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setOutputDevice()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setOutputDevice(PaDeviceIndex index)
+{
+    m_outputBuffer.device = index;
+    return paNoError;
+}
+
+//----------------------------------------------------------------
+// setCallback()
+//----------------------------------------------------------------
+PaError PortAudioWrap::setCallback(PaStreamCallback *callback)
+{
+    m_pStreamCallback = callback;
+    return paNoError;
+}
+
diff --git a/src/fdmdv2_pa_wrapper.h b/src/fdmdv2_pa_wrapper.h
new file mode 100644
index 0000000..3d216c0
--- /dev/null
+++ b/src/fdmdv2_pa_wrapper.h
@@ -0,0 +1,115 @@
+//==========================================================================
+// Name:            fdmdv2_pa_wrapper.h
+// Purpose:         Defines a wrapper class around PortAudio
+// Created:         August 12, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <stdio.h>
+#include <math.h>
+#include "fdmdv2_defines.h"
+#include "codec2_fdmdv.h"
+#include "codec2.h"
+#include "portaudio.h"
+
+#define PA_SAMPLE_TYPE      paInt16         //paFloat32
+#define FRAMES_PER_BUFFER   (64)
+
+typedef float SAMPLE;
+
+class PortAudioWrap
+{
+    public:
+        PortAudioWrap();
+        ~PortAudioWrap();
+
+//        float                           m_av_mag[FDMDV_NSPEC];
+
+    private:
+        PaStream                        *m_pStream;
+        void                            *m_pUserData;
+        PaStreamCallback                *m_pStreamCallback;
+        PaStreamFinishedCallback        *m_pStreamFinishedCallback;
+        const PaStreamCallbackTimeInfo  *m_pTimeInfo;
+        struct FDMDV                    *m_pFDMDV_state;
+        PaStreamParameters              m_inputBuffer;
+        PaStreamParameters              m_outputBuffer;
+        int                             m_samplerate;
+        unsigned long                   m_framesPerBuffer;
+        PaStreamCallbackFlags           m_statusFlags;
+        bool                            m_newdata;
+
+    public:
+
+        void                averageData(float mag_dB[]);
+
+        int                 getDeviceCount() { return Pa_GetDeviceCount(); }
+        PaDeviceIndex       getDefaultInputDevice();
+        PaDeviceIndex       getDefaultOutputDevice();
+        PaStreamParameters  *getDeviceInfo(PaDeviceIndex idx);
+
+        PaError             setFramesPerBuffer(unsigned long size);
+        PaError             setSampleRate(unsigned long size);
+
+        PaError             setStreamFlags(PaStreamFlags flags);
+        PaError             setCallback(PaStreamCallback *m_pStreamCallback);
+        PaError             setStreamCallback(PaStream *stream, PaStreamCallback* callback) { m_pStreamCallback = callback; return 0;}
+        PaError             setStreamFinishedCallback(PaStream *stream, PaStreamFinishedCallback* m_pStreamFinishedCallback);
+
+        void                setInputBuffer(const PaStreamParameters& inputBuffer)   {this->m_inputBuffer = inputBuffer;}
+        PaError             setInputDevice(PaDeviceIndex dev);
+        PaError             setInputChannelCount(int count);
+        int                 getInputChannelCount();
+        PaError             setInputSampleFormat(PaSampleFormat format);
+        PaError             setInputSampleRate(PaSampleFormat format);
+        PaError             setInputLatency(PaTime latency);
+        void                setInputHostApiStreamInfo(void *info = NULL);
+        PaTime              getInputDefaultLowLatency();
+        const char          *getDeviceName(PaDeviceIndex dev);
+
+        PaError             setOutputDevice(PaDeviceIndex dev);
+        PaError             setOutputChannelCount(int count);
+        const int           getOutputChannelCount();
+        PaError             setOutputSampleFormat(PaSampleFormat format);
+        PaError             setOutputLatency(PaTime latency);
+        void                setOutputHostApiStreamInfo(void *info = NULL);
+        PaTime              getOutputDefaultLowLatency();
+
+        void                setFdmdvState(FDMDV* fdmdv_state)                       {this->m_pFDMDV_state = fdmdv_state;}
+        void                setOutputBuffer(const PaStreamParameters& outputBuffer) {this->m_outputBuffer = outputBuffer;}
+        void                setTimeInfo(PaStreamCallbackTimeInfo* timeInfo)         {this->m_pTimeInfo = timeInfo;}
+        void                setUserData(void* userData)                             {this->m_pUserData = userData;}
+        unsigned long       getFramesPerBuffer() const                              {return m_framesPerBuffer;}
+        const               PaStreamParameters& getInputBuffer() const              {return m_inputBuffer;}
+        const               PaStreamParameters& getOutputBuffer() const             {return m_outputBuffer;}
+        const               PaStreamCallbackFlags& getStatusFlags() const           {return m_statusFlags;}
+
+        FDMDV*              getFdmdvState()                                         {return m_pFDMDV_state;}
+        int                 getSamplerate() const                                   {return m_samplerate;}
+        PaStream*           getStream()                                             {return m_pStream;}
+        void                *getUserData()                                          {return m_pUserData;}
+        bool                getDataAvail()                                          {return m_newdata;}
+        PaError             streamStart();
+        PaError             streamClose();
+        PaError             streamOpen();
+        void                terminate();
+        void                stop();
+        void                abort();
+        bool                isOpen() const;
+        bool                isStopped() const;
+        bool                isActive() const;
+//        void                loadData();
+};
diff --git a/src/fdmdv2_plot.cpp b/src/fdmdv2_plot.cpp
new file mode 100644
index 0000000..1b85cd9
--- /dev/null
+++ b/src/fdmdv2_plot.cpp
@@ -0,0 +1,283 @@
+//==========================================================================
+// Name:            fdmdv2_plot.cpp
+// Purpose:         Implements simple wxWidgets application with GUI.
+// Created:         Apr. 9, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <string.h>
+#include "fdmdv2_plot.h"
+
+BEGIN_EVENT_TABLE(PlotPanel, wxPanel)
+    EVT_PAINT           (PlotPanel::OnPaint)
+    EVT_MOTION          (PlotPanel::OnMouseMove)
+    EVT_LEFT_DOWN       (PlotPanel::OnMouseLeftDown)
+    EVT_LEFT_UP         (PlotPanel::OnMouseLeftUp)
+    EVT_RIGHT_DOWN      (PlotPanel::OnMouseRightDown)
+    EVT_MOUSEWHEEL      (PlotPanel::OnMouseWheelMoved)
+    EVT_SIZE            (PlotPanel::OnSize)
+    EVT_SHOW            (PlotPanel::OnShow)
+END_EVENT_TABLE()
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlotPanel(wxFrame* parent) : wxPanel(parent)
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PlotPanel::PlotPanel(wxFrame* parent) : wxPanel(parent)
+{
+    m_pNoteBook         = (wxAuiNotebook *) parent;
+    m_pTopFrame         = (MainFrame *)m_pNoteBook->GetParent();
+    m_zoomFactor        = 1.0;
+    m_pBmp              = NULL;
+    m_pPix              = NULL;
+    m_firstPass         = true;
+    m_line_color        = 0;
+    m_newdata           = false;
+    m_clip              = false;
+    m_use_bitmap        = true;
+    m_rubberBand        = false;
+    m_mouseDown         = false;
+    m_penShortDash      = wxPen(wxColor(0xA0, 0xA0, 0xA0), 1, wxPENSTYLE_SHORT_DASH);
+    m_penDotDash        = wxPen(wxColor(0xD0, 0xD0, 0xD0), 1, wxPENSTYLE_DOT_DASH);
+    m_penSolid          = wxPen(wxColor(0x00, 0x00, 0x00), 1, wxPENSTYLE_SOLID);
+    SetBackgroundStyle(wxBG_STYLE_PAINT);
+    SetLabelSize(10.0);
+}
+
+//-------------------------------------------------------------------------
+// ~PlotPanel()
+//-------------------------------------------------------------------------
+PlotPanel::~PlotPanel()
+{
+    if(m_pBmp != NULL)
+    {
+        delete m_pBmp;
+    }
+}
+
+//-------------------------------------------------------------------------
+// GetLabelSize()
+//-------------------------------------------------------------------------
+double PlotPanel::GetLabelSize()
+{
+    return m_label_size;
+}
+
+//-------------------------------------------------------------------------
+// SetLabelSize()
+//-------------------------------------------------------------------------
+void PlotPanel::SetLabelSize(double size)
+{
+    m_label_size = size;
+}
+
+//-------------------------------------------------------------------------
+// OnShow()
+//-------------------------------------------------------------------------
+void PlotPanel::OnShow(wxShowEvent& event)
+{
+    this->Refresh();
+}
+
+//-------------------------------------------------------------------------
+// OnErase()
+//-------------------------------------------------------------------------
+void PlotPanel::OnErase(wxEraseEvent& event)
+{
+    event.Skip();
+}
+
+//-------------------------------------------------------------------------
+// OnSize()
+//-------------------------------------------------------------------------
+void PlotPanel::OnSize(wxSizeEvent& event)
+{
+    m_rCtrlPrev = m_rCtrl;
+    m_rCtrl     = GetClientRect();
+    if(m_use_bitmap)
+    {
+        if(!m_oImage.IsOk())
+        {
+            m_oImage.Create(m_rCtrl.GetWidth(), m_rCtrl.GetHeight(), true);
+        }
+        else
+        {
+            m_oImage.Rescale(m_rCtrl.GetWidth(), m_rCtrl.GetHeight());
+        }
+        m_pBmp = new wxBitmap(m_oImage, wxBITMAP_SCREEN_DEPTH);
+        m_firstPass = true;
+    }
+    this->Refresh();
+}
+
+//-------------------------------------------------------------------------
+// OnMouseMove()
+//-------------------------------------------------------------------------
+void PlotPanel::OnMouseMove(wxMouseEvent& event)
+{
+//    if(m_mouseDown)
+//    {
+//        paintNow();
+//    }
+}
+
+//-------------------------------------------------------------------------
+// OnMouseLeftDown()
+//-------------------------------------------------------------------------
+void PlotPanel::OnMouseLeftDown(wxMouseEvent& event)
+{
+}
+
+//-------------------------------------------------------------------------
+// OnMouseRightDown()
+//-------------------------------------------------------------------------
+void PlotPanel::OnMouseRightDown(wxMouseEvent& event)
+{
+}
+
+//-------------------------------------------------------------------------
+// OnMouseWheelMoved()
+//-------------------------------------------------------------------------
+void PlotPanel::OnMouseWheelMoved(wxMouseEvent& event)
+{
+}
+
+//-------------------------------------------------------------------------
+// OnMouseLeftUp()
+//-------------------------------------------------------------------------
+void PlotPanel::OnMouseLeftUp(wxMouseEvent& event)
+{
+    m_mouseDown = false;
+}
+
+//-------------------------------------------------------------------------
+// SetZoomFactor()
+//-------------------------------------------------------------------------
+double PlotPanel::SetZoomFactor(double zf)
+{
+    if((zf > 0) && (zf < 5.0))
+    {
+        m_zoomFactor = zf;
+    }
+    return zf;
+}
+
+//-------------------------------------------------------------------------
+// GetZoomFactor()
+//-------------------------------------------------------------------------
+double PlotPanel::GetZoomFactor(double zf)
+{
+    return m_zoomFactor;
+}
+
+//-------------------------------------------------------------------------
+// draw()
+//-------------------------------------------------------------------------
+void PlotPanel::draw(wxAutoBufferedPaintDC& pDC)
+{
+    printf("PlotPanel::draw()");
+    wxMemoryDC m_mDC;
+    m_mDC.SelectObject(*m_pBmp);
+    m_rCtrl  = GetClientRect();
+    m_rGrid  = m_rCtrl;
+
+    m_rGrid = m_rGrid.Deflate(PLOT_BORDER + (XLEFT_OFFSET/2), (PLOT_BORDER + (YBOTTOM_OFFSET/2)));
+    m_rGrid.Offset(PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER);
+
+    pDC.Clear();
+    m_rPlot = wxRect(PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER, m_rGrid.GetWidth(), m_rGrid.GetHeight());
+    if(m_firstPass)
+    {
+        m_firstPass = false;
+        m_mDC.FloodFill(0, 0, VERY_LTGREY_COLOR);
+
+        // Draw a filled rectangle with aborder
+        wxBrush ltGraphBkgBrush = wxBrush(DARK_BLUE_COLOR);
+        m_mDC.SetBrush(ltGraphBkgBrush);
+        m_mDC.SetPen(wxPen(BLACK_COLOR, 0));
+        m_mDC.DrawRectangle(m_rPlot);
+    }
+    if(m_newdata)
+    {
+        m_newdata = false;
+        int t = m_rPlot.GetTop();
+        int l = m_rPlot.GetLeft();
+//        int r = m_rPlot.GetRight();
+        int h = m_rPlot.GetHeight();
+        int w = m_rPlot.GetWidth();
+        pDC.Blit(l, t, w, h, &m_mDC, l, t);
+    }
+    drawGraticule(pDC);
+    m_mDC.SetBrush(wxNullBrush);
+    m_mDC.SelectObject(wxNullBitmap);
+}
+
+//-------------------------------------------------------------------------
+// drawGraticule()
+//-------------------------------------------------------------------------
+void PlotPanel::drawGraticule(wxAutoBufferedPaintDC& pDC)
+{
+    int p;
+    char buf[15];
+    wxString s;
+
+    // Vertical gridlines
+    pDC.SetPen(m_penShortDash);
+    for(p = (PLOT_BORDER + XLEFT_OFFSET + GRID_INCREMENT); p < ((m_rGrid.GetWidth() - XLEFT_OFFSET) + GRID_INCREMENT); p += GRID_INCREMENT)
+    {
+        pDC.DrawLine(p, (m_rGrid.GetHeight() + PLOT_BORDER), p, PLOT_BORDER);
+    }
+    // Horizontal gridlines
+    pDC.SetPen(m_penDotDash);
+    for(p = (m_rGrid.GetHeight() - GRID_INCREMENT); p > PLOT_BORDER; p -= GRID_INCREMENT)
+    {
+        pDC.DrawLine(PLOT_BORDER + XLEFT_OFFSET, (p + PLOT_BORDER), (m_rGrid.GetWidth() + PLOT_BORDER + XLEFT_OFFSET), (p + PLOT_BORDER));
+    }
+    // Label the X-Axis
+    pDC.SetPen(wxPen(GREY_COLOR, 1));
+    for(p = GRID_INCREMENT; p < (m_rGrid.GetWidth() - YBOTTOM_OFFSET); p += GRID_INCREMENT)
+    {
+        sprintf(buf, "%1.1f Hz",(double)(p / 10));
+        pDC.DrawText(buf, p - PLOT_BORDER + XLEFT_OFFSET, m_rGrid.GetHeight() + YBOTTOM_OFFSET/2);
+    }
+    // Label the Y-Axis
+    //for(p = GRID_INCREMENT; p < (h - YBOTTOM_OFFSET); p += GRID_INCREMENT)
+    for(p = (m_rGrid.GetHeight() - GRID_INCREMENT); p > PLOT_BORDER; p -= GRID_INCREMENT)
+    {
+        sprintf(buf, "%1.0f", (double)((m_rGrid.GetHeight() - p) * -10));
+        pDC.DrawText(buf, XLEFT_TEXT_OFFSET, p);
+    }
+}
+
+//-------------------------------------------------------------------------
+// paintEvent()
+//
+// Called by the system of by wxWidgets when the panel needs
+// to be redrawn. You can also trigger this call by calling
+// Refresh()/Update().
+//-------------------------------------------------------------------------
+void PlotPanel::OnPaint(wxPaintEvent & evt)
+{
+    wxAutoBufferedPaintDC pdc(this);
+    draw(pdc);
+}
+
diff --git a/src/fdmdv2_plot.h b/src/fdmdv2_plot.h
new file mode 100644
index 0000000..25309d3
--- /dev/null
+++ b/src/fdmdv2_plot.h
@@ -0,0 +1,150 @@
+//==========================================================================
+// Name:            fdmdv2_plot.h
+// Purpose:         Declares simple wxWidgets application with GUI
+// Created:         Apr. 10, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+//#include "fdmdv2_main.h"
+#ifndef __FDMDV2_PLOT__
+#define __FDMDV2_PLOT__
+#include <wx/wx.h>
+#include <wx/aui/auibook.h>
+#include <wx/rawbmp.h>
+#include <wx/image.h>
+#include <wx/dcbuffer.h>
+
+#define MAX_ZOOM            7
+#define MAX_BMP_X           (400 * MAX_ZOOM)
+#define MAX_BMP_Y           (400 * MAX_ZOOM)
+#define DATA_LINE_HEIGHT    10
+#define TEXT_BASELINE_OFFSET_Y  -5
+
+
+#define wxUSE_FILEDLG       1
+#define wxUSE_LIBPNG        1
+#define wxUSE_LIBJPEG       1
+#define wxUSE_GIF           1
+#define wxUSE_PCX           1
+#define wxUSE_LIBTIFF       1
+
+#define PLOT_BORDER         12
+#define XLEFT_OFFSET        40
+#define XLEFT_TEXT_OFFSET   6
+#define YBOTTOM_OFFSET      20
+#define YBOTTOM_TEXT_OFFSET 15
+#define GRID_INCREMENT      50
+
+#define BLACK_COLOR         wxColor(0x00, 0x00, 0x00)
+#define GREY_COLOR          wxColor(0x80, 0x80, 0x80)
+#define DARK_GREY_COLOR     wxColor(0x40, 0x40, 0x40)
+#define MEDIUM_GREY_COLOR   wxColor(0xC0, 0xC0, 0xC0)
+#define LIGHT_GREY_COLOR    wxColor(0xE0, 0xE0, 0xE0)
+#define VERY_LTGREY_COLOR   wxColor(0xF8, 0xF8, 0xF8)
+#define WHITE_COLOR         wxColor(0xFF, 0xFF, 0xFF)
+
+#define DARK_BLUE_COLOR     wxColor(0x00, 0x00, 0x60)
+#define BLUE_COLOR          wxColor(0x00, 0x00, 0xFF)
+#define LIGHT_BLUE_COLOR    wxColor(0x80, 0x80, 0xFF)
+
+#define RED_COLOR           wxColor(0xFF, 0x5E, 0x5E)
+#define LIGHT_RED_COLOR     wxColor(0xFF, 0xE0, 0xE0)
+#define DARK_RED_COLOR      wxColor(0xFF, 0x00, 0x00)
+#define PINK_COLOR          wxColor(0xFF, 0x80, 0xFF)
+
+#define LIGHT_GREEN_COLOR   wxColor(0xE3, 0xFF, 0xE0)
+#define GREEN_COLOR         wxColor(0x95, 0xFF, 0x8A)
+#define DARK_GREEN_COLOR    wxColor(0x20, 0xFF, 0x08)
+#define VERY_GREEN_COLOR    wxColor(0x00, 0xFF, 0x00)
+
+#define YELLOW_COLOR        wxColor(0xFF, 0xFF, 0x5E)
+#define LIGHT_YELLOW_COLOR  wxColor(0xFF, 0xFF, 0xB5)
+#define DARK_YELLOW_COLOR   wxColor(0xFF, 0xFF, 0x08)
+
+class MainFrame;
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlotPanel
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class PlotPanel : public wxPanel
+{
+    public:
+        PlotPanel(wxFrame* parent);
+        ~PlotPanel();
+        wxPen               m_penShortDash;
+        wxPen               m_penDotDash;
+        wxPen               m_penSolid;
+        wxRect              m_rCtrlPrev;
+        wxRect              m_rCtrl;
+        wxRect              m_rGrid;
+        wxRect              m_rPlot;
+        MainFrame           *m_pTopFrame;
+        wxAuiNotebook       *m_pNoteBook;
+        double              m_label_size;
+        wxSize              m_Bufsz;
+        bool                m_newdata;
+        wxImage             m_oImage;
+        wxBitmap            *m_pBmp;
+        wxNativePixelData   *m_pPix;
+
+        // some useful events
+        void            OnMouseMove(wxMouseEvent& event);
+        virtual void    OnMouseLeftDown(wxMouseEvent& event);
+        void            OnMouseLeftUp(wxMouseEvent& event);
+        virtual void    OnMouseRightDown(wxMouseEvent& event);
+        void            OnMouseWheelMoved(wxMouseEvent& event);
+        void            OnClose(wxCloseEvent& event ){ event.Skip(); }
+        void            OnSize( wxSizeEvent& event );
+        void            OnErase(wxEraseEvent& event);
+        void            OnPaint(wxPaintEvent& event);
+        //void OnUpdateUI( wxUpdateUIEvent& event ){ event.Skip(); }
+
+        void            paintEvent(wxPaintEvent & evt);
+        virtual void    draw(wxAutoBufferedPaintDC&  pdc);
+        virtual void    drawGraticule(wxAutoBufferedPaintDC&  pdc);
+        virtual double  SetZoomFactor(double zf);
+        virtual double  GetZoomFactor(double zf);
+        virtual void    OnShow(wxShowEvent& event);
+        virtual double  GetLabelSize();
+        virtual void    SetLabelSize(double size);
+
+    protected:
+        int             m_x;
+        int             m_y;
+        int             m_left;
+        int             m_top;
+        int             m_prev_w;
+        int             m_prev_h;
+        int             m_prev_x;
+        int             m_prev_y;
+        bool            m_use_bitmap;
+        bool            m_clip;
+        bool            m_rubberBand;
+        bool            m_mouseDown;
+        bool            m_firstPass;
+        double          m_zoomFactor;
+        int             m_greyscale;
+        int             m_line_color;
+    DECLARE_EVENT_TABLE()
+};
+#endif //__FDMDV2_PLOT__
diff --git a/src/fdmdv2_plot_scalar.cpp b/src/fdmdv2_plot_scalar.cpp
new file mode 100644
index 0000000..9a794f5
--- /dev/null
+++ b/src/fdmdv2_plot_scalar.cpp
@@ -0,0 +1,344 @@
+//==========================================================================
+// Name:            fdmdv2_plot_scalar.cpp
+// Purpose:         Plots scalar amplitude against time
+// Created:         June 22, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <string.h>
+#include "wx/wx.h"
+#include "fdmdv2_main.h"
+#include "fdmdv2_plot_scalar.h"
+
+BEGIN_EVENT_TABLE(PlotScalar, PlotPanel)
+    EVT_PAINT           (PlotScalar::OnPaint)
+    EVT_MOTION          (PlotScalar::OnMouseMove)
+    EVT_MOUSEWHEEL      (PlotScalar::OnMouseWheelMoved)
+    EVT_SIZE            (PlotScalar::OnSize)
+    EVT_SHOW            (PlotScalar::OnShow)
+//    EVT_ERASE_BACKGROUND(PlotScalar::OnErase)
+END_EVENT_TABLE()
+
+//----------------------------------------------------------------
+// PlotScalar()
+//----------------------------------------------------------------
+PlotScalar::PlotScalar(wxFrame* parent, 
+                       int    channels,           // number on channels to plot
+		       float  t_secs,             // time covered by entire x axis in seconds
+		       float  sample_period_secs, // time between each sample in seconds
+		       float  a_min,              // min ampltude of samples being plotted
+		       float  a_max,              // max ampltude of samples being plotted
+		       float  graticule_t_step,   // time step of x (time) axis graticule in seconds
+		       float  graticule_a_step,   // step of amplitude axis graticule
+		       const char a_fmt[],        // printf format string for amplitude axis labels
+                       int    mini                // true for mini-plot - don't draw graticule
+		       ): PlotPanel(parent)
+{
+    int i;
+
+    m_rCtrl = GetClientRect();
+
+    m_channels = channels;
+    m_t_secs = t_secs;
+    m_sample_period_secs = sample_period_secs;
+    m_a_min = a_min;
+    m_a_max = a_max;
+    m_graticule_t_step = graticule_t_step;
+    m_graticule_a_step = graticule_a_step;
+    assert(strlen(a_fmt) < 15);
+    strcpy(m_a_fmt, a_fmt);
+    m_mini = mini;
+    m_bar_graph = 0;
+    m_logy = 0;
+
+    // work out number of samples we will store and allocate storage
+
+    m_samples = m_t_secs/m_sample_period_secs;
+    m_mem = new float[m_samples*m_channels];
+
+    for(i = 0; i < m_samples*m_channels; i++)
+    {
+        m_mem[i] = 0.0;
+    }
+}
+
+//----------------------------------------------------------------
+// ~PlotScalar()
+//----------------------------------------------------------------
+PlotScalar::~PlotScalar()
+{
+    delete m_mem;
+}
+
+//----------------------------------------------------------------
+// add_new_sample()
+//----------------------------------------------------------------
+void PlotScalar::add_new_sample(int channel, float sample)
+{
+    int i;
+    int offset = channel*m_samples;
+
+    assert(channel < m_channels);
+
+    for(i = 0; i < m_samples-1; i++)
+    {
+        m_mem[offset+i] = m_mem[offset+i+1];
+    }
+    m_mem[offset+m_samples-1] = sample;
+}
+
+//----------------------------------------------------------------
+// add_new_samples()
+//----------------------------------------------------------------
+void  PlotScalar::add_new_samples(int channel, float samples[], int length)
+{
+    int i;
+    int offset = channel*m_samples;
+
+    assert(channel < m_channels);
+
+   for(i = 0; i < m_samples-length; i++)
+        m_mem[offset+i] = m_mem[offset+i+length];
+    for(; i < m_samples; i++)
+	m_mem[offset+i] = *samples++;
+}
+
+//----------------------------------------------------------------
+// add_new_short_samples()
+//----------------------------------------------------------------
+void  PlotScalar::add_new_short_samples(int channel, short samples[], int length, float scale_factor)
+{
+    int i;
+    int offset = channel*m_samples;
+
+    assert(channel < m_channels);
+
+    for(i = 0; i < m_samples-length; i++)
+        m_mem[offset+i] = m_mem[offset+i+length];
+    for(; i < m_samples; i++)
+	m_mem[offset+i] = (float)*samples++/scale_factor;
+}
+
+//----------------------------------------------------------------
+// draw()
+//----------------------------------------------------------------
+void PlotScalar::draw(wxAutoBufferedPaintDC&  dc)
+{
+    float index_to_px;
+    float a_to_py;
+    int   i;
+    int   prev_x, prev_y;
+    float a;
+
+    m_rCtrl = GetClientRect();
+    m_rGrid = m_rCtrl;
+    if (!m_mini)
+        m_rGrid = m_rGrid.Deflate(PLOT_BORDER + (XLEFT_OFFSET/2), (PLOT_BORDER + (YBOTTOM_OFFSET/2)));
+
+    //printf("h %d w %d\n", m_rCtrl.GetWidth(), m_rCtrl.GetHeight());
+    //printf("h %d w %d\n", m_rGrid.GetWidth(), m_rGrid.GetHeight());
+
+    // black background
+
+    dc.Clear();
+    if (m_mini)
+        m_rPlot = wxRect(0, 0, m_rGrid.GetWidth(), m_rGrid.GetHeight());        
+    else
+        m_rPlot = wxRect(PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER, m_rGrid.GetWidth(), m_rGrid.GetHeight());
+   
+    wxBrush ltGraphBkgBrush = wxBrush(BLACK_COLOR);
+    dc.SetBrush(ltGraphBkgBrush);
+    dc.SetPen(wxPen(BLACK_COLOR, 0));
+    dc.DrawRectangle(m_rPlot);
+
+    index_to_px = (float)m_rGrid.GetWidth()/m_samples;
+    a_to_py = (float)m_rGrid.GetHeight()/(m_a_max - m_a_min);
+
+    wxPen pen;
+    pen.SetColour(DARK_GREEN_COLOR);
+    pen.SetWidth(1);
+    dc.SetPen(pen);
+
+    // draw all samples
+
+    prev_x = prev_y = 0; // stop warning
+
+    // plot each channel 
+
+    int offset, x, y;
+    for(offset=0; offset<m_channels*m_samples; offset+=m_samples) {
+
+        for(i = 0; i < m_samples; i++) {
+            a = m_mem[offset+i];
+            if (a < m_a_min) a = m_a_min;
+            if (a > m_a_max) a = m_a_max;
+
+            // invert y axis and offset by minimum
+
+            y = m_rGrid.GetHeight() - a_to_py * a + m_a_min*a_to_py;
+
+            // regular point-point line graph
+
+            x = index_to_px * i;
+
+            // put inside plot window
+
+            if (!m_mini) {
+                x += PLOT_BORDER + XLEFT_OFFSET;
+                y += PLOT_BORDER;
+            }
+
+            if (m_bar_graph) {
+
+                if (m_logy) {
+
+                    // can't take log(0)
+
+                    assert(m_a_min > 0.0); 
+                    assert(m_a_max > 0.0);
+
+                    float norm = (log10(a) - log10(m_a_min))/(log10(m_a_max) - log10(m_a_min));
+                    y = m_rGrid.GetHeight()*(1.0 - norm);
+                } else {
+                    y = m_rGrid.GetHeight() - a_to_py * a + m_a_min*a_to_py;
+                }
+
+                // use points to make a bar graph
+
+                int x1, x2, y1;
+
+                x1 = index_to_px * ((float)i - 0.5);
+                x2 = index_to_px * ((float)i + 0.5);
+                y1 = m_rGrid.GetHeight();
+                x1 += PLOT_BORDER + XLEFT_OFFSET; x2 += PLOT_BORDER + XLEFT_OFFSET;
+                y1 += PLOT_BORDER;
+                dc.DrawLine(x1, y1, x1, y); dc.DrawLine(x1, y, x2, y); dc.DrawLine(x2, y, x2, y1);
+            }
+            else {
+                if (i)
+                    dc.DrawLine(x, y, prev_x, prev_y);
+                prev_x = x; prev_y = y;
+            }
+        }
+    }
+
+    drawGraticule(dc);
+}
+
+//-------------------------------------------------------------------------
+// drawGraticule()
+//-------------------------------------------------------------------------
+void PlotScalar::drawGraticule(wxAutoBufferedPaintDC&  dc)
+{
+    float    t, a;
+    int      x, y, text_w, text_h;
+    char     buf[15];
+    wxString s;
+    float    sec_to_px;
+    float    a_to_py;
+
+    wxBrush ltGraphBkgBrush;
+    ltGraphBkgBrush.SetStyle(wxBRUSHSTYLE_TRANSPARENT);
+    ltGraphBkgBrush.SetColour(*wxBLACK);
+    dc.SetBrush(ltGraphBkgBrush);
+    dc.SetPen(wxPen(BLACK_COLOR, 1));
+
+    sec_to_px = (float)m_rGrid.GetWidth()/m_t_secs;
+    a_to_py = (float)m_rGrid.GetHeight()/(m_a_max - m_a_min);
+
+    // upper LH coords of plot area are (PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER)
+    // lower RH coords of plot area are (PLOT_BORDER + XLEFT_OFFSET + m_rGrid.GetWidth(), 
+    //                                   PLOT_BORDER + m_rGrid.GetHeight())
+
+    // Vertical gridlines
+
+    dc.SetPen(m_penShortDash);
+    for(t=0; t<=m_t_secs; t+=m_graticule_t_step) {
+	x = t*sec_to_px;
+	if (m_mini) {
+            dc.DrawLine(x, m_rGrid.GetHeight(), x, 0);
+        }
+        else {
+            x += PLOT_BORDER + XLEFT_OFFSET;
+            dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, PLOT_BORDER);
+        }
+        if (!m_mini) {
+            sprintf(buf, "%2.1fs", t);
+            GetTextExtent(buf, &text_w, &text_h);
+            dc.DrawText(buf, x - text_w/2, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET);
+        }
+    }
+
+    // Horizontal gridlines
+
+    dc.SetPen(m_penDotDash);
+    for(a=m_a_min; a<m_a_max; ) {
+        if (m_logy) {
+            float norm = (log10(a) - log10(m_a_min))/(log10(m_a_max) - log10(m_a_min));
+            y = m_rGrid.GetHeight()*(1.0 - norm);
+        }
+	else {
+            y = m_rGrid.GetHeight() - a*a_to_py + m_a_min*a_to_py;
+        }
+	if (m_mini) {
+            dc.DrawLine(0, y, m_rGrid.GetWidth(), y);
+        }
+        else {
+            y += PLOT_BORDER;
+            dc.DrawLine(PLOT_BORDER + XLEFT_OFFSET, y, 
+                        (m_rGrid.GetWidth() + PLOT_BORDER + XLEFT_OFFSET), y);
+        }
+        if (!m_mini) {
+            sprintf(buf, m_a_fmt, a);
+            GetTextExtent(buf, &text_w, &text_h);
+            dc.DrawText(buf, PLOT_BORDER + XLEFT_OFFSET - text_w - XLEFT_TEXT_OFFSET, y-text_h/2);
+        }
+
+        if (m_logy) {
+            // m_graticule_a_step ==  0.1 means 10 steps/decade
+            float log10_step_size = floor(log10(a));
+            a += pow(10,log10_step_size);
+        }
+        else {
+            a += m_graticule_a_step;
+        }
+   }
+
+
+}
+
+//----------------------------------------------------------------
+// OnPaint()
+//----------------------------------------------------------------
+void PlotScalar::OnPaint(wxPaintEvent& event)
+{
+    wxAutoBufferedPaintDC dc(this);
+    draw(dc);
+}
+
+//----------------------------------------------------------------
+// OnSize()
+//----------------------------------------------------------------
+void PlotScalar::OnSize(wxSizeEvent& event)
+{
+}
+
+//----------------------------------------------------------------
+// OnShow()
+//----------------------------------------------------------------
+void PlotScalar::OnShow(wxShowEvent& event)
+{
+}
diff --git a/src/fdmdv2_plot_scalar.h b/src/fdmdv2_plot_scalar.h
new file mode 100644
index 0000000..4b668ff
--- /dev/null
+++ b/src/fdmdv2_plot_scalar.h
@@ -0,0 +1,78 @@
+//==========================================================================
+// Name:            fdmdv2_plot_scalar.h
+// Purpose:         Defines a scalar plot derivative of fdmdv2_plot.
+// Created:         June 22, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __FDMDV2_PLOT_SCALAR__
+#define __FDMDV2_PLOT_SCALAR__
+
+#include "fdmdv2_plot.h"
+#include "fdmdv2_defines.h"
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlotScalar
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class PlotScalar: public PlotPanel
+{
+    public:
+
+    PlotScalar(wxFrame* parent,
+               int   channels,
+	       float t_secs, 
+	       float sample_period_secs,
+	       float a_min,
+	       float a_max,
+	       float graticule_t_step,   
+	       float graticule_a_step,
+	       const char  a_fmt[],
+               int   mini
+	       );
+        ~PlotScalar();
+         void add_new_sample(int channel, float sample);
+         void add_new_samples(int channel, float samples[], int length);
+         void add_new_short_samples(int channel, short samples[], int length, float scale_factor);
+         void setBarGraph(int bar_graph) { m_bar_graph = bar_graph; }
+         void setLogY(int logy) { m_logy = logy; }
+
+    protected:
+
+         int      m_channels;
+	 float    m_t_secs;
+	 float    m_sample_period_secs;
+	 float    m_a_min;
+	 float    m_a_max;
+	 float    m_graticule_t_step;   
+	 float    m_graticule_a_step;
+	 char     m_a_fmt[15];
+         int      m_mini;
+	 int      m_samples;
+	 float   *m_mem;              
+         int      m_bar_graph;                 // non zero to plot bar graphs 
+         int      m_logy;                      // plot graph on log scale
+
+         void draw(wxAutoBufferedPaintDC&  dc);
+         void drawGraticule(wxAutoBufferedPaintDC&  dc);
+         void OnPaint(wxPaintEvent& event);
+         void OnSize(wxSizeEvent& event);
+         void OnShow(wxShowEvent& event);
+
+         DECLARE_EVENT_TABLE()
+};
+
+#endif // __FDMDV2_PLOT_SCALAR__
+
diff --git a/src/fdmdv2_plot_scatter.cpp b/src/fdmdv2_plot_scatter.cpp
new file mode 100644
index 0000000..d7e88c7
--- /dev/null
+++ b/src/fdmdv2_plot_scatter.cpp
@@ -0,0 +1,289 @@
+//==========================================================================
+// Name:            fdmdv2_plot_scatter.cpp
+// Purpose:         A scatter plot derivative of fdmdv2_plot.
+// Created:         June 24, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <string.h>
+#include "wx/wx.h"
+#include "fdmdv2_plot_scatter.h"
+
+BEGIN_EVENT_TABLE(PlotScatter, PlotPanel)
+    EVT_PAINT           (PlotScatter::OnPaint)
+    EVT_MOTION          (PlotScatter::OnMouseMove)
+    EVT_MOUSEWHEEL      (PlotScatter::OnMouseWheelMoved)
+    EVT_SIZE            (PlotScatter::OnSize)
+    EVT_SHOW            (PlotScatter::OnShow)
+//    EVT_ERASE_BACKGROUND(PlotScatter::OnErase)
+END_EVENT_TABLE()
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// PlotScatter
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PlotScatter::PlotScatter(wxFrame* parent) : PlotPanel(parent)
+{
+    int i;
+
+    for(i=0; i < SCATTER_MEM_SYMS_MAX; i++)
+    {
+        m_mem[i].real = 0.0;
+        m_mem[i].imag = 0.0;
+    }
+
+    m_filter_max_xy = m_filter_max_y = 0.1;
+
+    // defaults so we start off with something sensible
+
+    Nsym = 14+1;
+    scatterMemSyms = ((int)(SCATTER_MEM_SECS*(Nsym/DT)));
+    assert(scatterMemSyms <= SCATTER_MEM_SYMS_MAX);
+
+    Ncol = 0;
+    memset(eye_mem, 0, sizeof(eye_mem));
+
+    mode = PLOT_SCATTER_MODE_SCATTER;
+}
+
+// changing number of carriers changes number of symbols to plot
+void PlotScatter::setNc(int Nc) {
+    Nsym = Nc;
+    assert(Nsym <= (MODEM_STATS_NC_MAX+1));
+    scatterMemSyms = ((int)(SCATTER_MEM_SECS*(Nsym/DT)));
+    assert(scatterMemSyms <= SCATTER_MEM_SYMS_MAX);
+}
+
+//----------------------------------------------------------------
+// draw()
+//----------------------------------------------------------------
+void PlotScatter::draw(wxAutoBufferedPaintDC& dc)
+{
+    float x_scale;
+    float y_scale;
+    int   i,j;
+    int   x;
+    int   y;
+    wxColour sym_to_colour[] = {wxColor(0,0,255), 
+                                wxColor(0,255,0),
+                                wxColor(0,255,255),
+                                wxColor(255,0,0),
+                                wxColor(255,0,255), 
+                                wxColor(255,255,0),
+                                wxColor(255,255,255),
+                                wxColor(0,0,255), 
+                                wxColor(0,255,0),
+                                wxColor(0,255,255),
+                                wxColor(255,0,0),
+                                wxColor(255,0,255), 
+                                wxColor(255,255,0),
+                                wxColor(255,255,255),
+                                wxColor(0,0,255), 
+                                wxColor(0,255,0),
+                                wxColor(0,255,255),
+                                wxColor(255,0,0),
+                                wxColor(255,0,255)
+    };
+
+    m_rCtrl = GetClientRect();
+    m_rGrid = m_rCtrl;
+    m_rGrid = m_rGrid.Deflate(PLOT_BORDER + (XLEFT_OFFSET/2), (PLOT_BORDER + (YBOTTOM_OFFSET/2)));
+
+    // black background
+
+    dc.Clear();
+    m_rPlot = wxRect(PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER, m_rGrid.GetWidth(), m_rGrid.GetHeight());
+    wxBrush ltGraphBkgBrush = wxBrush(BLACK_COLOR);
+    dc.SetBrush(ltGraphBkgBrush);
+    dc.SetPen(wxPen(BLACK_COLOR, 0));
+    dc.DrawRectangle(m_rPlot);
+ 
+    wxPen pen;
+    pen.SetWidth(1); // note this is ignored by DrawPoint
+
+    if (mode == PLOT_SCATTER_MODE_SCATTER) {
+
+        // automatically scale, first measure the maximum value
+
+        float max_xy = 1E-12;
+        float real,imag;
+        for(i=0; i< scatterMemSyms; i++) {
+            real = fabs(m_mem[i].real);
+            imag = fabs(m_mem[i].imag);
+            if (real > max_xy)
+                max_xy = real;
+            if (imag > max_xy)
+                max_xy = imag;
+        }
+
+        // smooth it out and set a lower limit to prevent divide by 0 issues
+
+        m_filter_max_xy = BETA*m_filter_max_xy + (1 - BETA)*2.5*max_xy;
+        if (m_filter_max_xy < 0.001)
+            m_filter_max_xy = 0.001;
+
+        // quantise to log steps to prevent scatter scaling bobbing about too
+        // much as scaling varies
+
+        float quant_m_filter_max_xy = exp(floor(0.5+log(m_filter_max_xy)));
+        //printf("max_xy: %f m_filter_max_xy: %f quant_m_filter_max_xy: %f\n", max_xy, m_filter_max_xy, quant_m_filter_max_xy);
+
+        x_scale = (float)m_rGrid.GetWidth()/quant_m_filter_max_xy;
+        y_scale = (float)m_rGrid.GetHeight()/quant_m_filter_max_xy;
+
+        // draw all samples
+
+        for(i = 0; i < scatterMemSyms; i++) {
+            x = x_scale * m_mem[i].real + m_rGrid.GetWidth()/2;
+            y = y_scale * m_mem[i].imag + m_rGrid.GetHeight()/2;
+            x += PLOT_BORDER + XLEFT_OFFSET;
+            y += PLOT_BORDER;
+            pen.SetColour(sym_to_colour[i%Nsym]);
+            dc.SetPen(pen);
+            dc.DrawPoint(x, y);
+        }
+    }
+
+    if (mode == PLOT_SCATTER_MODE_EYE) {
+
+        pen.SetColour(DARK_GREEN_COLOR);
+        pen.SetWidth(1);
+        dc.SetPen(pen);
+
+        // automatically scale, first measure the maximum Y value
+
+        float max_y = 1E-12;
+        float min_y = 1E+12;
+        for(i=0; i<SCATTER_EYE_MEM_ROWS; i++) {
+            for(j=0; j<Ncol; j++) {
+                if (eye_mem[i][j] > max_y) {
+                    max_y = eye_mem[i][j];
+                }
+                if (eye_mem[i][j] < min_y) {
+                    min_y = eye_mem[i][j];
+                }
+            }
+        }
+ 
+        // smooth it out and set a lower limit to prevent divide by 0 issues
+
+        m_filter_max_y = BETA*m_filter_max_y + (1 - BETA)*2.5*max_y;
+        if (m_filter_max_y < 0.001)
+            m_filter_max_y = 0.001;
+
+        // quantise to log steps to prevent scatter scaling bobbing about too
+        // much as scaling varies
+
+        float quant_m_filter_max_y = exp(floor(0.5+log(m_filter_max_y)));
+        //printf("min_y: %4.3f max_y: %4.3f quant_m_filter_max_y: %4.3f\n", min_y, max_y, quant_m_filter_max_y);
+
+        x_scale = (float)m_rGrid.GetWidth()/Ncol;
+        y_scale = (float)m_rGrid.GetHeight()/quant_m_filter_max_y;
+        //printf("GetWidth(): %d GetHeight(): %d\n", m_rGrid.GetWidth(), m_rGrid.GetHeight());
+
+        // plot eye traces row by row
+
+        int prev_x, prev_y;
+        prev_x = prev_y = 0;
+        for(i=0; i<SCATTER_EYE_MEM_ROWS; i++) {
+            //printf("row: ");
+            for(j=0; j<Ncol; j++) {
+                x = x_scale * j;
+                y = m_rGrid.GetHeight()*0.75 - y_scale * eye_mem[i][j];
+               //printf("%4d,%4d  ", x, y);
+                x += PLOT_BORDER + XLEFT_OFFSET;
+                y += PLOT_BORDER;
+                pen.SetColour(sym_to_colour[i%4]);
+                dc.SetPen(pen);
+                if (j)
+                    dc.DrawLine(x, y, prev_x, prev_y);
+                prev_x = x; prev_y = y;
+            }
+            //printf("\n");
+        }
+        
+    }
+}
+
+//----------------------------------------------------------------
+// add_new_samples()
+//----------------------------------------------------------------
+void PlotScatter::add_new_samples_scatter(COMP samples[])
+{
+    int i,j;
+
+    // shift memory
+
+    for(i = 0; i < scatterMemSyms - Nsym; i++)
+    {
+        m_mem[i] = m_mem[i+Nsym];
+    }
+
+    // new samples
+
+    for(j=0; i < scatterMemSyms; i++,j++)
+    {
+        m_mem[i] = samples[j];
+    }
+}
+
+/* add a row of eye samples, updating buffer */
+
+void PlotScatter::add_new_samples_eye(float samples[], int n)
+{
+    int i,j;
+
+    Ncol = n; /* this should be constant for a given modem config */
+
+    assert(n <= PLOT_SCATTER_EYE_MAX_SAMPLES_ROW);
+
+    // eye traces are arrnaged in rows, shift memory of traces
+
+    for(i=0; i<SCATTER_EYE_MEM_ROWS-1; i++) {
+        for(j=0; j<Ncol; j++) {
+            eye_mem[i][j] = eye_mem[i+1][j];
+        }
+    }
+
+    // new samples in last row
+
+    for(j=0; j<Ncol; j++) {
+        eye_mem[SCATTER_EYE_MEM_ROWS-1][j] = samples[j];
+    }
+}
+
+//----------------------------------------------------------------
+// OnPaint()
+//----------------------------------------------------------------
+void PlotScatter::OnPaint(wxPaintEvent& event)
+{
+    wxAutoBufferedPaintDC dc(this);
+    draw(dc);
+}
+
+//----------------------------------------------------------------
+// OnSize()
+//----------------------------------------------------------------
+void PlotScatter::OnSize(wxSizeEvent& event)
+{
+    // todo: clear screen
+}
+
+//----------------------------------------------------------------
+// OnShow()
+//----------------------------------------------------------------
+void PlotScatter::OnShow(wxShowEvent& event)
+{
+}
diff --git a/src/fdmdv2_plot_scatter.h b/src/fdmdv2_plot_scatter.h
new file mode 100644
index 0000000..b5e3352
--- /dev/null
+++ b/src/fdmdv2_plot_scatter.h
@@ -0,0 +1,65 @@
+//==========================================================================
+// Name:            fdmdv2_plot_scatter.h
+// Purpose:         A scatter plot derivative of fdmdv2_plot.
+// Created:         June 24, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __FDMDV2_PLOT_SCATTER__
+#define __FDMDV2_PLOT_SCATTER__
+
+#include "comp.h"
+#include "fdmdv2_plot.h"
+#include "fdmdv2_defines.h"
+
+#define PLOT_SCATTER_MODE_SCATTER            0
+#define PLOT_SCATTER_MODE_EYE                1
+#define PLOT_SCATTER_EYE_MAX_SAMPLES_ROW    80
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlotScatter
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class PlotScatter : public PlotPanel
+{
+    public:
+        PlotScatter(wxFrame* parent);
+        ~PlotScatter(){};
+	void add_new_samples_scatter(COMP samples[]);
+	void add_new_samples_eye(float samples[], int n);
+	void setNc(int Nc);
+        void setEyeScatter(int eye_mode) {mode = eye_mode;}
+
+    protected:
+        int  mode;
+        COMP m_mem[SCATTER_MEM_SYMS_MAX];
+        COMP m_new_samples[MODEM_STATS_NC_MAX+1];
+        float eye_mem[SCATTER_EYE_MEM_ROWS][PLOT_SCATTER_EYE_MAX_SAMPLES_ROW];
+
+        void draw(wxAutoBufferedPaintDC&  dc);
+        void OnPaint(wxPaintEvent& event);
+        void OnSize(wxSizeEvent& event);
+        void OnShow(wxShowEvent& event);
+
+        DECLARE_EVENT_TABLE()
+
+    private:
+        int   Nsym;
+        int   Ncol;
+        int   scatterMemSyms;
+        float m_filter_max_xy, m_filter_max_y;
+};
+
+#endif //__FDMDV2_PLOT_SCATTER__
diff --git a/src/fdmdv2_plot_spectrum.cpp b/src/fdmdv2_plot_spectrum.cpp
new file mode 100644
index 0000000..1f5be59
--- /dev/null
+++ b/src/fdmdv2_plot_spectrum.cpp
@@ -0,0 +1,267 @@
+//==========================================================================
+// Name:            fdmdv2_plot_waterfall.cpp
+// Purpose:         Implements a waterfall plot derivative of fdmdv2_plot.
+// Created:         June 23, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <string.h>
+#include "wx/wx.h"
+
+#include "fdmdv2_main.h"
+
+extern float g_avmag[];                 // average mag data passed to draw() 
+void fdmdv2_clickTune(float frequency); // callback to pass new click freq
+
+BEGIN_EVENT_TABLE(PlotSpectrum, PlotPanel)
+    EVT_MOTION          (PlotSpectrum::OnMouseMove)
+    EVT_LEFT_DOWN       (PlotSpectrum::OnMouseLeftDown)
+    EVT_LEFT_DCLICK     (PlotSpectrum::OnMouseLeftDoubleClick)
+    EVT_LEFT_UP         (PlotSpectrum::OnMouseLeftUp)
+    EVT_MOUSEWHEEL      (PlotSpectrum::OnMouseWheelMoved)
+    EVT_PAINT           (PlotSpectrum::OnPaint)
+    EVT_SHOW            (PlotSpectrum::OnShow)
+END_EVENT_TABLE()
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlotSpectrum
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PlotSpectrum::PlotSpectrum(wxFrame* parent, float *magdB, int n_magdB, 
+                           float min_mag_db, float max_mag_db, bool clickTune): PlotPanel(parent)
+{
+    m_greyscale     = 0;
+    m_Bufsz         = GetMaxClientSize();
+    m_newdata       = false;
+    m_firstPass     = true;
+    m_line_color    = 0;
+    SetLabelSize(10.0);
+
+    m_magdB         = magdB;
+    m_n_magdB       = n_magdB;     // number of points in magdB that covers 0 ... MAX_F_HZ of spectrum
+    m_max_mag_db    = max_mag_db;
+    m_min_mag_db    = min_mag_db;
+    m_rxFreq        = 0.0;
+    m_clickTune     = clickTune;
+}
+
+//----------------------------------------------------------------
+// ~PlotSpectrum()
+//----------------------------------------------------------------
+PlotSpectrum::~PlotSpectrum()
+{
+}
+
+//----------------------------------------------------------------
+// OnSize()
+//----------------------------------------------------------------
+void PlotSpectrum::OnSize(wxSizeEvent& event) {
+}
+
+//----------------------------------------------------------------
+// OnPaint()
+//----------------------------------------------------------------
+void PlotSpectrum::OnPaint(wxPaintEvent& event)
+{
+    wxAutoBufferedPaintDC dc(this);
+    draw(dc);
+}
+
+//----------------------------------------------------------------
+// OnShow()
+//----------------------------------------------------------------
+void PlotSpectrum::OnShow(wxShowEvent& event)
+{
+}
+
+//----------------------------------------------------------------
+// draw()
+//----------------------------------------------------------------
+void PlotSpectrum::draw(wxAutoBufferedPaintDC& dc)
+{
+    m_rCtrl  = GetClientRect();
+
+    // m_rGrid is coords of inner window we actually plot to.  We deflate it a bit
+    // to leave room for axis labels.  We need to work this out every time we draw
+    // as OnSize() may not be called before OnPaint(), for example when a new tab
+    // is selected
+
+    m_rGrid  = m_rCtrl;
+    m_rGrid = m_rGrid.Deflate(PLOT_BORDER + (XLEFT_OFFSET/2), (PLOT_BORDER + (YBOTTOM_OFFSET/2)));
+
+    dc.Clear();
+
+    // black background
+
+    m_rPlot = wxRect(PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER, m_rGrid.GetWidth(), m_rGrid.GetHeight());
+    wxBrush ltGraphBkgBrush = wxBrush(BLACK_COLOR);
+    dc.SetBrush(ltGraphBkgBrush);
+    dc.SetPen(wxPen(BLACK_COLOR, 0));
+    dc.DrawRectangle(m_rPlot);
+
+    // draw spectrum
+
+    int   x, y, prev_x, prev_y, index;
+    float index_to_px, mag_dB_to_py, mag;
+
+    m_newdata = false;
+
+    wxPen pen;
+    pen.SetColour(DARK_GREEN_COLOR);
+    pen.SetWidth(1);
+    dc.SetPen(pen);
+
+    index_to_px = (float)m_rGrid.GetWidth()/m_n_magdB;
+    mag_dB_to_py = (float)m_rGrid.GetHeight()/(m_max_mag_db - m_min_mag_db);
+
+    prev_x = PLOT_BORDER + XLEFT_OFFSET;
+    prev_y = PLOT_BORDER;
+    for(index = 0; index < m_n_magdB; index++)
+    {
+        x = index*index_to_px;
+        mag = m_magdB[index];
+        if (mag > m_max_mag_db) mag = m_max_mag_db;
+        if (mag < m_min_mag_db) mag = m_min_mag_db;
+        y = -(mag - m_max_mag_db) * mag_dB_to_py;
+
+        x += PLOT_BORDER + XLEFT_OFFSET;
+        y += PLOT_BORDER;
+
+        if (index)
+            dc.DrawLine(x, y, prev_x, prev_y);
+        prev_x = x; prev_y = y;
+    }
+
+    // and finally draw Graticule
+
+    drawGraticule(dc);
+
+}
+
+//-------------------------------------------------------------------------
+// drawGraticule()
+//-------------------------------------------------------------------------
+void PlotSpectrum::drawGraticule(wxAutoBufferedPaintDC&  dc)
+{
+    int      x, y, text_w, text_h;
+    char     buf[15];
+    wxString s;
+    float    f, mag, freq_hz_to_px, mag_dB_to_py;
+
+    wxBrush ltGraphBkgBrush;
+    ltGraphBkgBrush.SetStyle(wxBRUSHSTYLE_TRANSPARENT);
+    ltGraphBkgBrush.SetColour(*wxBLACK);
+    dc.SetBrush(ltGraphBkgBrush);
+    dc.SetPen(wxPen(BLACK_COLOR, 1));
+
+    freq_hz_to_px = (float)m_rGrid.GetWidth()/(MAX_F_HZ-MIN_F_HZ);
+    mag_dB_to_py = (float)m_rGrid.GetHeight()/(m_max_mag_db - m_min_mag_db);
+
+    // upper LH coords of plot area are (PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER)
+    // lower RH coords of plot area are (PLOT_BORDER + XLEFT_OFFSET + m_rGrid.GetWidth(), 
+    //                                   PLOT_BORDER + m_rGrid.GetHeight())
+
+    // Check if small screen size means text will overlap
+
+    int textXStep = STEP_F_HZ*freq_hz_to_px;
+    int textYStep = STEP_MAG_DB*mag_dB_to_py;
+    sprintf(buf, "%4.0fHz", (float)MAX_F_HZ - STEP_F_HZ);
+    GetTextExtent(buf, &text_w, &text_h);
+    int overlappedText = (text_w > textXStep) || (text_h > textYStep);
+    //printf("text_w: %d textXStep: %d text_h: %d textYStep: %d  overlappedText: %d\n", text_w, textXStep, 
+    //      text_h, textYStep, overlappedText);
+
+    // Vertical gridlines
+
+    for(f=STEP_F_HZ; f<MAX_F_HZ; f+=STEP_F_HZ) {
+	x = f*freq_hz_to_px;
+	x += PLOT_BORDER + XLEFT_OFFSET;
+
+        dc.SetPen(m_penShortDash);
+        dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, PLOT_BORDER);
+        dc.SetPen(wxPen(BLACK_COLOR, 1));
+        dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET);
+
+        sprintf(buf, "%4.0fHz", f);
+	GetTextExtent(buf, &text_w, &text_h);
+        if (!overlappedText)
+            dc.DrawText(buf, x - text_w/2, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET);
+    }
+
+    dc.SetPen(wxPen(BLACK_COLOR, 1));
+    for(f=STEP_MINOR_F_HZ; f<MAX_F_HZ; f+=STEP_MINOR_F_HZ) 
+    {
+        x = f*freq_hz_to_px;
+        x += PLOT_BORDER + XLEFT_OFFSET;
+        dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET-5);
+    }
+    
+    // Horizontal gridlines
+
+    dc.SetPen(m_penDotDash);
+    for(mag=m_min_mag_db; mag<=m_max_mag_db; mag+=STEP_MAG_DB) {
+	y = -(mag - m_max_mag_db) * mag_dB_to_py;
+	y += PLOT_BORDER;
+	dc.DrawLine(PLOT_BORDER + XLEFT_OFFSET, y, 
+		    (m_rGrid.GetWidth() + PLOT_BORDER + XLEFT_OFFSET), y);
+        sprintf(buf, "%3.0fdB", mag);
+	GetTextExtent(buf, &text_w, &text_h);
+        if (!overlappedText)
+            dc.DrawText(buf, PLOT_BORDER + XLEFT_OFFSET - text_w - XLEFT_TEXT_OFFSET, y-text_h/2);
+    }
+
+    // red rx tuning line
+    
+    if (m_rxFreq != 0.0) {
+        dc.SetPen(wxPen(RED_COLOR, 2));
+        x = m_rxFreq*freq_hz_to_px;
+        x += PLOT_BORDER + XLEFT_OFFSET;
+        //printf("m_rxFreq %f x %d\n", m_rxFreq, x);
+        dc.DrawLine(x, m_rGrid.GetHeight()+ PLOT_BORDER, x, m_rCtrl.GetHeight());
+    }
+
+}
+
+//-------------------------------------------------------------------------
+// OnMouseDown()
+//-------------------------------------------------------------------------
+void PlotSpectrum::OnMouseLeftDoubleClick(wxMouseEvent& event)
+{
+    m_mouseDown = true;
+    wxClientDC dc(this);
+
+    wxPoint pt(event.GetLogicalPosition(dc));
+
+    // map x coord to edges of actual plot
+    pt.x -= PLOT_BORDER + XLEFT_OFFSET;
+    pt.y -= PLOT_BORDER;
+
+    // valid click if inside of plot
+    if ((pt.x >= 0) && (pt.x <= m_rGrid.GetWidth()) && (pt.y >=0) && m_clickTune) {
+        float freq_hz_to_px = (float)m_rGrid.GetWidth()/(MAX_F_HZ-MIN_F_HZ);
+        float clickFreq = (float)pt.x/freq_hz_to_px;
+
+        // see PlotWaterfall::OnMouseDown()
+
+        fdmdv2_clickTune(clickFreq);
+    }
+}
diff --git a/src/fdmdv2_plot_spectrum.h b/src/fdmdv2_plot_spectrum.h
new file mode 100644
index 0000000..271eeb9
--- /dev/null
+++ b/src/fdmdv2_plot_spectrum.h
@@ -0,0 +1,58 @@
+//==========================================================================
+// Name:            fdmdv2_plot_spectrum.h
+// Purpose:         Defines a spectrum plot derived from fdmdv2_plot class.
+// Created:         June 22, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __FDMDV2_PLOT_SPECTRUM__
+#define __FDMDV2_PLOT_SPECTRUM__
+
+#include "fdmdv2_plot.h"
+#include "fdmdv2_defines.h"
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class Waterfall
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class PlotSpectrum : public PlotPanel
+{
+    public:
+    PlotSpectrum(wxFrame* parent, float *magdB, int n_magdB, 
+                 float min_mag_db=MIN_MAG_DB, float max_mag_db=MAX_MAG_DB, bool clickTune=true);
+        ~PlotSpectrum();
+        void setRxFreq(float rxFreq) { m_rxFreq = rxFreq; }
+        void setFreqScale(int n_magdB) { m_n_magdB = n_magdB; }
+
+    protected:
+        void        OnPaint(wxPaintEvent& event);
+        void        OnSize(wxSizeEvent& event);
+        void        OnShow(wxShowEvent& event);
+        void        drawGraticule(wxAutoBufferedPaintDC& dc);
+        void        draw(wxAutoBufferedPaintDC& dc);
+        void        OnMouseLeftDoubleClick(wxMouseEvent& event);
+
+   private:
+        float       m_rxFreq;
+        float       m_max_mag_db;
+        float       m_min_mag_db;
+        float      *m_magdB;
+        int         m_n_magdB;  
+        bool        m_clickTune;
+
+        DECLARE_EVENT_TABLE()
+};
+
+#endif //__FDMDV2_PLOT_SPECTRUM__
diff --git a/src/fdmdv2_plot_waterfall.cpp b/src/fdmdv2_plot_waterfall.cpp
new file mode 100644
index 0000000..cdbe01e
--- /dev/null
+++ b/src/fdmdv2_plot_waterfall.cpp
@@ -0,0 +1,483 @@
+//==========================================================================
+// Name:            fdmdv2_plot_waterfall.cpp
+// Purpose:         Implements a waterfall plot derivative of fdmdv2_plot.
+// Created:         June 22, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <string.h>
+#include "wx/wx.h"
+#include "fdmdv2_main.h"
+
+extern float g_avmag[];                 // av mag spec passed in to draw() 
+void fdmdv2_clickTune(float frequency); // callback to pass new click freq
+
+BEGIN_EVENT_TABLE(PlotWaterfall, PlotPanel)
+    EVT_PAINT           (PlotWaterfall::OnPaint)
+    EVT_MOTION          (PlotWaterfall::OnMouseMove)
+    EVT_LEFT_DCLICK     (PlotWaterfall::OnMouseLeftDoubleClick)
+    EVT_RIGHT_DOWN      (PlotWaterfall::OnMouseRightDown)
+    EVT_LEFT_UP         (PlotWaterfall::OnMouseLeftUp)
+    EVT_MOUSEWHEEL      (PlotWaterfall::OnMouseWheelMoved)
+    EVT_SIZE            (PlotWaterfall::OnSize)
+    EVT_SHOW            (PlotWaterfall::OnShow)
+END_EVENT_TABLE()
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class WaterfallPlot
+//
+// @class   WaterfallPlot
+// @author  David Witten
+// @date    $(Date)
+// @file    $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+PlotWaterfall::PlotWaterfall(wxFrame* parent, bool graticule, int colour): PlotPanel(parent)
+{
+
+    for(int i = 0; i < 255; i++)
+    {
+        m_heatmap_lut[i] = heatmap((float)i, 0.0, 255.0);
+    }
+    m_graticule     = graticule;
+    m_colour        = colour;
+    m_Bufsz         = GetMaxClientSize();
+    m_newdata       = false;
+    m_firstPass     = true;
+    m_line_color    = 0;
+    m_modem_stats_max_f_hz = MODEM_STATS_MAX_F_HZ;
+
+    SetLabelSize(10.0);
+
+    m_pBmp = NULL;
+    m_max_mag = MAX_MAG_DB;
+    m_min_mag = MIN_MAG_DB;
+}
+
+// When the window size gets set we can work outthe size of the window
+// we plot in and allocate a bit map of the correct size
+void PlotWaterfall::OnSize(wxSizeEvent& event) 
+{
+    // resize bit map
+
+    delete m_pBmp;
+    
+    m_rCtrl  = GetClientRect();
+
+    // m_rGrid is coords of inner window we actually plot to.  We deflate it a bit
+    // to leave room for axis labels.
+
+    m_rGrid  = m_rCtrl;
+    m_rGrid = m_rGrid.Deflate(PLOT_BORDER + (XLEFT_OFFSET/2), (PLOT_BORDER + (YBOTTOM_OFFSET/2)));
+
+    // we want a bit map the size of m_rGrid
+
+    m_pBmp = new wxBitmap(m_rGrid.GetWidth(), m_rGrid.GetHeight(), 24);
+
+    m_dT = DT;
+}
+
+//----------------------------------------------------------------
+// paintEvent()
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+// Called by the system of by wxWidgets when the panel needs
+// to be redrawn. You can also trigger this call by calling
+// Refresh()/Update().
+//----------------------------------------------------------------
+void PlotWaterfall::OnPaint(wxPaintEvent & evt)
+{
+    wxAutoBufferedPaintDC dc(this);
+    draw(dc);
+}
+
+//----------------------------------------------------------------
+// OnShow()
+//----------------------------------------------------------------
+void PlotWaterfall::OnShow(wxShowEvent& event)
+{
+}
+
+//----------------------------------------------------------------
+// ~PlotWaterfall()
+//----------------------------------------------------------------
+PlotWaterfall::~PlotWaterfall()
+{
+}
+
+//----------------------------------------------------------------
+// heatmap()
+// map val to a rgb colour
+// from http://eddiema.ca/2011/01/21/c-sharp-heatmaps/
+//----------------------------------------------------------------
+unsigned PlotWaterfall::heatmap(float val, float min, float max)
+{
+    unsigned r = 0;
+    unsigned g = 0;
+    unsigned b = 0;
+
+    val = (val - min) / (max - min);
+    if(val <= 0.2)
+    {
+        b = (unsigned)((val / 0.2) * 255);
+    }
+    else if(val >  0.2 &&  val <= 0.7)
+    {
+        b = (unsigned)((1.0 - ((val - 0.2) / 0.5)) * 255);
+    }
+    if(val >= 0.2 &&  val <= 0.6)
+    {
+        g = (unsigned)(((val - 0.2) / 0.4) * 255);
+    }
+    else if(val >  0.6 &&  val <= 0.9)
+    {
+        g = (unsigned)((1.0 - ((val - 0.6) / 0.3)) * 255);
+    }
+    if(val >= 0.5)
+    {
+        r = (unsigned)(((val - 0.5) / 0.5) * 255);
+    }
+    //printf("%f %x %x %x\n", val, r, g, b);
+    return  (b << 16) + (g << 8) + r;
+}
+
+bool PlotWaterfall::checkDT(void)
+{
+    // Check dY is > 1 pixel before proceeding. For small screens
+    // and large WATERFALL_SECS_Y we might have less than one
+    // block per pixel.  In this case increase m_dT and perform draw
+    // less often
+
+    float px_per_sec = (float)m_rGrid.GetHeight() / WATERFALL_SECS_Y;
+    float dy = m_dT * px_per_sec;
+    
+    if (dy < 1.0) {
+        m_dT += DT;
+        return false;
+    }
+    else
+        return true;
+}
+
+//----------------------------------------------------------------
+// draw()
+//----------------------------------------------------------------
+void PlotWaterfall::draw(wxAutoBufferedPaintDC& dc)
+{
+
+    m_rCtrl  = GetClientRect();
+
+    // m_rGrid is coords of inner window we actually plot to.  We deflate it a bit
+    // to leave room for axis labels.
+
+    m_rGrid = m_rCtrl;
+    m_rGrid = m_rGrid.Deflate(PLOT_BORDER + (XLEFT_OFFSET/2), (PLOT_BORDER + (YBOTTOM_OFFSET/2)));
+
+    if (m_pBmp == NULL) 
+    {
+        // we want a bit map the size of m_rGrid
+        m_pBmp = new wxBitmap(m_rGrid.GetWidth(), m_rGrid.GetHeight(), 24);
+    }
+
+    dc.Clear();
+
+    if(m_newdata)
+    {
+        m_newdata = false;
+        plotPixelData();
+        dc.DrawBitmap(*m_pBmp, PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER);
+        m_dT = DT;
+    }
+    else 
+    {
+
+        // no data to plot so just erase to black.  Blue looks nicer
+        // but is same colour as low amplitude signal
+
+        // Bug on Linux: When Stop is pressed this code doesn't erase
+        // the lower 25% of the Waterfall Window
+
+        m_rPlot = wxRect(PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER, m_rGrid.GetWidth(), m_rGrid.GetHeight());
+        wxBrush ltGraphBkgBrush = wxBrush(BLACK_COLOR);
+        dc.SetBrush(ltGraphBkgBrush);
+        dc.SetPen(wxPen(BLACK_COLOR, 0));
+        dc.DrawRectangle(m_rPlot);
+    }
+    drawGraticule(dc);
+}
+
+//-------------------------------------------------------------------------
+// drawGraticule()
+//-------------------------------------------------------------------------
+void PlotWaterfall::drawGraticule(wxAutoBufferedPaintDC& dc)
+{
+    int      x, y, text_w, text_h;
+    char     buf[15];
+    wxString s;
+    float    f, time, freq_hz_to_px, time_s_to_py;
+
+    wxBrush ltGraphBkgBrush;
+    ltGraphBkgBrush.SetStyle(wxBRUSHSTYLE_TRANSPARENT);
+    ltGraphBkgBrush.SetColour(*wxBLACK);
+    dc.SetBrush(ltGraphBkgBrush);
+    dc.SetPen(wxPen(BLACK_COLOR, 1));
+
+    freq_hz_to_px = (float)m_rGrid.GetWidth()/(MAX_F_HZ-MIN_F_HZ);
+    time_s_to_py = (float)m_rGrid.GetHeight()/WATERFALL_SECS_Y;
+
+    // upper LH coords of plot area are (PLOT_BORDER + XLEFT_OFFSET, PLOT_BORDER)
+    // lower RH coords of plot area are (PLOT_BORDER + XLEFT_OFFSET + m_rGrid.GetWidth(), 
+    //                                   PLOT_BORDER + m_rGrid.GetHeight())
+
+    // Check if small screen size means text will overlap
+
+    int textXStep = STEP_F_HZ*freq_hz_to_px;
+    int textYStep = WATERFALL_SECS_STEP*time_s_to_py;
+    sprintf(buf, "%4.0fHz", (float)MAX_F_HZ - STEP_F_HZ);
+    GetTextExtent(buf, &text_w, &text_h);
+    int overlappedText = (text_w > textXStep) || (text_h > textYStep);
+
+    // Major Vertical gridlines and legend
+    //dc.SetPen(m_penShortDash);
+    for(f=STEP_F_HZ; f<MAX_F_HZ; f+=STEP_F_HZ) 
+    {
+        x = f*freq_hz_to_px;
+        x += PLOT_BORDER + XLEFT_OFFSET;
+
+        if (m_graticule)
+            dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, PLOT_BORDER);
+        else
+            dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET);
+            
+        sprintf(buf, "%4.0fHz", f);
+        GetTextExtent(buf, &text_w, &text_h);
+        if (!overlappedText)
+            dc.DrawText(buf, x - text_w/2, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET);
+    }
+
+    for(f=STEP_MINOR_F_HZ; f<MAX_F_HZ; f+=STEP_MINOR_F_HZ) 
+    {
+        x = f*freq_hz_to_px;
+        x += PLOT_BORDER + XLEFT_OFFSET;
+        dc.DrawLine(x, m_rGrid.GetHeight() + PLOT_BORDER, x, m_rGrid.GetHeight() + PLOT_BORDER + YBOTTOM_TEXT_OFFSET-5);
+    }
+    
+    // Horizontal gridlines
+    dc.SetPen(m_penDotDash);
+    for(time=0; time<=WATERFALL_SECS_Y; time+=WATERFALL_SECS_STEP) {
+       y = m_rGrid.GetHeight() - time*time_s_to_py;
+       y += PLOT_BORDER;
+
+        if (m_graticule)
+            dc.DrawLine(PLOT_BORDER + XLEFT_OFFSET, y, 
+                        (m_rGrid.GetWidth() + PLOT_BORDER + XLEFT_OFFSET), y);
+        sprintf(buf, "%3.0fs", time);
+	GetTextExtent(buf, &text_w, &text_h);
+        if (!overlappedText)
+            dc.DrawText(buf, PLOT_BORDER + XLEFT_OFFSET - text_w - XLEFT_TEXT_OFFSET, y-text_h/2);
+   }
+
+    // red rx tuning line
+    dc.SetPen(wxPen(RED_COLOR, 2));
+    x = m_rxFreq*freq_hz_to_px;
+    x += PLOT_BORDER + XLEFT_OFFSET;
+    //printf("m_rxFreq %f x %d\n", m_rxFreq, x);
+    dc.DrawLine(x, m_rGrid.GetHeight()+ PLOT_BORDER, x, m_rCtrl.GetHeight());
+    
+}
+
+//-------------------------------------------------------------------------
+// plotPixelData()
+//-------------------------------------------------------------------------
+void PlotWaterfall::plotPixelData()
+{
+    float       spec_index_per_px;
+    float       intensity_per_dB;
+    float       px_per_sec;
+    int         index;
+    float       dy;
+    int         dy_blocks;
+    int         b;
+    int         px;
+    int         py;
+    int         intensity;
+
+    /*
+      Design Notes:
+
+      The height in pixels represents WATERFALL_SECS_Y of data.  Every DT
+      seconds we get a vector of MODEM_STATS_NSPEC spectrum samples which we use
+      to update the last row.  The height of each row is dy pixels, which
+      maps to DT seconds.  We call each dy high rectangle of pixels a
+      block.
+
+    */
+
+    // determine dy, the height of one "block"
+    px_per_sec = (float)m_rGrid.GetHeight() / WATERFALL_SECS_Y;
+    dy = m_dT * px_per_sec;
+
+    // number of dy high blocks in spectrogram
+    dy_blocks = m_rGrid.GetHeight()/ dy;
+
+    // update min and max amplitude estimates
+    float max_mag = MIN_MAG_DB;
+
+    int min_fft_bin=((float)200/m_modem_stats_max_f_hz)*MODEM_STATS_NSPEC;
+    int max_fft_bin=((float)2800/m_modem_stats_max_f_hz)*MODEM_STATS_NSPEC;
+
+    for(int i=min_fft_bin; i<max_fft_bin; i++) 
+    {
+        if (g_avmag[i] > max_mag)
+        {
+            max_mag = g_avmag[i];
+        }
+    }
+
+    m_max_mag = BETA*m_max_mag + (1 - BETA)*max_mag;
+    m_min_mag = max_mag - 20.0;
+    //printf("max_mag: %f m_max_mag: %f\n", max_mag, m_max_mag);
+    //intensity_per_dB  = (float)256 /(MAX_MAG_DB - MIN_MAG_DB);
+    intensity_per_dB  = (float)256 /(m_max_mag - m_min_mag);
+    spec_index_per_px = ((float)(MAX_F_HZ)/(float)m_modem_stats_max_f_hz)*(float)MODEM_STATS_NSPEC / (float) m_rGrid.GetWidth();
+
+    /*
+    printf("h %d w %d px_per_sec %d dy %d dy_blocks %d spec_index_per_px: %f\n", 
+       m_rGrid.GetHeight(), m_rGrid.GetWidth(), px_per_sec, 
+       dy, dy_blocks, spec_index_per_px);
+    */
+
+    // Shift previous bit map up one row of blocks ----------------------------
+    wxNativePixelData data(*m_pBmp);
+    wxNativePixelData::Iterator bitMapStart(data);
+    wxNativePixelData::Iterator p = bitMapStart;
+
+    for(b = 0; b < dy_blocks - 1; b++) 
+    {
+        wxNativePixelData::Iterator psrc = bitMapStart;
+        wxNativePixelData::Iterator pdest = bitMapStart;
+        pdest.OffsetY(data, dy * b);
+        psrc.OffsetY(data, dy * (b+1));
+
+        // copy one line of blocks
+
+        for(py = 0; py < dy; py++) 
+        {
+            wxNativePixelData::Iterator pdestRowStart = pdest;
+            wxNativePixelData::Iterator psrcRowStart = psrc;
+
+            for(px = 0; px < m_rGrid.GetWidth(); px++) 
+            {
+                pdest.Red() = psrc.Red();
+                pdest.Green() = psrc.Green();
+                pdest.Blue() = psrc.Blue();
+                pdest++;
+                psrc++;
+            }
+            pdest = pdestRowStart;
+            pdest.OffsetY(data, 1);
+            psrc = psrcRowStart;
+            psrc.OffsetY(data, 1);	    
+        }
+    }
+
+    // Draw last line of blocks using latest amplitude data ------------------
+    p = bitMapStart;
+    p.OffsetY(data, dy *(dy_blocks - 1));
+    for(py = 0; py < dy; py++)
+    {
+        wxNativePixelData::Iterator rowStart = p;
+
+        for(px = 0; px < m_rGrid.GetWidth(); px++)
+        {
+            index = px * spec_index_per_px;
+            assert(index < MODEM_STATS_NSPEC);
+
+            intensity = intensity_per_dB * (g_avmag[index] - m_min_mag);
+            if(intensity > 255) intensity = 255;
+            if (intensity < 0) intensity = 0;
+            //printf("%d %f %d \n", index, g_avmag[index], intensity);
+
+            switch (m_colour) {
+            case 0:
+                p.Red() = m_heatmap_lut[intensity] & 0xff;
+                p.Green() = (m_heatmap_lut[intensity] >> 8) & 0xff;
+                p.Blue() = (m_heatmap_lut[intensity] >> 16) & 0xff;
+                break;
+            case 1:
+                p.Red() = intensity;
+                p.Green() = intensity;
+                p.Blue() = intensity;       
+                break;
+            case 2:
+                p.Red() = intensity;
+                p.Green() = intensity;
+                if (intensity < 127)
+                    p.Blue() = intensity*2;
+                else
+                    p.Blue() = 255;
+                        
+                break;
+            }
+            ++p;
+        }
+        p = rowStart;
+        p.OffsetY(data, 1);
+    }
+
+}
+
+//-------------------------------------------------------------------------
+// OnMouseLeftDown()
+//-------------------------------------------------------------------------
+void PlotWaterfall::OnMouseLeftDoubleClick(wxMouseEvent& event)
+{
+    m_mouseDown = true;
+    wxClientDC dc(this);
+
+    wxPoint pt(event.GetLogicalPosition(dc));
+
+    // map x coord to edges of actual plot
+    pt.x -= PLOT_BORDER + XLEFT_OFFSET;
+    pt.y -= PLOT_BORDER;
+
+    // valid click if inside of plot
+    if ((pt.x >= 0) && (pt.x <= m_rGrid.GetWidth()) && (pt.y >=0)) 
+    {
+        float freq_hz_to_px = (float)m_rGrid.GetWidth()/(MAX_F_HZ-MIN_F_HZ);
+        float clickFreq = (float)pt.x/freq_hz_to_px;
+
+        // communicate back to other threads
+        fdmdv2_clickTune(clickFreq);
+    }
+}
+
+//-------------------------------------------------------------------------
+// OnMouseRightDown()
+//-------------------------------------------------------------------------
+void PlotWaterfall::OnMouseRightDown(wxMouseEvent& event)
+{
+    m_colour++;
+    if (m_colour == 3)
+        m_colour = 0;
+}
+
diff --git a/src/fdmdv2_plot_waterfall.h b/src/fdmdv2_plot_waterfall.h
new file mode 100644
index 0000000..f4896c6
--- /dev/null
+++ b/src/fdmdv2_plot_waterfall.h
@@ -0,0 +1,73 @@
+//==========================================================================
+// Name:            fdmdv2_plot_waterfall.h
+// Purpose:         Defines a waterfall plot derivative of fdmdv2_plot.
+// Created:         June 22, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __FDMDV2_PLOT_WATERFALL__
+#define __FDMDV2_PLOT_WATERFALL__
+
+#include "fdmdv2_plot.h"
+#include "fdmdv2_defines.h"
+
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+// Class PlotWaterfall
+//
+// @class $(Name)
+// @author $(User)
+// @date $(Date)
+// @file $(CurrentFileName).$(CurrentFileExt)
+// @brief
+//
+//-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=
+class PlotWaterfall : public PlotPanel
+{
+    public:
+    PlotWaterfall(wxFrame* parent, bool graticule, int colour);
+        ~PlotWaterfall();
+        bool checkDT(void);
+        void setGreyscale(bool greyscale) { m_greyscale = greyscale; }
+        void setRxFreq(float rxFreq) { m_rxFreq = rxFreq; }
+        void setFs(int fs) { m_modem_stats_max_f_hz = fs/2; }
+
+    protected:
+        unsigned    m_heatmap_lut[256];
+
+        unsigned    heatmap(float val, float min, float max);
+
+        void        OnPaint(wxPaintEvent & evt);
+        void        OnSize(wxSizeEvent& event);
+        void        OnShow(wxShowEvent& event);
+        void        drawGraticule(wxAutoBufferedPaintDC&  dc);
+        void        draw(wxAutoBufferedPaintDC& dc);
+        void        plotPixelData();
+        void        OnMouseLeftDoubleClick(wxMouseEvent& event);
+        void        OnMouseRightDown(wxMouseEvent& event);
+
+    private:
+        float       m_dT;
+        float       m_rxFreq;
+        bool        m_graticule;
+        float       m_min_mag;
+        float       m_max_mag;
+        int         m_colour;
+        int         m_modem_stats_max_f_hz;
+
+        DECLARE_EVENT_TABLE()
+};
+
+#endif //__FDMDV2_PLOT_WATERFALL__
diff --git a/src/freedv.icns b/src/freedv.icns
new file mode 100644
index 0000000..5190e79
Binary files /dev/null and b/src/freedv.icns differ
diff --git a/src/hamlib.cpp b/src/hamlib.cpp
new file mode 100644
index 0000000..ff80b24
--- /dev/null
+++ b/src/hamlib.cpp
@@ -0,0 +1,160 @@
+//==========================================================================
+// Name:            hamlib.cpp
+//
+// Purpose:         Hamlib integration for FreeDV
+// Created:         May 2013
+// Authors:         Joel Stanley
+//
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include <hamlib.h>
+
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+typedef std::vector<const struct rig_caps *> riglist_t;
+
+static bool rig_cmp(const struct rig_caps *rig1, const struct rig_caps *rig2);
+static int build_list(const struct rig_caps *rig, rig_ptr_t);
+
+Hamlib::Hamlib() : m_rig(NULL) {
+    /* Stop hamlib from spewing info to stderr. */
+    rig_set_debug(RIG_DEBUG_NONE);
+
+    /* Create sorted list of rigs. */
+    rig_load_all_backends();
+    rig_list_foreach(build_list, &m_rigList);
+    sort(m_rigList.begin(), m_rigList.end(), rig_cmp);
+
+    /* Reset debug output. */
+    rig_set_debug(RIG_DEBUG_VERBOSE);
+
+    m_rig = NULL;
+}
+
+Hamlib::~Hamlib() {
+	if(m_rig)
+		close();
+}
+
+static int build_list(const struct rig_caps *rig, rig_ptr_t rigList) {
+    ((riglist_t *)rigList)->push_back(rig); 
+    return 1;
+}
+
+static bool rig_cmp(const struct rig_caps *rig1, const struct rig_caps *rig2) {
+    /* Compare manufacturer. */
+    int r = strcasecmp(rig1->mfg_name, rig2->mfg_name);
+    if (r != 0)
+        return r < 0;
+
+    /* Compare model. */
+    r = strcasecmp(rig1->model_name, rig2->model_name);
+    if (r != 0)
+        return r < 0;
+
+    /* Compare rig ID. */
+    return rig1->rig_model < rig2->rig_model;
+}
+
+void Hamlib::populateComboBox(wxComboBox *cb) {
+
+    riglist_t::const_iterator rig = m_rigList.begin();
+    for (; rig !=m_rigList.end(); rig++) {
+        char name[128];
+        snprintf(name, 128, "%s %s", (*rig)->mfg_name, (*rig)->model_name); 
+        cb->Append(name);
+    }
+}
+
+bool Hamlib::connect(unsigned int rig_index, const char *serial_port, const int serial_rate) {
+    /* Look up model from index. */
+    if (rig_index >= m_rigList.size()) {
+        return false;
+    }
+    fprintf(stderr, "rig: %s %s (%d)\n", m_rigList[rig_index]->mfg_name,
+            m_rigList[rig_index]->model_name, m_rigList[rig_index]->rig_model);
+
+	if(m_rig) {
+		printf("Closing old hamlib instance!\n");
+		close();
+	}
+
+    /* Initialise, configure and open. */
+
+    m_rig = rig_init(m_rigList[rig_index]->rig_model);
+
+    if (!m_rig)
+        return false;
+
+    /* TODO we may also need civaddr for Icom */
+
+    strncpy(m_rig->state.rigport.pathname, serial_port, FILPATHLEN - 1);
+    if (serial_rate) {
+        m_rig->state.rigport.parm.serial.rate = serial_rate;
+    }
+    fprintf(stderr, "hamlib: setting serial rate: %d\n", m_rig->state.rigport.parm.serial.rate);
+
+    if (rig_open(m_rig) == RIG_OK) {
+        return true;
+    }
+
+    return false;
+}
+
+int Hamlib::get_serial_rate(void) {
+    return m_rig->state.rigport.parm.serial.rate;
+}
+
+int Hamlib::get_data_bits(void) {
+    return m_rig->state.rigport.parm.serial.data_bits;
+}
+
+int Hamlib::get_stop_bits(void) {
+    return m_rig->state.rigport.parm.serial.stop_bits;
+}
+
+bool Hamlib::ptt(bool press, wxString &hamlibError) {
+    fprintf(stderr,"Hamlib::ptt: %d\n", press);
+    hamlibError = "";
+
+    if(!m_rig)
+        return false;
+
+    /* TODO(Joel): make ON_DATA and ON configurable. */
+
+    ptt_t on = press ? RIG_PTT_ON : RIG_PTT_OFF;
+
+    /* TODO(Joel): what should the VFO option be? */
+
+    int retcode = rig_set_ptt(m_rig, RIG_VFO_CURR, on);
+    fprintf(stderr,"Hamlib::ptt: rig_set_ptt returned: %d\n", retcode);
+    if (retcode != RIG_OK ) {
+        fprintf(stderr, "rig_set_ptt: error = %s \n", rigerror(retcode));
+        hamlibError = rigerror(retcode);
+    }
+
+    return retcode == RIG_OK;
+}
+
+void Hamlib::close(void) {
+    if(m_rig) {
+        rig_close(m_rig);
+        rig_cleanup(m_rig);
+        m_rig = NULL;
+    }
+}
diff --git a/src/hamlib.h b/src/hamlib.h
new file mode 100644
index 0000000..65af2d4
--- /dev/null
+++ b/src/hamlib.h
@@ -0,0 +1,31 @@
+#ifndef HAMLIB_H
+#define HAMLIB_H
+
+extern "C" {
+#include <hamlib/rig.h>
+}
+#include <wx/combobox.h>
+#include <vector>
+
+class Hamlib {
+
+    public:
+        Hamlib();
+        ~Hamlib();
+        void populateComboBox(wxComboBox *cb);
+        bool connect(unsigned int rig_index, const char *serial_port, const int serial_rate);
+        bool ptt(bool press, wxString &hamlibError);
+        void close(void);
+        int get_serial_rate(void);
+        int get_data_bits(void);
+        int get_stop_bits(void);
+
+        typedef std::vector<const struct rig_caps *> riglist_t;
+
+    private:
+        RIG *m_rig;
+        /* Sorted list of rigs. */
+        riglist_t m_rigList;
+};
+
+#endif /*HAMLIB_H*/
diff --git a/src/info.plist b/src/info.plist
new file mode 100644
index 0000000..8f0d4c3
--- /dev/null
+++ b/src/info.plist
@@ -0,0 +1,104 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>freedv</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>org.freedv.freedv</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>FreeDV</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>10.5</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2012 FreeDV. All rights reserved.</string>
+	<!--<key>NSMainNibFile</key>
+	<string>MainMenu</string>-->
+	<key>CFBundleIconFile</key>
+	<string>freedv</string>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>freedv</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>org.freedv.freedv</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>FreeDV</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>10.5</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2012 FreeDV. All rights reserved.</string>
+	<!--<key>NSMainNibFile</key>
+	<string>MainMenu</string>-->
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>freedv</string>
+	<key>CFBundleIconFile</key>
+	<string></string>
+	<key>CFBundleIdentifier</key>
+	<string>org.freedv.freedv</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>FreeDV</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSMinimumSystemVersion</key>
+	<string>10.5</string>
+	<key>NSHumanReadableCopyright</key>
+	<string>Copyright © 2012 FreeDV. All rights reserved.</string>
+	<!--<key>NSMainNibFile</key>
+	<string>MainMenu</string>-->
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+</dict>
+</plist>
\ No newline at end of file
diff --git a/src/serialport.cpp b/src/serialport.cpp
new file mode 100644
index 0000000..59dd0c9
--- /dev/null
+++ b/src/serialport.cpp
@@ -0,0 +1,234 @@
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include "serialport.h"
+
+Serialport::Serialport() {
+    com_handle = COM_HANDLE_INVALID;
+}
+
+Serialport::~Serialport() {
+    if (isopen()) {
+        closeport();
+    }
+}
+
+// returns true if comm port opened OK, false if there was a problem
+
+bool Serialport::openport(const char name[], bool useRTS, bool RTSPos, bool useDTR, bool DTRPos)
+{
+    if (com_handle != COM_HANDLE_INVALID) {
+        closeport();
+    }
+
+    m_useRTS = useRTS;
+    m_RTSPos = RTSPos;
+    m_useDTR = useDTR;
+    m_DTRPos = DTRPos;
+
+#ifdef _WIN32
+	{
+		COMMCONFIG CC;
+		DWORD CCsize=sizeof(CC);
+		COMMTIMEOUTS timeouts;
+		DCB	dcb;
+
+		if(GetDefaultCommConfigA(name, &CC, &CCsize)) {
+			CC.dcb.fOutxCtsFlow		= FALSE;
+			CC.dcb.fOutxDsrFlow		= FALSE;
+			CC.dcb.fDtrControl		= DTR_CONTROL_DISABLE;
+			CC.dcb.fDsrSensitivity	= FALSE;
+			CC.dcb.fRtsControl		= RTS_CONTROL_DISABLE;
+			SetDefaultCommConfigA(name, &CC, CCsize);
+		}
+
+		if((com_handle=CreateFileA(name
+			,GENERIC_READ|GENERIC_WRITE 	/* Access */
+			,0								/* Share mode */
+			,NULL							/* Security attributes */
+			,OPEN_EXISTING					/* Create access */
+			,FILE_ATTRIBUTE_NORMAL			/* File attributes */
+			,NULL							/* Template */
+			))==INVALID_HANDLE_VALUE)
+			return false;
+
+		if(GetCommTimeouts(com_handle, &timeouts)) {
+			timeouts.ReadIntervalTimeout=MAXDWORD;
+			timeouts.ReadTotalTimeoutMultiplier=0;
+			timeouts.ReadTotalTimeoutConstant=0;		// No-wait read timeout
+			timeouts.WriteTotalTimeoutMultiplier=0;
+			timeouts.WriteTotalTimeoutConstant=5000;	// 5 seconds
+			SetCommTimeouts(com_handle,&timeouts);
+		}
+
+		/* Force N-8-1 mode: */
+		if(GetCommState(com_handle, &dcb)==TRUE) {
+			dcb.ByteSize		= 8;
+			dcb.Parity			= NOPARITY;
+			dcb.StopBits		= ONESTOPBIT;
+			dcb.DCBlength		= sizeof(DCB);
+			dcb.fBinary			= TRUE;
+			dcb.fOutxCtsFlow	= FALSE;
+			dcb.fOutxDsrFlow	= FALSE;
+			dcb.fDtrControl		= DTR_CONTROL_DISABLE;
+			dcb.fDsrSensitivity	= FALSE;
+			dcb.fTXContinueOnXoff= TRUE;
+			dcb.fOutX			= FALSE;
+			dcb.fInX			= FALSE;
+			dcb.fRtsControl		= RTS_CONTROL_DISABLE;
+			dcb.fAbortOnError	= FALSE;
+			SetCommState(com_handle, &dcb);
+		}
+	}
+#else
+	{
+		struct termios t;
+
+		if((com_handle=open(name, O_NONBLOCK|O_RDWR))== COM_HANDLE_INVALID)
+			return false;
+
+		if(tcgetattr(com_handle, &t)==-1) {
+			close(com_handle);
+			com_handle = COM_HANDLE_INVALID;
+			return false;
+		}
+
+		t.c_iflag = (
+					  IGNBRK   /* ignore BREAK condition */
+					| IGNPAR   /* ignore (discard) parity errors */
+					);
+		t.c_oflag = 0;	/* No output processing */
+		t.c_cflag = (
+					  CS8         /* 8 bits */
+					| CREAD       /* enable receiver */
+
+		/*
+		Fun snippet from the FreeBSD manpage:
+
+			 If CREAD is set, the receiver is enabled.  Otherwise, no character is
+			 received.  Not all hardware supports this bit.  In fact, this flag is
+			 pretty silly and if it were not part of the termios specification it
+			 would be omitted.
+		*/
+					| CLOCAL      /* ignore modem status lines */
+					);
+
+		t.c_lflag = 0;	/* No local modes */
+		if(tcsetattr(com_handle, TCSANOW, &t)==-1) {
+			close(com_handle);
+			com_handle = COM_HANDLE_INVALID;
+			return false;
+		}
+		
+	}
+#endif
+	return true;
+}
+
+
+// fixme: this takes about one second to close under Linux
+
+void Serialport::closeport()
+{
+#ifdef _WIN32
+	CloseHandle(com_handle);
+#else
+	close(com_handle);
+#endif
+        com_handle = COM_HANDLE_INVALID;
+}
+
+//----------------------------------------------------------------
+// (raise|lower)(RTS|DTR)()
+//
+// Raises/lowers the specified signal
+//----------------------------------------------------------------
+
+void Serialport::raiseDTR(void)
+{
+	if(com_handle == COM_HANDLE_INVALID)
+		return;
+#ifdef _WIN32
+	EscapeCommFunction(com_handle, SETDTR);
+#else
+	{	// For C89 happiness
+		int flags = TIOCM_DTR;
+		ioctl(com_handle, TIOCMBIS, &flags);
+	}
+#endif
+}
+
+void Serialport::raiseRTS(void)
+{
+	if(com_handle == COM_HANDLE_INVALID)
+		return;
+#ifdef _WIN32
+	EscapeCommFunction(com_handle, SETRTS);
+#else
+	{	// For C89 happiness
+		int flags = TIOCM_RTS;
+		ioctl(com_handle, TIOCMBIS, &flags);
+	}
+#endif
+}
+
+void Serialport::lowerDTR(void)
+{
+	if(com_handle == COM_HANDLE_INVALID)
+		return;
+#ifdef _WIN32
+	EscapeCommFunction(com_handle, CLRDTR);
+#else
+	{	// For C89 happiness
+		int flags = TIOCM_DTR;
+		ioctl(com_handle, TIOCMBIC, &flags);
+	}
+#endif
+}
+
+void Serialport::lowerRTS(void)
+{
+	if(com_handle == COM_HANDLE_INVALID)
+		return;
+#ifdef _WIN32
+	EscapeCommFunction(com_handle, CLRRTS);
+#else
+	{	// For C89 happiness
+		int flags = TIOCM_RTS;
+		ioctl(com_handle, TIOCMBIC, &flags);
+	}
+#endif
+}
+
+void Serialport::ptt(bool tx) {
+
+   /*  Truth table:
+
+          g_tx   RTSPos   RTS
+          -------------------
+          0      1        0
+          1      1        1
+          0      0        1
+          1      0        0
+
+          exclusive NOR
+    */
+
+    if (com_handle != COM_HANDLE_INVALID) {
+        if (m_useRTS) {
+            //fprintf(stderr, "g_tx: %d m_boolRTSPos: %d serialLine: %d\n", g_tx, wxGetApp().m_boolRTSPos, g_tx == wxGetApp().m_boolRTSPos);
+            if (tx == m_RTSPos)
+                raiseRTS();
+            else
+                lowerRTS();
+        }
+        if (m_useDTR) {
+            //fprintf(stderr, "g_tx: %d m_boolDTRPos: %d serialLine: %d\n", g_tx, wxGetApp().m_boolDTRPos, g_tx == wxGetApp().m_boolDTRPos);
+            if (tx == m_DTRPos)
+                raiseDTR();
+            else
+                lowerDTR();
+        }
+ 
+    }
+}
diff --git a/src/serialport.h b/src/serialport.h
new file mode 100644
index 0000000..e5db10b
--- /dev/null
+++ b/src/serialport.h
@@ -0,0 +1,42 @@
+#ifndef SERIALPORT_H
+#define SERIALPORT_H
+
+#ifdef _WIN32
+#include <windows.h>
+#else
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <dlfcn.h>
+#endif
+
+// Serial ports called com port for historic reasons, especially on Windows machines 
+
+#ifdef _WIN32
+#define COM_HANDLE_INVALID			INVALID_HANDLE_VALUE
+typedef HANDLE      com_handle_t;
+#else
+#define COM_HANDLE_INVALID			-1
+typedef int         com_handle_t;
+#endif
+
+class Serialport {
+
+    public:
+        Serialport();
+        ~Serialport();
+        bool openport(const char port[], bool useRTS, bool RTSPos, bool useDTR, bool DTRPos);
+        bool isopen() {return (com_handle != COM_HANDLE_INVALID);}
+        void closeport();
+        void ptt(bool tx);
+
+    private:
+        com_handle_t  com_handle;
+        bool          m_useRTS, m_RTSPos, m_useDTR, m_DTRPos;
+
+        void raiseDTR(void);
+        void lowerDTR(void);
+        void raiseRTS(void);
+        void lowerRTS(void);
+};
+
+#endif /* SERIALPORT_H */
diff --git a/src/sox/band.h b/src/sox/band.h
new file mode 100644
index 0000000..5398ff4
--- /dev/null
+++ b/src/sox/band.h
@@ -0,0 +1,47 @@
+/* libSoX Bandpass effect file.     July 5, 1991
+ * Copyright 1991 Lance Norskog And Sundry Contributors
+ *
+ * This source code is freely redistributable and may be used for
+ * any purpose.  This copyright notice must be maintained.
+ * Lance Norskog And Sundry Contributors are not responsible for
+ * the consequences of using this software.
+ *
+ * Algorithm:  2nd order recursive filter.
+ * Formula stolen from MUSIC56K, a toolkit of 56000 assembler stuff.
+ * Quote:
+ *   This is a 2nd order recursive band pass filter of the form.
+ *   y(n)= a * x(n) - b * y(n-1) - c * y(n-2)
+ *   where :
+ *        x(n) = "IN"
+ *        "OUT" = y(n)
+ *        c = EXP(-2*pi*cBW/S_RATE)
+ *        b = -4*c/(1+c)*COS(2*pi*cCF/S_RATE)
+ *   if cSCL=2 (i.e. noise input)
+ *        a = SQT(((1+c)*(1+c)-b*b)*(1-c)/(1+c))
+ *   else
+ *        a = SQT(1-b*b/(4*c))*(1-c)
+ *   endif
+ *   note :     cCF is the center frequency in Hertz
+ *        cBW is the band width in Hertz
+ *        cSCL is a scale factor, use 1 for pitched sounds
+ *   use 2 for noise.
+ *
+ *
+ * July 1, 1999 - Jan Paul Schmidt <jps at fundament.org>
+ *
+ *   This looks like the resonator band pass in SPKit. It's a
+ *   second order all-pole (IIR) band-pass filter described
+ *   at the pages 186 - 189 in
+ *     Dodge, Charles & Jerse, Thomas A. 1985:
+ *       Computer Music -- Synthesis, Composition and Performance.
+ *       New York: Schirmer Books.
+ *   Reference from the SPKit manual.
+ */
+
+  p->a2 = exp(-2 * M_PI * bw_Hz / effp->in_signal.rate);
+  p->a1 = -4 * p->a2 / (1 + p->a2) * cos(2 * M_PI * p->fc / effp->in_signal.rate);
+  p->b0 = sqrt(1 - p->a1 * p->a1 / (4 * p->a2)) * (1 - p->a2);
+  if (p->filter_type == filter_BPF_SPK_N) {
+    mult = sqrt(((1+p->a2) * (1+p->a2) - p->a1*p->a1) * (1-p->a2) / (1+p->a2)) / p->b0;
+    p->b0 *= mult;
+  }
diff --git a/src/sox/biquad.c b/src/sox/biquad.c
new file mode 100644
index 0000000..c57f190
--- /dev/null
+++ b/src/sox/biquad.c
@@ -0,0 +1,178 @@
+/* libSoX Biquad filter common functions   (c) 2006-7 robs at users.sourceforge.net
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "biquad.h"
+#include <string.h>
+
+typedef biquad_t priv_t;
+
+static char const * const width_str[] = {
+  "band-width(Hz)",
+  "band-width(kHz)",
+  "band-width(Hz, no warp)", /* deprecated */
+  "band-width(octaves)",
+  "Q",
+  "slope",
+};
+static char const all_width_types[] = "hkboqs";
+
+
+int lsx_biquad_getopts(sox_effect_t * effp, int argc, char **argv,
+    int min_args, int max_args, int fc_pos, int width_pos, int gain_pos,
+    char const * allowed_width_types, filter_t filter_type)
+{
+  priv_t * p = (priv_t *)effp->priv;
+  char width_type = *allowed_width_types;
+  char dummy, * dummy_p;     /* To check for extraneous chars. */
+  --argc, ++argv;
+
+  p->filter_type = filter_type;
+  if (argc < min_args || argc > max_args ||
+      (argc > fc_pos    && ((p->fc = lsx_parse_frequency(argv[fc_pos], &dummy_p)) <= 0 || *dummy_p)) ||
+      (argc > width_pos && ((unsigned)(sscanf(argv[width_pos], "%lf%c %c", &p->width, &width_type, &dummy)-1) > 1 || p->width <= 0)) ||
+      (argc > gain_pos  && sscanf(argv[gain_pos], "%lf %c", &p->gain, &dummy) != 1) ||
+      !strchr(allowed_width_types, width_type) || (width_type == 's' && p->width > 1))
+    return lsx_usage(effp);
+  p->width_type = strchr(all_width_types, width_type) - all_width_types;
+  if ((size_t)p->width_type >= strlen(all_width_types))
+    p->width_type = 0;
+  if (p->width_type == width_bw_kHz) {
+    p->width *= 1000;
+    p->width_type = width_bw_Hz;
+  }
+  return SOX_SUCCESS;
+}
+
+
+static int start(sox_effect_t * effp)
+{
+  priv_t * p = (priv_t *)effp->priv;
+  /* Simplify: */
+  p->b2 /= p->a0;
+  p->b1 /= p->a0;
+  p->b0 /= p->a0;
+  p->a2 /= p->a0;
+  p->a1 /= p->a0;
+
+  p->o2 = p->o1 = p->i2 = p->i1 = 0;
+  return SOX_SUCCESS;
+}
+
+
+int lsx_biquad_start(sox_effect_t * effp)
+{
+  priv_t * p = (priv_t *)effp->priv;
+
+  start(effp);
+
+  if (effp->global_info->plot == sox_plot_octave) {
+    printf(
+      "%% GNU Octave file (may also work with MATLAB(R) )\n"
+      "Fs=%g;minF=10;maxF=Fs/2;\n"
+      "sweepF=logspace(log10(minF),log10(maxF),200);\n"
+      "[h,w]=freqz([%.15e %.15e %.15e],[1 %.15e %.15e],sweepF,Fs);\n"
+      "semilogx(w,20*log10(h))\n"
+      "title('SoX effect: %s gain=%g frequency=%g %s=%g (rate=%g)')\n"
+      "xlabel('Frequency (Hz)')\n"
+      "ylabel('Amplitude Response (dB)')\n"
+      "axis([minF maxF -35 25])\n"
+      "grid on\n"
+      "disp('Hit return to continue')\n"
+      "pause\n"
+      , effp->in_signal.rate, p->b0, p->b1, p->b2, p->a1, p->a2
+      , effp->handler.name, p->gain, p->fc, width_str[p->width_type], p->width
+      , effp->in_signal.rate);
+    return SOX_EOF;
+  }
+  if (effp->global_info->plot == sox_plot_gnuplot) {
+    printf(
+      "# gnuplot file\n"
+      "set title 'SoX effect: %s gain=%g frequency=%g %s=%g (rate=%g)'\n"
+      "set xlabel 'Frequency (Hz)'\n"
+      "set ylabel 'Amplitude Response (dB)'\n"
+      "Fs=%g\n"
+      "b0=%.15e; b1=%.15e; b2=%.15e; a1=%.15e; a2=%.15e\n"
+      "o=2*pi/Fs\n"
+      "H(f)=sqrt((b0*b0+b1*b1+b2*b2+2.*(b0*b1+b1*b2)*cos(f*o)+2.*(b0*b2)*cos(2.*f*o))/(1.+a1*a1+a2*a2+2.*(a1+a1*a2)*cos(f*o)+2.*a2*cos(2.*f*o)))\n"
+      "set logscale x\n"
+      "set samples 250\n"
+      "set grid xtics ytics\n"
+      "set key off\n"
+      "plot [f=10:Fs/2] [-35:25] 20*log10(H(f))\n"
+      "pause -1 'Hit return to continue'\n"
+      , effp->handler.name, p->gain, p->fc, width_str[p->width_type], p->width
+      , effp->in_signal.rate, effp->in_signal.rate
+      , p->b0, p->b1, p->b2, p->a1, p->a2);
+    return SOX_EOF;
+  }
+  if (effp->global_info->plot == sox_plot_data) {
+    printf("# SoX effect: %s gain=%g frequency=%g %s=%g (rate=%g)\n"
+      "# IIR filter\n"
+      "# rate: %g\n"
+      "# name: b\n"
+      "# type: matrix\n"
+      "# rows: 3\n"
+      "# columns: 1\n"
+      "%24.16e\n%24.16e\n%24.16e\n"
+      "# name: a\n"
+      "# type: matrix\n"
+      "# rows: 3\n"
+      "# columns: 1\n"
+      "%24.16e\n%24.16e\n%24.16e\n"
+      , effp->handler.name, p->gain, p->fc, width_str[p->width_type], p->width
+      , effp->in_signal.rate, effp->in_signal.rate
+      , p->b0, p->b1, p->b2, 1. /* a0 */, p->a1, p->a2);
+    return SOX_EOF;
+  }
+  return SOX_SUCCESS;
+}
+
+
+int lsx_biquad_flow(sox_effect_t * effp, const sox_sample_t *ibuf,
+    sox_sample_t *obuf, size_t *isamp, size_t *osamp)
+{
+  priv_t * p = (priv_t *)effp->priv;
+  size_t len = *isamp = *osamp = min(*isamp, *osamp);
+  while (len--) {
+    double o0 = *ibuf*p->b0 + p->i1*p->b1 + p->i2*p->b2 - p->o1*p->a1 - p->o2*p->a2;
+    p->i2 = p->i1, p->i1 = *ibuf++;
+    p->o2 = p->o1, p->o1 = o0;
+    *obuf++ = SOX_ROUND_CLIP_COUNT(o0, effp->clips);
+  }
+  return SOX_SUCCESS;
+}
+
+static int create(sox_effect_t * effp, int argc, char * * argv)
+{
+  priv_t             * p = (priv_t *)effp->priv;
+  double             * d = &p->b0;
+  char               c;
+
+  --argc, ++argv;
+  if (argc == 6)
+    for (; argc && sscanf(*argv, "%lf%c", d, &c) == 1; --argc, ++argv, ++d);
+  return argc? lsx_usage(effp) : SOX_SUCCESS;
+}
+
+sox_effect_handler_t const * lsx_biquad_effect_fn(void)
+{
+  static sox_effect_handler_t handler = {
+    "biquad", "b0 b1 b2 a0 a1 a2", 0,
+    create, lsx_biquad_start, lsx_biquad_flow, NULL, NULL, NULL, sizeof(priv_t)
+  };
+  return &handler;
+}
diff --git a/src/sox/biquad.h b/src/sox/biquad.h
new file mode 100644
index 0000000..8786ac8
--- /dev/null
+++ b/src/sox/biquad.h
@@ -0,0 +1,78 @@
+/* libSoX Biquad filter common definitions (c) 2006-7 robs at users.sourceforge.net
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef biquad_included
+#define biquad_included
+
+#define LSX_EFF_ALIAS
+#include "sox_i.h"
+
+typedef enum {
+  filter_LPF,
+  filter_HPF,
+  filter_BPF_CSG,
+  filter_BPF,
+  filter_notch,
+  filter_APF,
+  filter_peakingEQ,
+  filter_lowShelf,
+  filter_highShelf,
+  filter_LPF_1,
+  filter_HPF_1,
+  filter_BPF_SPK,
+  filter_BPF_SPK_N,
+  filter_AP1,
+  filter_AP2,
+  filter_deemph,
+  filter_riaa
+} filter_t;
+
+typedef enum {
+  width_bw_Hz,
+  width_bw_kHz,
+  /* The old, non-RBJ, non-freq-warped band-pass/reject response;
+   * leaving here for now just in case anybody misses it: */
+  width_bw_old,
+  width_bw_oct,
+  width_Q,
+  width_slope
+} width_t;
+
+/* Private data for the biquad filter effects */
+typedef struct {
+  double gain;             /* For EQ filters */
+  double fc;               /* Centre/corner/cutoff frequency */
+  double width;            /* Filter width; interpreted as per width_type */
+  width_t width_type;
+
+  filter_t filter_type;
+
+  double b0, b1, b2;       /* Filter coefficients */
+  double a0, a1, a2;       /* Filter coefficients */
+
+  sox_sample_t i1, i2;     /* Filter memory */
+  double      o1, o2;      /* Filter memory */
+} biquad_t;
+
+int lsx_biquad_getopts(sox_effect_t * effp, int n, char **argv,
+    int min_args, int max_args, int fc_pos, int width_pos, int gain_pos,
+    char const * allowed_width_types, filter_t filter_type);
+int lsx_biquad_start(sox_effect_t * effp);
+int lsx_biquad_flow(sox_effect_t * effp, const sox_sample_t *ibuf, sox_sample_t *obuf,
+                        size_t *isamp, size_t *osamp);
+
+#endif
diff --git a/src/sox/biquads.c b/src/sox/biquads.c
new file mode 100644
index 0000000..19793a6
--- /dev/null
+++ b/src/sox/biquads.c
@@ -0,0 +1,400 @@
+/* libSoX Biquad filter effects   (c) 2006-8 robs at users.sourceforge.net
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ *
+ * 2-pole filters designed by Robert Bristow-Johnson <rbj at audioimagination.com>
+ *   see http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt
+ *
+ * 1-pole filters based on code (c) 2000 Chris Bagwell <cbagwell at sprynet.com>
+ *   Algorithms: Recursive single pole low/high pass filter
+ *   Reference: The Scientist and Engineer's Guide to Digital Signal Processing
+ *
+ *   low-pass: output[N] = input[N] * A + output[N-1] * B
+ *     X = exp(-2.0 * pi * Fc)
+ *     A = 1 - X
+ *     B = X
+ *     Fc = cutoff freq / sample rate
+ *
+ *     Mimics an RC low-pass filter:
+ *
+ *     ---/\/\/\/\----------->
+ *                   |
+ *                  --- C
+ *                  ---
+ *                   |
+ *                   |
+ *                   V
+ *
+ *   high-pass: output[N] = A0 * input[N] + A1 * input[N-1] + B1 * output[N-1]
+ *     X  = exp(-2.0 * pi * Fc)
+ *     A0 = (1 + X) / 2
+ *     A1 = -(1 + X) / 2
+ *     B1 = X
+ *     Fc = cutoff freq / sample rate
+ *
+ *     Mimics an RC high-pass filter:
+ *
+ *         || C
+ *     ----||--------->
+ *         ||    |
+ *               <
+ *               > R
+ *               <
+ *               |
+ *               V
+ */
+
+
+#include "biquad.h"
+#include <assert.h>
+#include <string.h>
+
+typedef biquad_t priv_t;
+
+
+static int hilo1_getopts(sox_effect_t * effp, int argc, char **argv) {
+  return lsx_biquad_getopts(effp, argc, argv, 1, 1, 0, 1, 2, "",
+      *effp->handler.name == 'l'? filter_LPF_1 : filter_HPF_1);
+}
+
+
+static int hilo2_getopts(sox_effect_t * effp, int argc, char **argv) {
+  priv_t * p = (priv_t *)effp->priv;
+  if (argc > 1 && strcmp(argv[1], "-1") == 0)
+    return hilo1_getopts(effp, argc - 1, argv + 1);
+  if (argc > 1 && strcmp(argv[1], "-2") == 0)
+    ++argv, --argc;
+  p->width = sqrt(0.5); /* Default to Butterworth */
+  return lsx_biquad_getopts(effp, argc, argv, 1, 2, 0, 1, 2, "qohk",
+      *effp->handler.name == 'l'? filter_LPF : filter_HPF);
+}
+
+
+static int bandpass_getopts(sox_effect_t * effp, int argc, char **argv) {
+  filter_t type = filter_BPF;
+  if (argc > 1 && strcmp(argv[1], "-c") == 0)
+    ++argv, --argc, type = filter_BPF_CSG;
+  return lsx_biquad_getopts(effp, argc, argv, 2, 2, 0, 1, 2, "hkqob", type);
+}
+
+
+static int bandrej_getopts(sox_effect_t * effp, int argc, char **argv) {
+  return lsx_biquad_getopts(effp, argc, argv, 2, 2, 0, 1, 2, "hkqob", filter_notch);
+}
+
+
+static int allpass_getopts(sox_effect_t * effp, int argc, char **argv) {
+  filter_t type = filter_APF;
+  int m;
+  if (argc > 1 && strcmp(argv[1], "-1") == 0)
+    ++argv, --argc, type = filter_AP1;
+  else if (argc > 1 && strcmp(argv[1], "-2") == 0)
+    ++argv, --argc, type = filter_AP2;
+  m = 1 + (type == filter_APF);
+  return lsx_biquad_getopts(effp, argc, argv, m, m, 0, 1, 2, "hkqo", type);
+}
+
+
+static int tone_getopts(sox_effect_t * effp, int argc, char **argv) {
+  priv_t * p = (priv_t *)effp->priv;
+  p->width = 0.5;
+  p->fc = *effp->handler.name == 'b'? 100 : 3000;
+  return lsx_biquad_getopts(effp, argc, argv, 1, 3, 1, 2, 0, "shkqo",
+      *effp->handler.name == 'b'?  filter_lowShelf: filter_highShelf);
+}
+
+
+static int equalizer_getopts(sox_effect_t * effp, int argc, char **argv) {
+  return lsx_biquad_getopts(effp, argc, argv, 3, 3, 0, 1, 2, "qohk", filter_peakingEQ);
+}
+
+
+static int band_getopts(sox_effect_t * effp, int argc, char **argv) {
+  filter_t type = filter_BPF_SPK;
+  if (argc > 1 && strcmp(argv[1], "-n") == 0)
+    ++argv, --argc, type = filter_BPF_SPK_N;
+  return lsx_biquad_getopts(effp, argc, argv, 1, 2, 0, 1, 2, "hkqo", type);
+}
+
+
+static int deemph_getopts(sox_effect_t * effp, int argc, char **argv) {
+  priv_t * p = (priv_t *)effp->priv;
+  p->fc    = 5283;
+  p->width = 0.4845;
+  p->gain  = -9.477;
+  return lsx_biquad_getopts(effp, argc, argv, 0, 0, 0, 1, 2, "s", filter_deemph);
+}
+
+
+static int riaa_getopts(sox_effect_t * effp, int argc, char **argv) {
+  priv_t * p = (priv_t *)effp->priv;
+  p->filter_type = filter_riaa;
+  (void)argv;
+  return --argc? lsx_usage(effp) : SOX_SUCCESS;
+}
+
+
+static void make_poly_from_roots(
+    double const * roots, size_t num_roots, double * poly)
+{
+  size_t i, j;
+  poly[0] = 1;
+  poly[1] = -roots[0];
+  memset(poly + 2, 0, (num_roots + 1 - 2) * sizeof(*poly));
+  for (i = 1; i < num_roots; ++i)
+    for (j = num_roots; j > 0; --j)
+      poly[j] -= poly[j - 1] * roots[i];
+}
+
+static int start(sox_effect_t * effp)
+{
+  priv_t * p = (priv_t *)effp->priv;
+  double w0 = 2 * M_PI * p->fc / effp->in_signal.rate;
+  double A  = exp(p->gain / 40 * log(10.));
+  double alpha = 0, mult = dB_to_linear(max(p->gain, 0));
+
+  if (w0 > M_PI) {
+    lsx_fail("frequency must be less than half the sample-rate (Nyquist rate)");
+    return SOX_EOF;
+  }
+
+  /* Set defaults: */
+  p->b0 = p->b1 = p->b2 = p->a1 = p->a2 = 0;
+  p->a0 = 1;
+
+  if (p->width) switch (p->width_type) {
+    case width_slope:
+      alpha = sin(w0)/2 * sqrt((A + 1/A)*(1/p->width - 1) + 2);
+      break;
+
+    case width_Q:
+      alpha = sin(w0)/(2*p->width);
+      break;
+
+    case width_bw_oct:
+      alpha = sin(w0)*sinh(log(2.)/2 * p->width * w0/sin(w0));
+      break;
+
+    case width_bw_Hz:
+      alpha = sin(w0)/(2*p->fc/p->width);
+      break;
+
+    case width_bw_kHz: assert(0); /* Shouldn't get here */
+
+    case width_bw_old:
+      alpha = tan(M_PI * p->width / effp->in_signal.rate);
+      break;
+  }
+  switch (p->filter_type) {
+    case filter_LPF: /* H(s) = 1 / (s^2 + s/Q + 1) */
+      p->b0 =  (1 - cos(w0))/2;
+      p->b1 =   1 - cos(w0);
+      p->b2 =  (1 - cos(w0))/2;
+      p->a0 =   1 + alpha;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha;
+      break;
+
+    case filter_HPF: /* H(s) = s^2 / (s^2 + s/Q + 1) */
+      p->b0 =  (1 + cos(w0))/2;
+      p->b1 = -(1 + cos(w0));
+      p->b2 =  (1 + cos(w0))/2;
+      p->a0 =   1 + alpha;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha;
+      break;
+
+    case filter_BPF_CSG: /* H(s) = s / (s^2 + s/Q + 1)  (constant skirt gain, peak gain = Q) */
+      p->b0 =   sin(w0)/2;
+      p->b1 =   0;
+      p->b2 =  -sin(w0)/2;
+      p->a0 =   1 + alpha;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha;
+      break;
+
+    case filter_BPF: /* H(s) = (s/Q) / (s^2 + s/Q + 1)      (constant 0 dB peak gain) */
+      p->b0 =   alpha;
+      p->b1 =   0;
+      p->b2 =  -alpha;
+      p->a0 =   1 + alpha;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha;
+      break;
+
+    case filter_notch: /* H(s) = (s^2 + 1) / (s^2 + s/Q + 1) */
+      p->b0 =   1;
+      p->b1 =  -2*cos(w0);
+      p->b2 =   1;
+      p->a0 =   1 + alpha;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha;
+      break;
+
+    case filter_APF: /* H(s) = (s^2 - s/Q + 1) / (s^2 + s/Q + 1) */
+      p->b0 =   1 - alpha;
+      p->b1 =  -2*cos(w0);
+      p->b2 =   1 + alpha;
+      p->a0 =   1 + alpha;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha;
+      break;
+
+    case filter_peakingEQ: /* H(s) = (s^2 + s*(A/Q) + 1) / (s^2 + s/(A*Q) + 1) */
+      if (A == 1)
+        return SOX_EFF_NULL;
+      p->b0 =   1 + alpha*A;
+      p->b1 =  -2*cos(w0);
+      p->b2 =   1 - alpha*A;
+      p->a0 =   1 + alpha/A;
+      p->a1 =  -2*cos(w0);
+      p->a2 =   1 - alpha/A;
+      break;
+
+    case filter_lowShelf: /* H(s) = A * (s^2 + (sqrt(A)/Q)*s + A)/(A*s^2 + (sqrt(A)/Q)*s + 1) */
+      if (A == 1)
+        return SOX_EFF_NULL;
+      p->b0 =    A*( (A+1) - (A-1)*cos(w0) + 2*sqrt(A)*alpha );
+      p->b1 =  2*A*( (A-1) - (A+1)*cos(w0)                   );
+      p->b2 =    A*( (A+1) - (A-1)*cos(w0) - 2*sqrt(A)*alpha );
+      p->a0 =        (A+1) + (A-1)*cos(w0) + 2*sqrt(A)*alpha;
+      p->a1 =   -2*( (A-1) + (A+1)*cos(w0)                   );
+      p->a2 =        (A+1) + (A-1)*cos(w0) - 2*sqrt(A)*alpha;
+      break;
+
+    case filter_deemph:  /* See deemph.plt for documentation */
+      if (effp->in_signal.rate != 44100) {
+        lsx_fail("Sample rate must be 44100 (audio-CD)");
+        return SOX_EOF;
+      }
+      /* Falls through... */
+
+    case filter_highShelf: /* H(s) = A * (A*s^2 + (sqrt(A)/Q)*s + 1)/(s^2 + (sqrt(A)/Q)*s + A) */
+      if (!A)
+        return SOX_EFF_NULL;
+      p->b0 =    A*( (A+1) + (A-1)*cos(w0) + 2*sqrt(A)*alpha );
+      p->b1 = -2*A*( (A-1) + (A+1)*cos(w0)                   );
+      p->b2 =    A*( (A+1) + (A-1)*cos(w0) - 2*sqrt(A)*alpha );
+      p->a0 =        (A+1) - (A-1)*cos(w0) + 2*sqrt(A)*alpha;
+      p->a1 =    2*( (A-1) - (A+1)*cos(w0)                   );
+      p->a2 =        (A+1) - (A-1)*cos(w0) - 2*sqrt(A)*alpha;
+      break;
+
+    case filter_LPF_1: /* single-pole */
+      p->a1 = -exp(-w0);
+      p->b0 = 1 + p->a1;
+      break;
+
+    case filter_HPF_1: /* single-pole */
+      p->a1 = -exp(-w0);
+      p->b0 = (1 - p->a1)/2;
+      p->b1 = -p->b0;
+      break;
+
+    case filter_BPF_SPK: case filter_BPF_SPK_N: {
+      double bw_Hz;
+      if (!p->width)
+        p->width = p->fc / 2;
+      bw_Hz = p->width_type == width_Q?  p->fc / p->width :
+        p->width_type == width_bw_Hz? p->width :
+        p->fc * (pow(2., p->width) - 1) * pow(2., -0.5 * p->width); /* bw_oct */
+      #include "band.h" /* Has different licence */
+      break;
+    }
+
+    case filter_AP1:     /* Experimental 1-pole all-pass from Tom Erbe @ UCSD */
+      p->b0 = exp(-w0);
+      p->b1 = -1;
+      p->a1 = -exp(-w0);
+      break;
+
+    case filter_AP2:     /* Experimental 2-pole all-pass from Tom Erbe @ UCSD */
+      p->b0 = 1 - sin(w0);
+      p->b1 = -2 * cos(w0);
+      p->b2 = 1 + sin(w0);
+      p->a0 = 1 + sin(w0);
+      p->a1 = -2 * cos(w0);
+      p->a2 = 1 - sin(w0);
+      break;
+
+    case filter_riaa: /* http://www.dsprelated.com/showmessage/73300/3.php */
+      if (effp->in_signal.rate == 44100) {
+        static const double zeros[] = {-0.2014898, 0.9233820};
+        static const double poles[] = {0.7083149, 0.9924091};
+        make_poly_from_roots(zeros, (size_t)2, &p->b0);
+        make_poly_from_roots(poles, (size_t)2, &p->a0);
+      }
+      else if (effp->in_signal.rate == 48000) {
+        static const double zeros[] = {-0.1766069, 0.9321590};
+        static const double poles[] = {0.7396325, 0.9931330};
+        make_poly_from_roots(zeros, (size_t)2, &p->b0);
+        make_poly_from_roots(poles, (size_t)2, &p->a0);
+      }
+      else if (effp->in_signal.rate == 88200) {
+        static const double zeros[] = {-0.1168735, 0.9648312};
+        static const double poles[] = {0.8590646, 0.9964002};
+        make_poly_from_roots(zeros, (size_t)2, &p->b0);
+        make_poly_from_roots(poles, (size_t)2, &p->a0);
+      }
+      else if (effp->in_signal.rate == 96000) {
+        static const double zeros[] = {-0.1141486, 0.9676817};
+        static const double poles[] = {0.8699137, 0.9966946};
+        make_poly_from_roots(zeros, (size_t)2, &p->b0);
+        make_poly_from_roots(poles, (size_t)2, &p->a0);
+      }
+      else {
+        lsx_fail("Sample rate must be 44.1k, 48k, 88.2k, or 96k");
+        return SOX_EOF;
+      }
+      { /* Normalise to 0dB at 1kHz (Thanks to Glenn Davis) */
+        double y = 2 * M_PI * 1000 / effp->in_signal.rate;
+        double b_re = p->b0 + p->b1 * cos(-y) + p->b2 * cos(-2 * y);
+        double a_re = p->a0 + p->a1 * cos(-y) + p->a2 * cos(-2 * y);
+        double b_im = p->b1 * sin(-y) + p->b2 * sin(-2 * y);
+        double a_im = p->a1 * sin(-y) + p->a2 * sin(-2 * y);
+        double g = 1 / sqrt((sqr(b_re) + sqr(b_im)) / (sqr(a_re) + sqr(a_im)));
+        p->b0 *= g; p->b1 *= g; p->b2 *= g;
+      }
+      mult = (p->b0 + p->b1 + p->b2) / (p->a0 + p->a1 + p->a2);
+      lsx_debug("gain=%f", linear_to_dB(mult));
+      break;
+  }
+  if (effp->in_signal.mult)
+    *effp->in_signal.mult /= mult;
+  return lsx_biquad_start(effp);
+}
+
+
+#define BIQUAD_EFFECT(name,group,usage,flags) \
+sox_effect_handler_t const * lsx_##name##_effect_fn(void) { \
+  static sox_effect_handler_t handler = { \
+    #name, usage, flags, \
+    group##_getopts, start, lsx_biquad_flow, 0, 0, 0, sizeof(biquad_t)\
+  }; \
+  return &handler; \
+}
+
+BIQUAD_EFFECT(highpass,  hilo2,    "[-1|-2] frequency [width[q|o|h|k](0.707q)]", 0)
+BIQUAD_EFFECT(lowpass,   hilo2,    "[-1|-2] frequency [width[q|o|h|k]](0.707q)", 0)
+BIQUAD_EFFECT(bandpass,  bandpass, "[-c] frequency width[h|k|q|o]", 0)
+BIQUAD_EFFECT(bandreject,bandrej,  "frequency width[h|k|q|o]", 0)
+BIQUAD_EFFECT(allpass,   allpass,  "frequency width[h|k|q|o]", 0)
+BIQUAD_EFFECT(bass,      tone,     "gain [frequency(100) [width[s|h|k|q|o]](0.5s)]", 0)
+BIQUAD_EFFECT(treble,    tone,     "gain [frequency(3000) [width[s|h|k|q|o]](0.5s)]", 0)
+BIQUAD_EFFECT(equalizer, equalizer,"frequency width[q|o|h|k] gain", 0)
+BIQUAD_EFFECT(band,      band,     "[-n] center [width[h|k|q|o]]", 0)
+BIQUAD_EFFECT(deemph,    deemph,   NULL, 0)
+BIQUAD_EFFECT(riaa,      riaa,     NULL, 0)
diff --git a/src/sox/effects.c b/src/sox/effects.c
new file mode 100644
index 0000000..435412f
--- /dev/null
+++ b/src/sox/effects.c
@@ -0,0 +1,544 @@
+/* SoX Effects chain     (c) 2007 robs at users.sourceforge.net
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#define LSX_EFF_ALIAS
+#include "sox_i.h"
+#include <assert.h>
+#include <string.h>
+#ifdef HAVE_STRINGS_H
+  #include <strings.h>
+#endif
+
+#define DEBUG_EFFECTS_CHAIN 0
+
+/* Default effect handler functions for do-nothing situations: */
+
+static int default_function(sox_effect_t * effp UNUSED)
+{
+  return SOX_SUCCESS;
+}
+
+/* Pass through samples verbatim */
+int lsx_flow_copy(sox_effect_t * effp UNUSED, const sox_sample_t * ibuf,
+    sox_sample_t * obuf, size_t * isamp, size_t * osamp)
+{
+  *isamp = *osamp = min(*isamp, *osamp);
+  memcpy(obuf, ibuf, *isamp * sizeof(*obuf));
+  return SOX_SUCCESS;
+}
+
+/* Inform no more samples to drain */
+static int default_drain(sox_effect_t * effp UNUSED, sox_sample_t *obuf UNUSED, size_t *osamp)
+{
+  *osamp = 0;
+  return SOX_EOF;
+}
+
+/* Check that no parameters have been given */
+static int default_getopts(sox_effect_t * effp, int argc, char **argv UNUSED)
+{
+  return --argc? lsx_usage(effp) : SOX_SUCCESS;
+}
+
+/* Partially initialise the effect structure; signal info will come later */
+sox_effect_t * sox_create_effect(sox_effect_handler_t const * eh)
+{
+  sox_effect_t * effp = lsx_calloc(1, sizeof(*effp));
+  effp->obuf = NULL;
+
+  effp->global_info = sox_get_effects_globals();
+  effp->handler = *eh;
+  if (!effp->handler.getopts) effp->handler.getopts = default_getopts;
+  if (!effp->handler.start  ) effp->handler.start   = default_function;
+  if (!effp->handler.flow   ) effp->handler.flow    = lsx_flow_copy;
+  if (!effp->handler.drain  ) effp->handler.drain   = default_drain;
+  if (!effp->handler.stop   ) effp->handler.stop    = default_function;
+  if (!effp->handler.kill   ) effp->handler.kill    = default_function;
+
+  effp->priv = lsx_calloc(1, effp->handler.priv_size);
+
+  return effp;
+} /* sox_create_effect */
+
+int sox_effect_options(sox_effect_t *effp, int argc, char * const argv[])
+{
+  int result;
+
+  char * * argv2 = lsx_malloc((argc + 1) * sizeof(*argv2));
+  argv2[0] = (char *)effp->handler.name;
+  memcpy(argv2 + 1, argv, argc * sizeof(*argv2));
+  result = effp->handler.getopts(effp, argc + 1, argv2);
+  free(argv2);
+  return result;
+} /* sox_effect_options */
+
+/* Effects chain: */
+
+sox_effects_chain_t * sox_create_effects_chain(
+    sox_encodinginfo_t const * in_enc, sox_encodinginfo_t const * out_enc)
+{
+  sox_effects_chain_t * result = lsx_calloc(1, sizeof(sox_effects_chain_t));
+  result->global_info = *sox_get_effects_globals();
+  result->in_enc = in_enc;
+  result->out_enc = out_enc;
+  return result;
+} /* sox_create_effects_chain */
+
+void sox_delete_effects_chain(sox_effects_chain_t *ecp)
+{
+    if (ecp && ecp->length)
+        sox_delete_effects(ecp);
+    free(ecp->effects);
+    free(ecp);
+} /* sox_delete_effects_chain */
+
+/* Effect can call in start() or flow() to set minimum input size to flow() */
+int lsx_effect_set_imin(sox_effect_t * effp, size_t imin)
+{
+  if (imin > sox_globals.bufsiz / effp->flows) {
+    lsx_fail("sox_bufsiz not big enough");
+    return SOX_EOF;
+  }
+
+  effp->imin = imin;
+  return SOX_SUCCESS;
+}
+
+/* Effects table to be extended in steps of EFF_TABLE_STEP */
+#define EFF_TABLE_STEP 8
+
+/* Add an effect to the chain. *in is the input signal for this effect. *out is
+ * a suggestion as to what the output signal should be, but depending on its
+ * given options and *in, the effect can choose to do differently.  Whatever
+ * output rate and channels the effect does produce are written back to *in,
+ * ready for the next effect in the chain.
+ */
+int sox_add_effect(sox_effects_chain_t * chain, sox_effect_t * effp, sox_signalinfo_t * in, sox_signalinfo_t const * out)
+{
+  int ret, (*start)(sox_effect_t * effp) = effp->handler.start;
+  unsigned f;
+  sox_effect_t eff0;  /* Copy of effect for flow 0 before calling start */
+
+  effp->global_info = &chain->global_info;
+  effp->in_signal = *in;
+  effp->out_signal = *out;
+  effp->in_encoding = chain->in_enc;
+  effp->out_encoding = chain->out_enc;
+  if (!(effp->handler.flags & SOX_EFF_CHAN))
+    effp->out_signal.channels = in->channels;
+  if (!(effp->handler.flags & SOX_EFF_RATE))
+    effp->out_signal.rate = in->rate;
+  if (!(effp->handler.flags & SOX_EFF_PREC))
+    effp->out_signal.precision = (effp->handler.flags & SOX_EFF_MODIFY)?
+        in->precision : SOX_SAMPLE_PRECISION;
+  if (!(effp->handler.flags & SOX_EFF_GAIN))
+    effp->out_signal.mult = in->mult;
+
+  effp->flows =
+    (effp->handler.flags & SOX_EFF_MCHAN)? 1 : effp->in_signal.channels;
+  effp->clips = 0;
+  effp->imin = 0;
+  eff0 = *effp, eff0.priv = lsx_memdup(eff0.priv, eff0.handler.priv_size);
+  eff0.in_signal.mult = NULL; /* Only used in channel 0 */
+  ret = start(effp);
+  if (ret == SOX_EFF_NULL) {
+    lsx_report("has no effect in this configuration");
+    free(eff0.priv);
+    free(effp->priv);
+    effp->priv = NULL;
+    return SOX_SUCCESS;
+  }
+  if (ret != SOX_SUCCESS) {
+    free(eff0.priv);
+    return SOX_EOF;
+  }
+  if (in->mult)
+    lsx_debug("mult=%g", *in->mult);
+
+  if (!(effp->handler.flags & SOX_EFF_LENGTH)) {
+    effp->out_signal.length = in->length;
+    if (effp->out_signal.length != SOX_UNKNOWN_LEN) {
+      if (effp->handler.flags & SOX_EFF_CHAN)
+        effp->out_signal.length =
+          effp->out_signal.length / in->channels * effp->out_signal.channels;
+      if (effp->handler.flags & SOX_EFF_RATE)
+        effp->out_signal.length =
+          effp->out_signal.length / in->rate * effp->out_signal.rate + .5;
+    }
+  }
+
+  *in = effp->out_signal;
+
+  if (chain->length == chain->table_size) {
+    chain->table_size += EFF_TABLE_STEP;
+    lsx_debug_more("sox_add_effect: extending effects table, "
+      "new size = %lu", (unsigned long)chain->table_size);
+    lsx_revalloc(chain->effects, chain->table_size);
+  }
+
+  chain->effects[chain->length] =
+    lsx_calloc(effp->flows, sizeof(chain->effects[chain->length][0]));
+  chain->effects[chain->length][0] = *effp;
+
+  for (f = 1; f < effp->flows; ++f) {
+    chain->effects[chain->length][f] = eff0;
+    chain->effects[chain->length][f].flow = f;
+    chain->effects[chain->length][f].priv = lsx_memdup(eff0.priv, eff0.handler.priv_size);
+    if (start(&chain->effects[chain->length][f]) != SOX_SUCCESS) {
+      free(eff0.priv);
+      return SOX_EOF;
+    }
+  }
+
+  ++chain->length;
+  free(eff0.priv);
+  return SOX_SUCCESS;
+}
+
+static int flow_effect(sox_effects_chain_t * chain, size_t n)
+{
+  sox_effect_t * effp1 = &chain->effects[n - 1][0];
+  sox_effect_t * effp = &chain->effects[n][0];
+  int effstatus = SOX_SUCCESS, f = 0;
+  size_t i;
+  const sox_sample_t *ibuf;
+  size_t idone = effp1->oend - effp1->obeg;
+  size_t obeg = sox_globals.bufsiz - effp->oend;
+#if DEBUG_EFFECTS_CHAIN
+  size_t pre_idone = idone;
+  size_t pre_odone = obeg;
+#endif
+
+  if (effp->flows == 1) {     /* Run effect on all channels at once */
+    idone -= idone % effp->in_signal.channels;
+    effstatus = effp->handler.flow(effp, &effp1->obuf[effp1->obeg],
+                                   &effp->obuf[effp->oend], &idone, &obeg);
+    if (obeg % effp->out_signal.channels != 0) {
+      lsx_fail("multi-channel effect flowed asymmetrically!");
+      effstatus = SOX_EOF;
+    }
+  } else {               /* Run effect on each channel individually */
+    sox_sample_t *obuf = &effp->obuf[effp->oend];
+    size_t idone_last = 0, odone_last = 0; /* Initialised to prevent warning */
+
+    ibuf = &effp1->obuf[effp1->obeg];
+    for (i = 0; i < idone; i += effp->flows)
+      for (f = 0; f < (int)effp->flows; ++f)
+        chain->ibufc[f][i / effp->flows] = *ibuf++;
+
+#ifdef HAVE_OPENMP
+    if (sox_globals.use_threads && effp->flows > 1)
+    {
+      #pragma omp parallel for
+      for (f = 0; f < (int)effp->flows; ++f) {
+        size_t idonec = idone / effp->flows;
+        size_t odonec = obeg / effp->flows;
+        int eff_status_c = effp->handler.flow(&chain->effects[n][f],
+            chain->ibufc[f], chain->obufc[f], &idonec, &odonec);
+        if (!f) {
+          idone_last = idonec;
+          odone_last = odonec;
+        }
+
+        if (eff_status_c != SOX_SUCCESS)
+          effstatus = SOX_EOF;
+      }
+    }
+    else /* sox_globals.use_threads */
+#endif
+    {
+      for (f = 0; f < (int)effp->flows; ++f) {
+        size_t idonec = idone / effp->flows;
+        size_t odonec = obeg / effp->flows;
+        int eff_status_c = effp->handler.flow(&chain->effects[n][f],
+            chain->ibufc[f], chain->obufc[f], &idonec, &odonec);
+        if (f && (idonec != idone_last || odonec != odone_last)) {
+          lsx_fail("flowed asymmetrically!");
+          effstatus = SOX_EOF;
+        }
+        idone_last = idonec;
+        odone_last = odonec;
+
+        if (eff_status_c != SOX_SUCCESS)
+          effstatus = SOX_EOF;
+      }
+    }
+
+    for (i = 0; i < odone_last; ++i)
+      for (f = 0; f < (int)effp->flows; ++f)
+        *obuf++ = chain->obufc[f][i];
+
+    idone = effp->flows * idone_last;
+    obeg = effp->flows * odone_last;
+  }
+#if DEBUG_EFFECTS_CHAIN
+  lsx_report("flow:  %5" PRIuPTR " %5" PRIuPTR " %5" PRIuPTR " %5" PRIuPTR,
+      pre_idone, pre_odone, idone, obeg);
+#endif
+  effp1->obeg += idone;
+  if (effp1->obeg == effp1->oend)
+    effp1->obeg = effp1->oend = 0;
+  else if (effp1->oend - effp1->obeg < effp->imin ) { /* Need to refill? */
+    memmove(effp1->obuf, &effp1->obuf[effp1->obeg], (effp1->oend - effp1->obeg) * sizeof(*effp1->obuf));
+    effp1->oend -= effp1->obeg;
+    effp1->obeg = 0;
+  }
+
+  effp->oend += obeg;
+
+  return effstatus == SOX_SUCCESS? SOX_SUCCESS : SOX_EOF;
+}
+
+/* The same as flow_effect but with no input */
+static int drain_effect(sox_effects_chain_t * chain, size_t n)
+{
+  sox_effect_t * effp = &chain->effects[n][0];
+  int effstatus = SOX_SUCCESS;
+  size_t i, f;
+  size_t obeg = sox_globals.bufsiz - effp->oend;
+#if DEBUG_EFFECTS_CHAIN
+  size_t pre_odone = obeg;
+#endif
+
+  if (effp->flows == 1) { /* Run effect on all channels at once */
+    effstatus = effp->handler.drain(effp, &effp->obuf[effp->oend], &obeg);
+    if (obeg % effp->out_signal.channels != 0) {
+      lsx_fail("multi-channel effect drained asymmetrically!");
+      effstatus = SOX_EOF;
+    }
+  } else {                       /* Run effect on each channel individually */
+    sox_sample_t *obuf = &effp->obuf[effp->oend];
+    size_t odone_last = 0; /* Initialised to prevent warning */
+
+    for (f = 0; f < effp->flows; ++f) {
+      size_t odonec = obeg / effp->flows;
+      int eff_status_c = effp->handler.drain(&chain->effects[n][f], chain->obufc[f], &odonec);
+      if (f && (odonec != odone_last)) {
+        lsx_fail("drained asymmetrically!");
+        effstatus = SOX_EOF;
+      }
+      odone_last = odonec;
+
+      if (eff_status_c != SOX_SUCCESS)
+        effstatus = SOX_EOF;
+    }
+
+    for (i = 0; i < odone_last; ++i)
+      for (f = 0; f < effp->flows; ++f)
+        *obuf++ = chain->obufc[f][i];
+    obeg = f * odone_last;
+  }
+#if DEBUG_EFFECTS_CHAIN
+  lsx_report("drain: %5" PRIuPTR " %5" PRIuPTR " %5" PRIuPTR " %5" PRIuPTR,
+      (size_t)0, pre_odone, (size_t)0, obeg);
+#endif
+  if (!obeg)   /* This is the only thing that drain has and flow hasn't */
+    effstatus = SOX_EOF;
+
+  effp->oend += obeg;
+
+  return effstatus == SOX_SUCCESS? SOX_SUCCESS : SOX_EOF;
+}
+
+/* Flow data through the effects chain until an effect or callback gives EOF */
+int sox_flow_effects(sox_effects_chain_t * chain, int (* callback)(sox_bool all_done, void * client_data), void * client_data)
+{
+  int flow_status = SOX_SUCCESS;
+  size_t e, source_e = 0;               /* effect indices */
+  size_t f, max_flows = 0;
+  sox_bool draining = sox_true;
+
+  for (e = 0; e < chain->length; ++e) {
+    chain->effects[e][0].obuf = lsx_realloc(chain->effects[e][0].obuf,
+        sox_globals.bufsiz * sizeof(chain->effects[e][0].obuf[0]));
+      /* Possibly there is already a buffer, if this is a used effect;
+         it may still contain samples in that case. */
+      /* Memory will be freed by sox_delete_effect() later. */
+    max_flows = max(max_flows, chain->effects[e][0].flows);
+  }
+  if (max_flows == 1) /* don't need interleave buffers */
+    max_flows = 0;
+  chain->ibufc = lsx_calloc(max_flows, sizeof(*chain->ibufc));
+  chain->obufc = lsx_calloc(max_flows, sizeof(*chain->obufc));
+  for (f = 0; f < max_flows; ++f) {
+    chain->ibufc[f] = lsx_calloc(sox_globals.bufsiz / 2, sizeof(chain->ibufc[f][0]));
+    chain->obufc[f] = lsx_calloc(sox_globals.bufsiz / 2, sizeof(chain->obufc[f][0]));
+  }
+
+  e = chain->length - 1;
+  while (source_e < chain->length) {
+#define have_imin (e > 0 && e < chain->length && chain->effects[e - 1][0].oend - chain->effects[e - 1][0].obeg >= chain->effects[e][0].imin)
+    size_t osize = chain->effects[e][0].oend - chain->effects[e][0].obeg;
+    if (e == source_e && (draining || !have_imin)) {
+      if (drain_effect(chain, e) == SOX_EOF) {
+        ++source_e;
+        draining = sox_false;
+      }
+    } else if (have_imin && flow_effect(chain, e) == SOX_EOF) {
+      flow_status = SOX_EOF;
+      if (e == chain->length - 1)
+        break;
+      source_e = e;
+      draining = sox_true;
+    }
+    if (e < chain->length && chain->effects[e][0].oend - chain->effects[e][0].obeg > osize) /* False for output */
+      ++e;
+    else if (e == source_e)
+      draining = sox_true;
+    else if ((int)--e < (int)source_e)
+      e = source_e;
+
+    if (callback && callback(source_e == chain->length, client_data) != SOX_SUCCESS) {
+      flow_status = SOX_EOF; /* Client has requested to stop the flow. */
+      break;
+    }
+  }
+
+  for (f = 0; f < max_flows; ++f) {
+    free(chain->ibufc[f]);
+    free(chain->obufc[f]);
+  }
+  free(chain->obufc);
+  free(chain->ibufc);
+
+  return flow_status;
+}
+
+sox_uint64_t sox_effects_clips(sox_effects_chain_t * chain)
+{
+  unsigned i, f;
+  uint64_t clips = 0;
+  for (i = 1; i < chain->length - 1; ++i)
+    for (f = 0; f < chain->effects[i][0].flows; ++f)
+      clips += chain->effects[i][f].clips;
+  return clips;
+}
+
+sox_uint64_t sox_stop_effect(sox_effect_t *effp)
+{
+  unsigned f;
+  uint64_t clips = 0;
+
+  for (f = 0; f < effp->flows; ++f) {
+    effp[f].handler.stop(&effp[f]);
+    clips += effp[f].clips;
+  }
+  return clips;
+}
+
+void sox_push_effect_last(sox_effects_chain_t *chain, sox_effect_t *effp)
+{
+  if (chain->length == chain->table_size) {
+    chain->table_size += EFF_TABLE_STEP;
+    lsx_debug_more("sox_push_effect_last: extending effects table, "
+        "new size = %lu", (unsigned long)chain->table_size);
+    lsx_revalloc(chain->effects, chain->table_size);
+  }
+
+  chain->effects[chain->length++] = effp;
+} /* sox_push_effect_last */
+
+sox_effect_t *sox_pop_effect_last(sox_effects_chain_t *chain)
+{
+  if (chain->length > 0)
+  {
+    sox_effect_t *effp;
+    chain->length--;
+    effp = chain->effects[chain->length];
+    chain->effects[chain->length] = NULL;
+    return effp;
+  }
+  else
+    return NULL;
+} /* sox_pop_effect_last */
+
+/* Free resources related to effect.
+ * Note: This currently closes down the effect which might
+ * not be obvious from name.
+ */
+void sox_delete_effect(sox_effect_t *effp)
+{
+  uint64_t clips;
+  unsigned f;
+
+  if ((clips = sox_stop_effect(effp)) != 0)
+    lsx_warn("%s clipped %" PRIu64 " samples; decrease volume?",
+        effp->handler.name, clips);
+  if (effp->obeg != effp->oend)
+    lsx_debug("output buffer still held %" PRIuPTR " samples; dropped.",
+        (effp->oend - effp->obeg)/effp->out_signal.channels);
+      /* May or may not indicate a problem; it is normal if the user aborted
+         processing, or if an effect like "trim" stopped early. */
+  effp->handler.kill(effp); /* N.B. only one kill; not one per flow */
+  for (f = 0; f < effp->flows; ++f)
+    free(effp[f].priv);
+  free(effp->obuf);
+  free(effp);
+}
+
+void sox_delete_effect_last(sox_effects_chain_t *chain)
+{
+  if (chain->length > 0)
+  {
+    chain->length--;
+    sox_delete_effect(chain->effects[chain->length]);
+    chain->effects[chain->length] = NULL;
+  }
+} /* sox_delete_effect_last */
+
+/* Remove all effects from the chain.
+ * Note: This currently closes down the effect which might
+ * not be obvious from name.
+ */
+void sox_delete_effects(sox_effects_chain_t * chain)
+{
+  size_t e;
+
+  for (e = 0; e < chain->length; ++e) {
+    sox_delete_effect(chain->effects[e]);
+    chain->effects[e] = NULL;
+  }
+  chain->length = 0;
+}
+
+/*----------------------------- Effects library ------------------------------*/
+
+static sox_effect_fn_t s_sox_effect_fns[] = {
+#define EFFECT(f) lsx_##f##_effect_fn,
+#include "effects.h"
+#undef EFFECT
+  NULL
+};
+
+const sox_effect_fn_t*
+sox_get_effect_fns(void)
+{
+    return s_sox_effect_fns;
+}
+
+/* Find a named effect in the effects library */
+sox_effect_handler_t const * sox_find_effect(char const * name)
+{
+  int e;
+  sox_effect_fn_t const * fns = sox_get_effect_fns();
+  for (e = 0; fns[e]; ++e) {
+    const sox_effect_handler_t *eh = fns[e] ();
+    if (eh && eh->name && strcasecmp(eh->name, name) == 0)
+      return eh;                 /* Found it. */
+  }
+  return NULL;
+}
diff --git a/src/sox/effects.h b/src/sox/effects.h
new file mode 100644
index 0000000..8d7025c
--- /dev/null
+++ b/src/sox/effects.h
@@ -0,0 +1,22 @@
+/* This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/* Manually edited for FreeDV to contain just the effects we need */
+
+  EFFECT(bass)
+  EFFECT(highpass)
+  EFFECT(treble)
+  EFFECT(equalizer)
+
diff --git a/src/sox/effects_i.c b/src/sox/effects_i.c
new file mode 100644
index 0000000..e5770a9
--- /dev/null
+++ b/src/sox/effects_i.c
@@ -0,0 +1,379 @@
+/* Implements a libSoX internal interface for implementing effects.
+ * All public functions & data are prefixed with lsx_ .
+ *
+ * Copyright (c) 2005-8 Chris Bagwell and SoX contributors
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#define LSX_EFF_ALIAS
+#include "sox_i.h"
+#include <string.h>
+#include <ctype.h>
+
+int lsx_usage(sox_effect_t * effp)
+{
+  if (effp->handler.usage)
+    lsx_fail("usage: %s", effp->handler.usage);
+  else
+    lsx_fail("this effect takes no parameters");
+  return SOX_EOF;
+}
+
+char * lsx_usage_lines(char * * usage, char const * const * lines, size_t n)
+{
+  if (!*usage) {
+    size_t i, len;
+    for (len = i = 0; i < n; len += strlen(lines[i++]) + 1);
+    *usage = lsx_malloc(len); /* FIXME: this memory will never be freed */
+    strcpy(*usage, lines[0]);
+    for (i = 1; i < n; ++i) {
+      strcat(*usage, "\n");
+      strcat(*usage, lines[i]);
+    }
+  }
+  return *usage;
+}
+
+static lsx_enum_item const s_lsx_wave_enum[] = {
+  LSX_ENUM_ITEM(SOX_WAVE_,SINE)
+  LSX_ENUM_ITEM(SOX_WAVE_,TRIANGLE)
+  {0, 0}};
+
+lsx_enum_item const * lsx_get_wave_enum(void)
+{
+  return s_lsx_wave_enum;
+}
+
+void lsx_generate_wave_table(
+    lsx_wave_t wave_type,
+    sox_data_t data_type,
+    void *table,
+    size_t table_size,
+    double min,
+    double max,
+    double phase)
+{
+  uint32_t t;
+  uint32_t phase_offset = phase / M_PI / 2 * table_size + 0.5;
+
+  for (t = 0; t < table_size; t++)
+  {
+    uint32_t point = (t + phase_offset) % table_size;
+    double d;
+    switch (wave_type)
+    {
+      case SOX_WAVE_SINE:
+      d = (sin((double)point / table_size * 2 * M_PI) + 1) / 2;
+      break;
+
+      case SOX_WAVE_TRIANGLE:
+      d = (double)point * 2 / table_size;
+      switch (4 * point / table_size)
+      {
+        case 0:         d = d + 0.5; break;
+        case 1: case 2: d = 1.5 - d; break;
+        case 3:         d = d - 1.5; break;
+      }
+      break;
+
+      default: /* Oops! FIXME */
+        d = 0.0; /* Make sure we have a value */
+      break;
+    }
+    d  = d * (max - min) + min;
+    switch (data_type)
+    {
+      case SOX_FLOAT:
+        {
+          float *fp = (float *)table;
+          *fp++ = (float)d;
+          table = fp;
+          continue;
+        }
+      case SOX_DOUBLE:
+        {
+          double *dp = (double *)table;
+          *dp++ = d;
+          table = dp;
+          continue;
+        }
+      default: break;
+    }
+    d += d < 0? -0.5 : +0.5;
+    switch (data_type)
+    {
+      case SOX_SHORT:
+        {
+          short *sp = table;
+          *sp++ = (short)d;
+          table = sp;
+          continue;
+        }
+      case SOX_INT:
+        {
+          int *ip = table;
+          *ip++ = (int)d;
+          table = ip;
+          continue;
+        }
+      default: break;
+    }
+  }
+}
+
+/*
+ * lsx_parsesamples
+ *
+ * Parse a string for # of samples.  If string ends with a 's'
+ * then the string is interpreted as a user calculated # of samples.
+ * If string contains ':' or '.' or if it ends with a 't' then its
+ * treated as an amount of time.  This is converted into seconds and
+ * fraction of seconds and then use the sample rate to calculate
+ * # of samples.
+ * Returns NULL on error, pointer to next char to parse otherwise.
+ */
+char const * lsx_parsesamples(sox_rate_t rate, const char *str0, uint64_t *samples, int def)
+{
+  int i, found_samples = 0, found_time = 0;
+  char const * end;
+  char const * pos;
+  sox_bool found_colon, found_dot;
+  char * str = (char *)str0;
+
+  for (;*str == ' '; ++str);
+  for (end = str; *end && strchr("0123456789:.ets", *end); ++end);
+  if (end == str)
+    return NULL;
+
+  pos = strchr(str, ':');
+  found_colon = pos && pos < end;
+
+  pos = strchr(str, '.');
+  found_dot = pos && pos < end;
+
+  if (found_colon || found_dot || *(end-1) == 't')
+    found_time = 1;
+  else if (*(end-1) == 's')
+    found_samples = 1;
+
+  if (found_time || (def == 't' && !found_samples)) {
+    for (*samples = 0, i = 0; *str != '.' && i < 3; ++i) {
+      char * last_str = str;
+      long part = strtol(str, &str, 10);
+      if (!i && str == last_str)
+        return NULL;
+      *samples += rate * part;
+      if (i < 2) {
+        if (*str != ':')
+          break;
+        ++str;
+        *samples *= 60;
+      }
+    }
+    if (*str == '.') {
+      char * last_str = str;
+      double part = strtod(str, &str);
+      if (str == last_str)
+        return NULL;
+      *samples += rate * part + .5;
+    }
+    return *str == 't'? str + 1 : str;
+  }
+  {
+    char * last_str = str;
+    double part = strtod(str, &str);
+    if (str == last_str)
+      return NULL;
+    *samples = part + .5;
+    return *str == 's'? str + 1 : str;
+  }
+}
+
+#if 0
+
+#include <assert.h>
+
+#define TEST(st, samp, len) \
+  str = st; \
+  next = lsx_parsesamples(10000, str, &samples, 't'); \
+  assert(samples == samp && next == str + len);
+
+int main(int argc, char * * argv)
+{
+  char const * str, * next;
+  uint64_t samples;
+
+  TEST("0"  , 0, 1)
+  TEST("1" , 10000, 1)
+
+  TEST("0s" , 0, 2)
+  TEST("0s,", 0, 2)
+  TEST("0s/", 0, 2)
+  TEST("0s@", 0, 2)
+
+  TEST("0t" , 0, 2)
+  TEST("0t,", 0, 2)
+  TEST("0t/", 0, 2)
+  TEST("0t@", 0, 2)
+
+  TEST("1s" , 1, 2)
+  TEST("1s,", 1, 2)
+  TEST("1s/", 1, 2)
+  TEST("1s@", 1, 2)
+  TEST(" 01s" , 1, 4)
+  TEST("1e6s" , 1000000, 4)
+
+  TEST("1t" , 10000, 2)
+  TEST("1t,", 10000, 2)
+  TEST("1t/", 10000, 2)
+  TEST("1t@", 10000, 2)
+  TEST("1.1t" , 11000, 4)
+  TEST("1.1t,", 11000, 4)
+  TEST("1.1t/", 11000, 4)
+  TEST("1.1t@", 11000, 4)
+  TEST("1e6t" , 10000, 1)
+
+  TEST(".0", 0, 2)
+  TEST("0.0", 0, 3)
+  TEST("0:0.0", 0, 5)
+  TEST("0:0:0.0", 0, 7)
+
+  TEST(".1", 1000, 2)
+  TEST(".10", 1000, 3)
+  TEST("0.1", 1000, 3)
+  TEST("1.1", 11000, 3)
+  TEST("1:1.1", 611000, 5)
+  TEST("1:1:1.1", 36611000, 7)
+  TEST("1:1", 610000, 3)
+  TEST("1:01", 610000, 4)
+  TEST("1:1:1", 36610000, 5)
+  TEST("1:", 600000, 2)
+  TEST("1::", 36000000, 3)
+
+  TEST("0.444444", 4444, 8)
+  TEST("0.555555", 5556, 8)
+
+  assert(!lsx_parsesamples(10000, "x", &samples, 't'));
+  return 0;
+}
+#endif 
+
+/* a note is given as an int,
+ * 0   => 440 Hz = A
+ * >0  => number of half notes 'up',
+ * <0  => number of half notes down,
+ * example 12 => A of next octave, 880Hz
+ *
+ * calculated by freq = 440Hz * 2**(note/12)
+ */
+static double calc_note_freq(double note, int key)
+{
+  if (key != INT_MAX) {                         /* Just intonation. */
+    static const int n[] = {16, 9, 6, 5, 4, 7}; /* Numerator. */
+    static const int d[] = {15, 8, 5, 4, 3, 5}; /* Denominator. */
+    static double j[13];                        /* Just semitones */
+    int i, m = floor(note);
+
+    if (!j[1]) for (i = 1; i <= 12; ++i)
+      j[i] = i <= 6? log((double)n[i - 1] / d[i - 1]) / log(2.) : 1 - j[12 - i];
+    note -= m;
+    m -= key = m - ((INT_MAX / 2 - ((INT_MAX / 2) % 12) + m - key) % 12);
+    return 440 * pow(2., key / 12. + j[m] + (j[m + 1] - j[m]) * note);
+  }
+  return 440 * pow(2., note / 12);
+}
+
+int lsx_parse_note(char const * text, char * * end_ptr)
+{
+  int result = INT_MAX;
+
+  if (*text >= 'A' && *text <= 'G') {
+    result = (int)(5/3. * (*text++ - 'A') + 9.5) % 12 - 9;
+    if (*text == 'b') {--result; ++text;}
+    else if (*text == '#') {++result; ++text;}
+    if (isdigit((unsigned char)*text))
+      result += 12 * (*text++ - '4'); 
+  }
+  *end_ptr = (char *)text;
+  return result;
+}
+
+/* Read string 'text' and convert to frequency.
+ * 'text' can be a positive number which is the frequency in Hz.
+ * If 'text' starts with a '%' and a following number the corresponding
+ * note is calculated.
+ * Return -1 on error.
+ */
+double lsx_parse_frequency_k(char const * text, char * * end_ptr, int key)
+{
+  double result;
+
+  if (*text == '%') {
+    result = strtod(text + 1, end_ptr);
+    if (*end_ptr == text + 1)
+      return -1;
+    return calc_note_freq(result, key);
+  }
+  if (*text >= 'A' && *text <= 'G') {
+    int result2 = lsx_parse_note(text, end_ptr);
+    return result2 == INT_MAX? - 1 : calc_note_freq((double)result2, key);
+  }
+  result = strtod(text, end_ptr);
+  if (end_ptr) {
+    if (*end_ptr == text)
+      return -1;
+    if (**end_ptr == 'k') {
+      result *= 1000;
+      ++*end_ptr;
+    }
+  }
+  return result < 0 ? -1 : result;
+}
+
+FILE * lsx_open_input_file(sox_effect_t * effp, char const * filename)
+{
+  FILE * file;
+
+  if (!filename || !strcmp(filename, "-")) {
+    if (effp->global_info->global_info->stdin_in_use_by) {
+      lsx_fail("stdin already in use by `%s'", effp->global_info->global_info->stdin_in_use_by);
+      return NULL;
+    }
+    effp->global_info->global_info->stdin_in_use_by = effp->handler.name;
+    file = stdin;
+  }
+  else if (!(file = fopen(filename, "r"))) {
+    lsx_fail("couldn't open file %s: %s", filename, strerror(errno));
+    return NULL;
+  }
+  return file;
+}
+
+int lsx_effects_init(void)
+{
+  #ifndef __FREEDV__
+  init_fft_cache();
+  #endif
+  return SOX_SUCCESS;
+}
+
+int lsx_effects_quit(void)
+{
+  #ifndef __FREEDV__
+  clear_fft_cache();
+  #endif
+  return SOX_SUCCESS;
+}
diff --git a/src/sox/formats_i.c b/src/sox/formats_i.c
new file mode 100644
index 0000000..17c4061
--- /dev/null
+++ b/src/sox/formats_i.c
@@ -0,0 +1,487 @@
+/* Implements a libSoX internal interface for use in implementing file formats.
+ * All public functions & data are prefixed with lsx_ .
+ *
+ * (c) 2005-8 Chris Bagwell and SoX contributors
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "sox_i.h"
+#include <string.h>
+#include <sys/stat.h>
+#include <stdarg.h>
+
+void lsx_fail_errno(sox_format_t * ft, int sox_errno, const char *fmt, ...)
+{
+  va_list args;
+
+  ft->sox_errno = sox_errno;
+
+  va_start(args, fmt);
+#ifdef HAVE_VSNPRINTF
+  vsnprintf(ft->sox_errstr, sizeof(ft->sox_errstr), fmt, args);
+#else
+  vsprintf(ft->sox_errstr, fmt, args);
+#endif
+  va_end(args);
+  ft->sox_errstr[255] = '\0';
+}
+
+void lsx_set_signal_defaults(sox_format_t * ft)
+{
+  if (!ft->signal.rate     ) ft->signal.rate      = SOX_DEFAULT_RATE;
+  if (!ft->signal.precision) ft->signal.precision = SOX_DEFAULT_PRECISION;
+  if (!ft->signal.channels ) ft->signal.channels  = SOX_DEFAULT_CHANNELS;
+
+  if (!ft->encoding.bits_per_sample)
+    ft->encoding.bits_per_sample = ft->signal.precision;
+  if (ft->encoding.encoding == SOX_ENCODING_UNKNOWN)
+    ft->encoding.encoding = SOX_ENCODING_SIGN2;
+}
+
+#ifndef __FREEDV__
+int lsx_check_read_params(sox_format_t * ft, unsigned channels,
+    sox_rate_t rate, sox_encoding_t encoding, unsigned bits_per_sample,
+    uint64_t num_samples, sox_bool check_length)
+{
+  ft->signal.length = ft->signal.length == SOX_IGNORE_LENGTH? SOX_UNSPEC : num_samples;
+
+  if (ft->seekable)
+    ft->data_start = lsx_tell(ft);
+
+  if (channels && ft->signal.channels && ft->signal.channels != channels)
+    lsx_warn("`%s': overriding number of channels", ft->filename);
+  else ft->signal.channels = channels;
+
+  if (rate && ft->signal.rate && ft->signal.rate != rate)
+    lsx_warn("`%s': overriding sample rate", ft->filename);
+  else ft->signal.rate = rate;
+
+  if (encoding && ft->encoding.encoding && ft->encoding.encoding != encoding)
+    lsx_warn("`%s': overriding encoding type", ft->filename);
+  else ft->encoding.encoding = encoding;
+
+  if (bits_per_sample && ft->encoding.bits_per_sample && ft->encoding.bits_per_sample != bits_per_sample)
+    lsx_warn("`%s': overriding encoding size", ft->filename);
+  ft->encoding.bits_per_sample = bits_per_sample;
+
+  if (check_length && ft->encoding.bits_per_sample && lsx_filelength(ft)) {
+    uint64_t calculated_length = div_bits(lsx_filelength(ft) - ft->data_start, ft->encoding.bits_per_sample);
+    if (!ft->signal.length)
+      ft->signal.length = calculated_length;
+    else if (num_samples != calculated_length)
+      lsx_warn("`%s': file header gives the total number of samples as %" PRIu64 " but file length indicates the number is in fact %" PRIu64, ft->filename, num_samples, calculated_length);
+  }
+
+  if (sox_precision(ft->encoding.encoding, ft->encoding.bits_per_sample))
+    return SOX_SUCCESS;
+  lsx_fail_errno(ft, EINVAL, "invalid format for this file type");
+  return SOX_EOF;
+}
+#endif
+
+/* Read in a buffer of data of length len bytes.
+ * Returns number of bytes read.
+ */
+size_t lsx_readbuf(sox_format_t * ft, void *buf, size_t len)
+{
+  size_t ret = fread(buf, (size_t) 1, len, (FILE*)ft->fp);
+  if (ret != len && ferror((FILE*)ft->fp))
+    lsx_fail_errno(ft, errno, "lsx_readbuf");
+  ft->tell_off += ret;
+  return ret;
+}
+
+/* Skip input without seeking. */
+int lsx_skipbytes(sox_format_t * ft, size_t n)
+{
+  unsigned char trash;
+
+  while (n--)
+    if (lsx_readb(ft, &trash) == SOX_EOF)
+      return (SOX_EOF);
+
+  return (SOX_SUCCESS);
+}
+
+/* Pad output. */
+int lsx_padbytes(sox_format_t * ft, size_t n)
+{
+  while (n--)
+    if (lsx_writeb(ft, '\0') == SOX_EOF)
+      return (SOX_EOF);
+
+  return (SOX_SUCCESS);
+}
+
+/* Write a buffer of data of length bytes.
+ * Returns number of bytes written.
+ */
+size_t lsx_writebuf(sox_format_t * ft, void const * buf, size_t len)
+{
+  size_t ret = fwrite(buf, (size_t) 1, len, (FILE*)ft->fp);
+  if (ret != len) {
+    lsx_fail_errno(ft, errno, "error writing output file");
+    clearerr((FILE*)ft->fp); /* Allows us to seek back to write header */
+  }
+  ft->tell_off += ret;
+  return ret;
+}
+
+uint64_t lsx_filelength(sox_format_t * ft)
+{
+  struct stat st;
+  int ret = fstat(fileno((FILE*)ft->fp), &st);
+
+  return (!ret && (st.st_mode & S_IFREG))? (uint64_t)st.st_size : 0;
+}
+
+int lsx_flush(sox_format_t * ft)
+{
+  return fflush((FILE*)ft->fp);
+}
+
+off_t lsx_tell(sox_format_t * ft)
+{
+  return ft->seekable? (off_t)ftello((FILE*)ft->fp) : (off_t)ft->tell_off;
+}
+
+int lsx_eof(sox_format_t * ft)
+{
+  return feof((FILE*)ft->fp);
+}
+
+int lsx_error(sox_format_t * ft)
+{
+  return ferror((FILE*)ft->fp);
+}
+
+void lsx_rewind(sox_format_t * ft)
+{
+  rewind((FILE*)ft->fp);
+  ft->tell_off = 0;
+}
+
+void lsx_clearerr(sox_format_t * ft)
+{
+  clearerr((FILE*)ft->fp);
+  ft->sox_errno = 0;
+}
+
+int lsx_unreadb(sox_format_t * ft, unsigned b)
+{
+  return ungetc((int)b, ft->fp);
+}
+
+/* Implements traditional fseek() behavior.  Meant to abstract out
+ * file operations so that they could one day also work on memory
+ * buffers.
+ *
+ * N.B. Can only seek forwards on non-seekable streams!
+ */
+int lsx_seeki(sox_format_t * ft, off_t offset, int whence)
+{
+    if (ft->seekable == 0) {
+        /* If a stream peel off chars else EPERM */
+        if (whence == SEEK_CUR) {
+            while (offset > 0 && !feof((FILE*)ft->fp)) {
+                getc((FILE*)ft->fp);
+                offset--;
+                ++ft->tell_off;
+            }
+            if (offset)
+                lsx_fail_errno(ft,SOX_EOF, "offset past EOF");
+            else
+                ft->sox_errno = SOX_SUCCESS;
+        } else
+            lsx_fail_errno(ft,SOX_EPERM, "file not seekable");
+    } else {
+        if (fseeko((FILE*)ft->fp, offset, whence) == -1)
+            lsx_fail_errno(ft,errno, "%s", strerror(errno));
+        else
+            ft->sox_errno = SOX_SUCCESS;
+    }
+    return ft->sox_errno;
+}
+
+int lsx_offset_seek(sox_format_t * ft, off_t byte_offset, off_t to_sample)
+{
+  double wide_sample = to_sample - (to_sample % ft->signal.channels);
+  double to_d = wide_sample * ft->encoding.bits_per_sample / 8;
+  off_t to = to_d;
+  return (to != to_d)? SOX_EOF : lsx_seeki(ft, (byte_offset + to), SEEK_SET);
+}
+
+/* Read and write known datatypes in "machine format".  Swap if indicated.
+ * They all return SOX_EOF on error and SOX_SUCCESS on success.
+ */
+/* Read n-char string (and possibly null-terminating).
+ * Stop reading and null-terminate string if either a 0 or \n is reached.
+ */
+int lsx_reads(sox_format_t * ft, char *c, size_t len)
+{
+    char *sc;
+    char in;
+
+    sc = c;
+    do
+    {
+        if (lsx_readbuf(ft, &in, (size_t)1) != 1)
+        {
+            *sc = 0;
+            return (SOX_EOF);
+        }
+        if (in == 0 || in == '\n')
+            break;
+
+        *sc = in;
+        sc++;
+    } while (sc - c < (ptrdiff_t)len);
+    *sc = 0;
+    return(SOX_SUCCESS);
+}
+
+/* Write null-terminated string (without \0). */
+int lsx_writes(sox_format_t * ft, char const * c)
+{
+        if (lsx_writebuf(ft, c, strlen(c)) != strlen(c))
+                return(SOX_EOF);
+        return(SOX_SUCCESS);
+}
+
+/* return swapped 32-bit float */
+static void lsx_swapf(float * f)
+{
+    union {
+        uint32_t dw;
+        float f;
+    } u;
+
+    u.f= *f;
+    u.dw= (u.dw>>24) | ((u.dw>>8)&0xff00) | ((u.dw<<8)&0xff0000) | (u.dw<<24);
+    *f = u.f;
+}
+
+static void swap(void * data, size_t len)
+{
+  uint8_t * bytes = (uint8_t *)data;
+  size_t i;
+
+  for (i = 0; i < len / 2; ++i) {
+    char tmp = bytes[i];
+    bytes[i] = bytes[len - 1 - i];
+    bytes[len - 1 - i] = tmp;
+  }
+}
+
+static double lsx_swapdf(double data)
+{
+  swap(&data, sizeof(data));
+  return data;
+}
+
+static uint64_t lsx_swapqw(uint64_t data)
+{
+  swap(&data, sizeof(data));
+  return data;
+}
+
+/* Lookup table to reverse the bit order of a byte. ie MSB become LSB */
+static uint8_t const cswap[256] = {
+  0x00, 0x80, 0x40, 0xC0, 0x20, 0xA0, 0x60, 0xE0, 0x10, 0x90, 0x50, 0xD0,
+  0x30, 0xB0, 0x70, 0xF0, 0x08, 0x88, 0x48, 0xC8, 0x28, 0xA8, 0x68, 0xE8,
+  0x18, 0x98, 0x58, 0xD8, 0x38, 0xB8, 0x78, 0xF8, 0x04, 0x84, 0x44, 0xC4,
+  0x24, 0xA4, 0x64, 0xE4, 0x14, 0x94, 0x54, 0xD4, 0x34, 0xB4, 0x74, 0xF4,
+  0x0C, 0x8C, 0x4C, 0xCC, 0x2C, 0xAC, 0x6C, 0xEC, 0x1C, 0x9C, 0x5C, 0xDC,
+  0x3C, 0xBC, 0x7C, 0xFC, 0x02, 0x82, 0x42, 0xC2, 0x22, 0xA2, 0x62, 0xE2,
+  0x12, 0x92, 0x52, 0xD2, 0x32, 0xB2, 0x72, 0xF2, 0x0A, 0x8A, 0x4A, 0xCA,
+  0x2A, 0xAA, 0x6A, 0xEA, 0x1A, 0x9A, 0x5A, 0xDA, 0x3A, 0xBA, 0x7A, 0xFA,
+  0x06, 0x86, 0x46, 0xC6, 0x26, 0xA6, 0x66, 0xE6, 0x16, 0x96, 0x56, 0xD6,
+  0x36, 0xB6, 0x76, 0xF6, 0x0E, 0x8E, 0x4E, 0xCE, 0x2E, 0xAE, 0x6E, 0xEE,
+  0x1E, 0x9E, 0x5E, 0xDE, 0x3E, 0xBE, 0x7E, 0xFE, 0x01, 0x81, 0x41, 0xC1,
+  0x21, 0xA1, 0x61, 0xE1, 0x11, 0x91, 0x51, 0xD1, 0x31, 0xB1, 0x71, 0xF1,
+  0x09, 0x89, 0x49, 0xC9, 0x29, 0xA9, 0x69, 0xE9, 0x19, 0x99, 0x59, 0xD9,
+  0x39, 0xB9, 0x79, 0xF9, 0x05, 0x85, 0x45, 0xC5, 0x25, 0xA5, 0x65, 0xE5,
+  0x15, 0x95, 0x55, 0xD5, 0x35, 0xB5, 0x75, 0xF5, 0x0D, 0x8D, 0x4D, 0xCD,
+  0x2D, 0xAD, 0x6D, 0xED, 0x1D, 0x9D, 0x5D, 0xDD, 0x3D, 0xBD, 0x7D, 0xFD,
+  0x03, 0x83, 0x43, 0xC3, 0x23, 0xA3, 0x63, 0xE3, 0x13, 0x93, 0x53, 0xD3,
+  0x33, 0xB3, 0x73, 0xF3, 0x0B, 0x8B, 0x4B, 0xCB, 0x2B, 0xAB, 0x6B, 0xEB,
+  0x1B, 0x9B, 0x5B, 0xDB, 0x3B, 0xBB, 0x7B, 0xFB, 0x07, 0x87, 0x47, 0xC7,
+  0x27, 0xA7, 0x67, 0xE7, 0x17, 0x97, 0x57, 0xD7, 0x37, 0xB7, 0x77, 0xF7,
+  0x0F, 0x8F, 0x4F, 0xCF, 0x2F, 0xAF, 0x6F, 0xEF, 0x1F, 0x9F, 0x5F, 0xDF,
+  0x3F, 0xBF, 0x7F, 0xFF
+};
+
+/* Utilities to byte-swap values, use libc optimized macros if possible  */
+#define TWIDDLE_BYTE(ub, type) \
+  do { \
+    if (ft->encoding.reverse_bits) \
+      ub = cswap[ub]; \
+    if (ft->encoding.reverse_nibbles) \
+      ub = ((ub & 15) << 4) | (ub >> 4); \
+  } while (0);
+
+#define TWIDDLE_WORD(uw, type) \
+  if (ft->encoding.reverse_bytes) \
+    uw = lsx_swap ## type(uw);
+
+#define TWIDDLE_FLOAT(f, type) \
+  if (ft->encoding.reverse_bytes) \
+    lsx_swapf(&f);
+
+/* N.B. This macro doesn't work for unaligned types (e.g. 3-byte
+   types). */
+#define READ_FUNC(type, size, ctype, twiddle) \
+  size_t lsx_read_ ## type ## _buf( \
+      sox_format_t * ft, ctype *buf, size_t len) \
+  { \
+    size_t n, nread; \
+    nread = lsx_readbuf(ft, buf, len * size) / size; \
+    for (n = 0; n < nread; n++) \
+      twiddle(buf[n], type); \
+    return nread; \
+  }
+
+/* Unpack a 3-byte value from a uint8_t * */
+#define sox_unpack3(p) (ft->encoding.reverse_bytes == MACHINE_IS_BIGENDIAN? \
+  ((p)[0] | ((p)[1] << 8) | ((p)[2] << 16)) : \
+  ((p)[2] | ((p)[1] << 8) | ((p)[0] << 16)))
+
+/* This (slower) macro works for unaligned types (e.g. 3-byte types)
+   that need to be unpacked. */
+#define READ_FUNC_UNPACK(type, size, ctype, twiddle) \
+  size_t lsx_read_ ## type ## _buf( \
+      sox_format_t * ft, ctype *buf, size_t len) \
+  { \
+    size_t n, nread; \
+    uint8_t *data = lsx_malloc(size * len); \
+    nread = lsx_readbuf(ft, data, len * size) / size; \
+    for (n = 0; n < nread; n++) \
+      buf[n] = sox_unpack ## size(data + n * size); \
+    free(data); \
+    return n; \
+  }
+
+READ_FUNC(b, 1, uint8_t, TWIDDLE_BYTE)
+READ_FUNC(w, 2, uint16_t, TWIDDLE_WORD)
+READ_FUNC_UNPACK(3, 3, sox_uint24_t, TWIDDLE_WORD)
+READ_FUNC(dw, 4, uint32_t, TWIDDLE_WORD)
+READ_FUNC(qw, 8, uint64_t, TWIDDLE_WORD)
+READ_FUNC(f, sizeof(float), float, TWIDDLE_FLOAT)
+READ_FUNC(df, sizeof(double), double, TWIDDLE_WORD)
+
+#define READ1_FUNC(type, ctype) \
+int lsx_read ## type(sox_format_t * ft, ctype * datum) { \
+  if (lsx_read_ ## type ## _buf(ft, datum, (size_t)1) == 1) \
+    return SOX_SUCCESS; \
+  if (!lsx_error(ft)) \
+    lsx_fail_errno(ft, errno, premature_eof); \
+  return SOX_EOF; \
+}
+
+static char const premature_eof[] = "premature EOF";
+
+READ1_FUNC(b,  uint8_t)
+READ1_FUNC(w,  uint16_t)
+READ1_FUNC(3,  sox_uint24_t)
+READ1_FUNC(dw, uint32_t)
+READ1_FUNC(qw, uint64_t)
+READ1_FUNC(f,  float)
+READ1_FUNC(df, double)
+
+int lsx_readchars(sox_format_t * ft, char * chars, size_t len)
+{
+  size_t ret = lsx_readbuf(ft, chars, len);
+  if (ret == len)
+    return SOX_SUCCESS;
+  if (!lsx_error(ft))
+    lsx_fail_errno(ft, errno, premature_eof);
+  return SOX_EOF;
+}
+
+/* N.B. This macro doesn't work for unaligned types (e.g. 3-byte
+   types). */
+#define WRITE_FUNC(type, size, ctype, twiddle) \
+  size_t lsx_write_ ## type ## _buf( \
+      sox_format_t * ft, ctype *buf, size_t len) \
+  { \
+    size_t n, nwritten; \
+    for (n = 0; n < len; n++) \
+      twiddle(buf[n], type); \
+    nwritten = lsx_writebuf(ft, buf, len * size); \
+    return nwritten / size; \
+  }
+
+/* Pack a 3-byte value to a uint8_t * */
+#define sox_pack3(p, v) do {if (ft->encoding.reverse_bytes == MACHINE_IS_BIGENDIAN)\
+{(p)[0] = v & 0xff; (p)[1] = (v >> 8) & 0xff; (p)[2] = (v >> 16) & 0xff;} else \
+{(p)[2] = v & 0xff; (p)[1] = (v >> 8) & 0xff; (p)[0] = (v >> 16) & 0xff;} \
+} while (0)
+
+/* This (slower) macro works for unaligned types (e.g. 3-byte types)
+   that need to be packed. */
+#define WRITE_FUNC_PACK(type, size, ctype, twiddle) \
+  size_t lsx_write_ ## type ## _buf( \
+      sox_format_t * ft, ctype *buf, size_t len) \
+  { \
+    size_t n, nwritten; \
+    uint8_t *data = lsx_malloc(size * len); \
+    for (n = 0; n < len; n++) \
+      sox_pack ## size(data + n * size, buf[n]); \
+    nwritten = lsx_writebuf(ft, data, len * size); \
+    free(data); \
+    return nwritten / size; \
+  }
+
+WRITE_FUNC(b, 1, uint8_t, TWIDDLE_BYTE)
+WRITE_FUNC(w, 2, uint16_t, TWIDDLE_WORD)
+WRITE_FUNC_PACK(3, 3, sox_uint24_t, TWIDDLE_WORD)
+WRITE_FUNC(dw, 4, uint32_t, TWIDDLE_WORD)
+WRITE_FUNC(qw, 8, uint64_t, TWIDDLE_WORD)
+WRITE_FUNC(f, sizeof(float), float, TWIDDLE_FLOAT)
+WRITE_FUNC(df, sizeof(double), double, TWIDDLE_WORD)
+
+#define WRITE1U_FUNC(type, ctype) \
+  int lsx_write ## type(sox_format_t * ft, unsigned d) \
+  { ctype datum = (ctype)d; \
+    return lsx_write_ ## type ## _buf(ft, &datum, (size_t)1) == 1 ? SOX_SUCCESS : SOX_EOF; \
+  }
+
+#define WRITE1S_FUNC(type, ctype) \
+  int lsx_writes ## type(sox_format_t * ft, signed d) \
+  { ctype datum = (ctype)d; \
+    return lsx_write_ ## type ## _buf(ft, &datum, (size_t)1) == 1 ? SOX_SUCCESS : SOX_EOF; \
+  }
+
+#define WRITE1_FUNC(type, ctype) \
+  int lsx_write ## type(sox_format_t * ft, ctype datum) \
+  { \
+    return lsx_write_ ## type ## _buf(ft, &datum, (size_t)1) == 1 ? SOX_SUCCESS : SOX_EOF; \
+  }
+
+WRITE1U_FUNC(b, uint8_t)
+WRITE1U_FUNC(w, uint16_t)
+WRITE1U_FUNC(3, sox_uint24_t)
+WRITE1U_FUNC(dw, uint32_t)
+WRITE1_FUNC(qw, uint64_t)
+WRITE1S_FUNC(b, uint8_t)
+WRITE1S_FUNC(w, uint16_t)
+WRITE1_FUNC(df, double)
+
+int lsx_writef(sox_format_t * ft, double datum)
+{
+  float f = datum;
+  return lsx_write_f_buf(ft, &f, (size_t) 1) == 1 ? SOX_SUCCESS : SOX_EOF;
+}
diff --git a/src/sox/libsox.c b/src/sox/libsox.c
new file mode 100644
index 0000000..4362025
--- /dev/null
+++ b/src/sox/libsox.c
@@ -0,0 +1,225 @@
+/* Implements the public API for libSoX general functions
+ * All public functions & data are prefixed with sox_ .
+ *
+ * (c) 2006-8 Chris Bagwell and SoX contributors
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "sox_i.h"
+#include <string.h>
+
+const char *sox_version(void)
+{
+  static char versionstr[20];
+
+  sprintf(versionstr, "%d.%d.%d",
+          (SOX_LIB_VERSION_CODE & 0xff0000) >> 16,
+          (SOX_LIB_VERSION_CODE & 0x00ff00) >> 8,
+          (SOX_LIB_VERSION_CODE & 0x0000ff));
+  return(versionstr);
+}
+
+sox_version_info_t const * sox_version_info(void)
+{
+#define STRINGIZE1(x) #x
+#define STRINGIZE(x) STRINGIZE1(x)
+    static char arch[30];
+    static sox_version_info_t info = {
+        /* size */
+        sizeof(sox_version_info_t),
+        /* flags */
+        (sox_version_flags_t)(
+#if HAVE_POPEN
+        sox_version_have_popen +
+#endif
+#if  HAVE_MAGIC
+        sox_version_have_magic +
+#endif
+#if HAVE_OPENMP
+        sox_version_have_threads +
+#endif
+#ifdef HAVE_FMEMOPEN
+        sox_version_have_memopen +
+#endif
+        sox_version_none),
+        /* version_code */
+        SOX_LIB_VERSION_CODE,
+        /* version */
+        NULL,
+        /* sox_version_extra */
+#ifdef PACKAGE_EXTRA
+        PACKAGE_EXTRA,
+#else
+        NULL,
+#endif
+        /* sox_time */
+        __DATE__ " " __TIME__,
+        /* sox_distro */
+#ifdef DISTRO
+        DISTRO,
+#else
+        NULL,
+#endif
+        /* sox_compiler */
+#if defined __GNUC__
+        "gcc " __VERSION__,
+#elif defined _MSC_VER
+        "msvc " STRINGIZE(_MSC_FULL_VER),
+#elif defined __SUNPRO_C
+    fprintf(file, "sun c " STRINGIZE(__SUNPRO_C),
+#else
+        NULL,
+#endif
+        /* sox_arch */
+        NULL
+    };
+
+    if (!info.version)
+    {
+        info.version = sox_version();
+    }
+
+    if (!info.arch)
+    {
+        snprintf(arch, sizeof(arch),
+            "%" PRIuPTR "%" PRIuPTR "%" PRIuPTR "%" PRIuPTR
+            " %" PRIuPTR "%" PRIuPTR " %" PRIuPTR "%" PRIuPTR " %c %s",
+            sizeof(char), sizeof(short), sizeof(long), sizeof(off_t),
+            sizeof(float), sizeof(double), sizeof(int *), sizeof(int (*)(void)),
+            MACHINE_IS_BIGENDIAN ? 'B' : 'L',
+            (info.flags & sox_version_have_threads) ? "OMP" : "");
+        arch[sizeof(arch) - 1] = 0;
+        info.arch = arch;
+    }
+
+    return &info;
+}
+
+/* Default routine to output messages; can be overridden */
+static void output_message(
+    unsigned level, const char *filename, const char *fmt, va_list ap)
+{
+  if (sox_globals.verbosity >= level) {
+    char base_name[128];
+    sox_basename(base_name, sizeof(base_name), filename);
+    fprintf(stderr, "%s: ", base_name);
+    vfprintf(stderr, fmt, ap);
+    fprintf(stderr, "\n");
+  }
+}
+
+static sox_globals_t s_sox_globals = {
+  2,               /* unsigned     verbosity */
+  output_message,  /* sox_output_message_handler */
+  sox_false,       /* sox_bool     repeatable */
+  8192,            /* size_t       bufsiz */
+  0,               /* size_t       input_bufsiz */
+  0,               /* int32_t      ranqd1 */
+  NULL,            /* char const * stdin_in_use_by */
+  NULL,            /* char const * stdout_in_use_by */
+  NULL,            /* char const * subsystem */
+  NULL,            /* char       * tmp_path */
+  sox_false,       /* sox_bool     use_magic */
+  sox_false        /* sox_bool     use_threads */
+};
+
+sox_globals_t * sox_get_globals(void)
+{
+    return &s_sox_globals;
+}
+
+/* FIXME: Not thread safe using globals */
+static sox_effects_globals_t s_sox_effects_globals =
+    {sox_plot_off, &s_sox_globals};
+
+sox_effects_globals_t *
+sox_get_effects_globals(void)
+{
+    return &s_sox_effects_globals;
+}
+
+char const * sox_strerror(int sox_errno)
+{
+  static char const * const errors[] = {
+    "Invalid Audio Header",
+    "Unsupported data format",
+    "Can't allocate memory",
+    "Operation not permitted",
+    "Operation not supported",
+    "Invalid argument",
+  };
+  if (sox_errno < SOX_EHDR)
+    return strerror(sox_errno);
+  sox_errno -= SOX_EHDR;
+  if (sox_errno < 0 || (size_t)sox_errno >= array_length(errors))
+    return "Unknown error";
+  return errors[sox_errno];
+}
+
+size_t sox_basename(char * base_buffer, size_t base_buffer_len, const char * filename)
+{
+  if (!base_buffer || !base_buffer_len)
+  {
+    return 0;
+  }
+  else
+  {
+    char const * slash_pos = LAST_SLASH(filename);
+    char const * base_name = slash_pos ? slash_pos + 1 : filename;
+    char const * dot_pos   = strrchr(base_name, '.');
+    size_t i, len;
+    dot_pos = dot_pos ? dot_pos : base_name + strlen(base_name);
+    len = dot_pos - base_name;
+    len = min(len, base_buffer_len - 1);
+    for (i = 0; i < len; i++)
+    {
+      base_buffer[i] = base_name[i];
+    }
+    base_buffer[i] = 0;
+    return i;
+  }
+}
+
+#define SOX_MESSAGE_FUNCTION(name,level) \
+void name(char const * fmt, ...) { \
+  va_list ap; \
+  va_start(ap, fmt); \
+  if (sox_globals.output_message_handler) \
+    (*sox_globals.output_message_handler)(level,sox_globals.subsystem,fmt,ap); \
+  va_end(ap); \
+}
+
+SOX_MESSAGE_FUNCTION(lsx_fail_impl  , 1)
+SOX_MESSAGE_FUNCTION(lsx_warn_impl  , 2)
+SOX_MESSAGE_FUNCTION(lsx_report_impl, 3)
+SOX_MESSAGE_FUNCTION(lsx_debug_impl , 4)
+SOX_MESSAGE_FUNCTION(lsx_debug_more_impl , 5)
+SOX_MESSAGE_FUNCTION(lsx_debug_most_impl , 6)
+
+#undef SOX_MESSAGE_FUNCTION
+
+int sox_init(void)
+{
+  return lsx_effects_init();
+}
+
+int sox_quit(void)
+{
+  #ifndef __FREEDV__
+  sox_format_quit();
+  #endif
+  return lsx_effects_quit();
+}
diff --git a/src/sox/sox.h b/src/sox/sox.h
new file mode 100644
index 0000000..0537255
--- /dev/null
+++ b/src/sox/sox.h
@@ -0,0 +1,2608 @@
+/* libSoX Library Public Interface
+ *
+ * Copyright 1999-2011 Chris Bagwell and SoX Contributors.
+ *
+ * This source code is freely redistributable and may be used for
+ * any purpose.  This copyright notice must be maintained.
+ * Chris Bagwell And SoX Contributors are not responsible for
+ * the consequences of using this software.
+ */
+
+/** @file
+Contains the interface exposed to clients of the libSoX library.
+Symbols starting with "sox_" or "SOX_" are part of the public interface for
+libSoX clients (applications that consume libSoX). Symbols starting with
+"lsx_" or "LSX_" are internal use by libSoX and plugins.
+LSX_ and lsx_ symbols should not be used by libSoX-based applications.
+*/
+
+#ifndef SOX_H
+#define SOX_H /**< Client API: This macro is defined if sox.h has been included. */
+
+#include <limits.h>
+#include <stdarg.h>
+#include <stddef.h>
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/* Suppress warnings from use of type long long. */
+#if defined __GNUC__
+#pragma GCC system_header
+#endif
+
+/*****************************************************************************
+API decoration macros:
+Mostly for documentation purposes. For some compilers, decorations also affect
+code generation, influence compiler warnings or activate compiler
+optimizations.
+*****************************************************************************/
+
+/**
+Plugins API:
+Attribute required on all functions exported by libSoX and on all function
+pointer types used by the libSoX API.
+*/
+#ifdef __GNUC__
+#define LSX_API  __attribute__ ((cdecl)) /* libSoX function */
+#elif _MSC_VER
+#define LSX_API  __cdecl /* libSoX function */
+#else
+#define LSX_API /* libSoX function */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter or local variable to suppress warnings about
+the variable being unused (especially in macro-generated code).
+*/
+#ifdef __GNUC__
+#define LSX_UNUSED  __attribute__ ((unused)) /* Parameter or local variable is intentionally unused. */
+#else
+#define LSX_UNUSED /* Parameter or local variable is intentionally unused. */
+#endif
+
+/**
+Plugins API:
+LSX_PRINTF12: Attribute applied to a function to indicate that it requires
+a printf-style format string for arg1 and that printf parameters start at
+arg2.
+*/
+#ifdef __GNUC__
+#define LSX_PRINTF12  __attribute__ ((format (printf, 1, 2))) /* Function has printf-style arguments. */
+#else
+#define LSX_PRINTF12 /* Function has printf-style arguments. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a function to indicate that it has no side effects and
+depends only its input parameters and global memory. If called repeatedly, it
+returns the same result each time.
+*/
+#ifdef __GNUC__
+#define LSX_RETURN_PURE __attribute__ ((pure)) /* Function is pure. */
+#else
+#define LSX_RETURN_PURE /* Function is pure. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a function to indicate that the
+return value is always a pointer to a valid object (never NULL).
+*/
+#ifdef _Ret_
+#define LSX_RETURN_VALID _Ret_ /* Function always returns a valid object (never NULL). */
+#else
+#define LSX_RETURN_VALID /* Function always returns a valid object (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a function to indicate that the return value is always a
+pointer to a valid array (never NULL).
+*/
+#ifdef _Ret_valid_
+#define LSX_RETURN_ARRAY _Ret_valid_ /* Function always returns a valid array (never NULL). */
+#else
+#define LSX_RETURN_ARRAY /* Function always returns a valid array (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a function to indicate that the return value is always a
+pointer to a valid 0-terminated array (never NULL).
+*/
+#ifdef _Ret_z_
+#define LSX_RETURN_VALID_Z _Ret_z_ /* Function always returns a 0-terminated array (never NULL). */
+#else
+#define LSX_RETURN_VALID_Z /* Function always returns a 0-terminated array (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a function to indicate that the returned pointer may be
+null.
+*/
+#ifdef _Ret_opt_
+#define LSX_RETURN_OPT _Ret_opt_ /* Function may return NULL. */
+#else
+#define LSX_RETURN_OPT /* Function may return NULL. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to one const element of the pointed-to type (never NULL).
+*/
+#ifdef _In_
+#define LSX_PARAM_IN _In_ /* Required const pointer to a valid object (never NULL). */
+#else
+#define LSX_PARAM_IN /* Required const pointer to a valid object (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to a const 0-terminated string (never NULL).
+*/
+#ifdef _In_z_
+#define LSX_PARAM_IN_Z _In_z_ /* Required const pointer to 0-terminated string (never NULL). */
+#else
+#define LSX_PARAM_IN_Z /* Required const pointer to 0-terminated string (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a const
+pointer to a 0-terminated printf format string.
+*/
+#ifdef _Printf_format_string_
+#define LSX_PARAM_IN_PRINTF _Printf_format_string_ /* Required const pointer to 0-terminated printf format string (never NULL). */
+#else
+#define LSX_PARAM_IN_PRINTF /* Required const pointer to 0-terminated printf format string (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to (len) const initialized elements of the pointed-to type, where
+(len) is the name of another parameter.
+ at param len The parameter that contains the number of elements in the array.
+*/
+#ifdef _In_count_
+#define LSX_PARAM_IN_COUNT(len) _In_count_(len) /* Required const pointer to (len) valid objects (never NULL). */
+#else
+#define LSX_PARAM_IN_COUNT(len) /* Required const pointer to (len) valid objects (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to (len) const bytes of initialized data, where (len) is the name of
+another parameter.
+ at param len The parameter that contains the number of bytes in the array.
+*/
+#ifdef _In_bytecount_
+#define LSX_PARAM_IN_BYTECOUNT(len) _In_bytecount_(len) /* Required const pointer to (len) bytes of data (never NULL). */
+#else
+#define LSX_PARAM_IN_BYTECOUNT(len) /* Required const pointer to (len) bytes of data (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is either NULL
+or a valid pointer to one const element of the pointed-to type.
+*/
+#ifdef _In_opt_
+#define LSX_PARAM_IN_OPT _In_opt_ /* Optional const pointer to a valid object (may be NULL). */
+#else
+#define LSX_PARAM_IN_OPT /* Optional const pointer to a valid object (may be NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is either NULL
+or a valid pointer to a const 0-terminated string.
+*/
+#ifdef _In_opt_z_
+#define LSX_PARAM_IN_OPT_Z _In_opt_z_ /* Optional const pointer to 0-terminated string (may be NULL). */
+#else
+#define LSX_PARAM_IN_OPT_Z /* Optional const pointer to 0-terminated string (may be NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to one initialized element of the pointed-to type (never NULL). The
+function may modify the element.
+*/
+#ifdef _Inout_
+#define LSX_PARAM_INOUT _Inout_ /* Required pointer to a valid object (never NULL). */
+#else
+#define LSX_PARAM_INOUT /* Required pointer to a valid object (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to (len) initialized elements of the pointed-to type (never NULL). The
+function may modify the elements.
+ at param len The parameter that contains the number of elements in the array.
+*/
+#ifdef _Inout_count_x_
+#define LSX_PARAM_INOUT_COUNT(len) _Inout_count_x_(len) /* Required pointer to (len) valid objects (never NULL). */
+#else
+#define LSX_PARAM_INOUT_COUNT(len) /* Required pointer to (len) valid objects (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to memory sufficient for one element of the pointed-to type (never
+NULL). The function will initialize the element.
+*/
+#ifdef _Out_
+#define LSX_PARAM_OUT _Out_ /* Required pointer to an object to be initialized (never NULL). */
+#else
+#define LSX_PARAM_OUT /* Required pointer to an object to be initialized (never NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to memory sufficient for (len) bytes of data (never NULL), where (len)
+is the name of another parameter. The function may write up to len bytes of
+data to this memory.
+ at param len The parameter that contains the number of bytes in the array.
+*/
+#ifdef _Out_bytecap_
+#define LSX_PARAM_OUT_BYTECAP(len) _Out_bytecap_(len) /* Required pointer to writable buffer with room for len bytes. */
+#else
+#define LSX_PARAM_OUT_BYTECAP(len) /* Required pointer to writable buffer with room for len bytes. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to memory sufficient for (len) elements of the pointed-to type (never
+NULL), where (len) is the name of another parameter. On return, (filled)
+elements will have been initialized, where (filled) is either the dereference
+of another pointer parameter (for example "*written") or the "return"
+parameter (indicating that the function returns the number of elements
+written).
+ at param len The parameter that contains the number of elements in the array.
+ at param filled The dereference of the parameter that receives the number of elements written to the array, or "return" if the value is returned.
+*/
+#ifdef _Out_cap_post_count_
+#define LSX_PARAM_OUT_CAP_POST_COUNT(len,filled) _Out_cap_post_count_(len,filled) /* Required pointer to buffer for (len) elements (never NULL); on return, (filled) elements will have been initialized. */
+#else
+#define LSX_PARAM_OUT_CAP_POST_COUNT(len,filled) /* Required pointer to buffer for (len) elements (never NULL); on return, (filled) elements will have been initialized. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer to memory sufficient for (len) elements of the pointed-to type (never
+NULL), where (len) is the name of another parameter. On return, (filled+1)
+elements will have been initialized, with the last element having been
+initialized to 0, where (filled) is either the dereference of another pointer
+parameter (for example, "*written") or the "return" parameter (indicating that
+the function returns the number of elements written).
+ at param len The parameter that contains the number of elements in the array.
+ at param filled The dereference of the parameter that receives the number of elements written to the array (not counting the terminating null), or "return" if the value is returned.
+*/
+#ifdef _Out_z_cap_post_count_
+#define LSX_PARAM_OUT_Z_CAP_POST_COUNT(len,filled) _Out_z_cap_post_count_(len,filled) /* Required pointer to buffer for (len) elements (never NULL); on return, (filled+1) elements will have been initialized, and the array will be 0-terminated. */
+#else
+#define LSX_PARAM_OUT_Z_CAP_POST_COUNT(len,filled) /* Required pointer to buffer for (len) elements (never NULL); on return, (filled+1) elements will have been initialized, and the array will be 0-terminated. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is either NULL
+or a valid pointer to memory sufficient for one element of the pointed-to
+type. The function will initialize the element.
+*/
+#ifdef _Out_opt_
+#define LSX_PARAM_OUT_OPT _Out_opt_ /* Optional pointer to an object to be initialized (may be NULL). */
+#else
+#define LSX_PARAM_OUT_OPT /* Optional pointer to an object to be initialized (may be NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer (never NULL) to another pointer which may be NULL when the function is
+invoked.
+*/
+#ifdef _Deref_pre_maybenull_
+#define LSX_PARAM_DEREF_PRE_MAYBENULL _Deref_pre_maybenull_ /* Required pointer (never NULL) to another pointer (may be NULL). */
+#else
+#define LSX_PARAM_DEREF_PRE_MAYBENULL /* Required pointer (never NULL) to another pointer (may be NULL). */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer (never NULL) to another pointer which will be NULL when the function
+returns.
+*/
+#ifdef _Deref_post_null_
+#define LSX_PARAM_DEREF_POST_NULL _Deref_post_null_ /* Required pointer (never NULL) to another pointer, which will be NULL on exit. */
+#else
+#define LSX_PARAM_DEREF_POST_NULL /* Required pointer (never NULL) to another pointer, which will be NULL on exit. */
+#endif
+
+/**
+Plugins API:
+Attribute applied to a parameter to indicate that the parameter is a valid
+pointer (never NULL) to another pointer which will be non-NULL when the
+function returns.
+*/
+#ifdef _Deref_post_notnull_
+#define LSX_PARAM_DEREF_POST_NOTNULL _Deref_post_notnull_ /* Required pointer (never NULL) to another pointer, which will be valid (not NULL) on exit. */
+#else
+#define LSX_PARAM_DEREF_POST_NOTNULL /* Required pointer (never NULL) to another pointer, which will be valid (not NULL) on exit. */
+#endif
+
+/**
+Plugins API:
+Expression that "uses" a potentially-unused variable to avoid compiler
+warnings (especially in macro-generated code).
+*/
+#ifdef _PREFAST_
+#define LSX_USE_VAR(x)  ((void)(x=0)) /* During static analysis, initialize unused variables to 0. */
+#else
+#define LSX_USE_VAR(x)  ((void)(x)) /* Parameter or variable is intentionally unused. */
+#endif
+
+/**
+Plugins API:
+Compile-time assertion. Causes a compile error if the expression is false.
+ at param e  The expression to test. If expression is false, compilation will fail.
+ at param f  A unique identifier for the test, for example foo_must_not_be_zero.
+*/
+#define lsx_static_assert(e,f) enum {lsx_static_assert_##f = 1/((e) ? 1 : 0)}
+
+/*****************************************************************************
+Basic typedefs:
+*****************************************************************************/
+
+/**
+Client API:
+Signed twos-complement 8-bit type. Typically defined as signed char.
+*/
+#if SCHAR_MAX==127 && SCHAR_MIN==(-128)
+typedef signed char sox_int8_t;
+#elif CHAR_MAX==127 && CHAR_MIN==(-128)
+typedef char sox_int8_t;
+#else
+#error Unable to determine an appropriate definition for sox_int8_t.
+#endif
+
+/**
+Client API:
+Unsigned 8-bit type. Typically defined as unsigned char.
+*/
+#if UCHAR_MAX==0xff
+typedef unsigned char sox_uint8_t;
+#elif CHAR_MAX==0xff && CHAR_MIN==0
+typedef char sox_uint8_t;
+#else
+#error Unable to determine an appropriate definition for sox_uint8_t.
+#endif
+
+/**
+Client API:
+Signed twos-complement 16-bit type. Typically defined as short.
+*/
+#if SHRT_MAX==32767 && SHRT_MIN==(-32768)
+typedef short sox_int16_t;
+#elif INT_MAX==32767 && INT_MIN==(-32768)
+typedef int sox_int16_t;
+#else
+#error Unable to determine an appropriate definition for sox_int16_t.
+#endif
+
+/**
+Client API:
+Unsigned 16-bit type. Typically defined as unsigned short.
+*/
+#if USHRT_MAX==0xffff
+typedef unsigned short sox_uint16_t;
+#elif UINT_MAX==0xffff
+typedef unsigned int sox_uint16_t;
+#else
+#error Unable to determine an appropriate definition for sox_uint16_t.
+#endif
+
+/**
+Client API:
+Signed twos-complement 32-bit type. Typically defined as int.
+*/
+#if INT_MAX==2147483647 && INT_MIN==(-2147483647-1)
+typedef int sox_int32_t;
+#elif LONG_MAX==2147483647 && LONG_MIN==(-2147483647-1)
+typedef long sox_int32_t;
+#else
+#error Unable to determine an appropriate definition for sox_int32_t.
+#endif
+
+/**
+Client API:
+Unsigned 32-bit type. Typically defined as unsigned int.
+*/
+#if UINT_MAX==0xffffffff
+typedef unsigned int sox_uint32_t;
+#elif ULONG_MAX==0xffffffff
+typedef unsigned long sox_uint32_t;
+#else
+#error Unable to determine an appropriate definition for sox_uint32_t.
+#endif
+
+/**
+Client API:
+Signed twos-complement 64-bit type. Typically defined as long or long long.
+*/
+#if LONG_MAX==9223372036854775807 && LONG_MIN==(-9223372036854775807-1)
+typedef long sox_int64_t;
+#elif defined(_MSC_VER)
+typedef __int64 sox_int64_t;
+#else
+typedef long long sox_int64_t;
+#endif
+
+/**
+Client API:
+Unsigned 64-bit type. Typically defined as unsigned long or unsigned long long.
+*/
+#if ULONG_MAX==0xffffffffffffffff
+typedef unsigned long sox_uint64_t;
+#elif defined(_MSC_VER)
+typedef unsigned __int64 sox_uint64_t;
+#else
+typedef unsigned long long sox_uint64_t;
+#endif
+
+#ifndef _DOXYGEN_
+lsx_static_assert(sizeof(sox_int8_t)==1,   sox_int8_size);
+lsx_static_assert(sizeof(sox_uint8_t)==1,  sox_uint8_size);
+lsx_static_assert(sizeof(sox_int16_t)==2,  sox_int16_size);
+lsx_static_assert(sizeof(sox_uint16_t)==2, sox_uint16_size);
+lsx_static_assert(sizeof(sox_int32_t)==4,  sox_int32_size);
+lsx_static_assert(sizeof(sox_uint32_t)==4, sox_uint32_size);
+lsx_static_assert(sizeof(sox_int64_t)==8,  sox_int64_size);
+lsx_static_assert(sizeof(sox_uint64_t)==8, sox_uint64_size);
+#endif
+
+/**
+Client API:
+Alias for sox_int32_t (beware of the extra byte).
+*/
+typedef sox_int32_t sox_int24_t;
+
+/**
+Client API:
+Alias for sox_uint32_t (beware of the extra byte).
+*/
+typedef sox_uint32_t sox_uint24_t;
+
+/**
+Client API:
+Native SoX audio sample type (alias for sox_int32_t).
+*/
+typedef sox_int32_t sox_sample_t;
+
+/**
+Client API:
+Samples per second is stored as a double.
+*/
+typedef double sox_rate_t;
+
+/**
+Client API:
+File's metadata, access via sox_*_comments functions.
+*/
+typedef char * * sox_comments_t;
+
+/*****************************************************************************
+Enumerations:
+*****************************************************************************/
+
+/**
+Client API:
+Boolean type, assignment (but not necessarily binary) compatible with C++ bool.
+*/
+typedef enum sox_bool {
+    sox_false, /**< False = 0. */
+    sox_true   /**< True = 1. */
+} sox_bool;
+
+/**
+Client API:
+no, yes, or default (default usually implies some kind of auto-detect logic).
+*/
+typedef enum sox_option_t {
+    sox_option_no,      /**< Option specified as no = 0. */
+    sox_option_yes,     /**< Option specified as yes = 1. */
+    sox_option_default  /**< Option unspecified = 2. */
+} sox_option_t;
+
+/**
+Client API:
+The libSoX-specific error codes.
+libSoX functions may return these codes or others that map from errno codes.
+*/
+enum sox_error_t {
+  SOX_SUCCESS = 0,     /**< Function succeeded = 0 */
+  SOX_EOF = -1,        /**< End Of File or other error = -1 */
+  SOX_EHDR = 2000,     /**< Invalid Audio Header = 2000 */
+  SOX_EFMT,            /**< Unsupported data format = 2001 */
+  SOX_ENOMEM,          /**< Can't alloc memory = 2002 */
+  SOX_EPERM,           /**< Operation not permitted = 2003 */
+  SOX_ENOTSUP,         /**< Operation not supported = 2004 */
+  SOX_EINVAL           /**< Invalid argument = 2005 */
+};
+
+/**
+Client API:
+Flags indicating whether optional features are present in this build of libSoX.
+*/
+typedef enum sox_version_flags_t {
+    sox_version_none = 0,         /**< No special features = 0. */
+    sox_version_have_popen = 1,   /**< popen = 1. */
+    sox_version_have_magic = 2,   /**< magic = 2. */
+    sox_version_have_threads = 4, /**< threads = 4. */
+    sox_version_have_memopen = 8  /**< memopen = 8. */
+} sox_version_flags_t;
+
+/**
+Client API:
+Format of sample data.
+*/
+typedef enum sox_encoding_t {
+  SOX_ENCODING_UNKNOWN   , /**< encoding has not yet been determined */
+
+  SOX_ENCODING_SIGN2     , /**< signed linear 2's comp: Mac */
+  SOX_ENCODING_UNSIGNED  , /**< unsigned linear: Sound Blaster */
+  SOX_ENCODING_FLOAT     , /**< floating point (binary format) */
+  SOX_ENCODING_FLOAT_TEXT, /**< floating point (text format) */
+  SOX_ENCODING_FLAC      , /**< FLAC compression */
+  SOX_ENCODING_HCOM      , /**< Mac FSSD files with Huffman compression */
+  SOX_ENCODING_WAVPACK   , /**< WavPack with integer samples */
+  SOX_ENCODING_WAVPACKF  , /**< WavPack with float samples */
+  SOX_ENCODING_ULAW      , /**< u-law signed logs: US telephony, SPARC */
+  SOX_ENCODING_ALAW      , /**< A-law signed logs: non-US telephony, Psion */
+  SOX_ENCODING_G721      , /**< G.721 4-bit ADPCM */
+  SOX_ENCODING_G723      , /**< G.723 3 or 5 bit ADPCM */
+  SOX_ENCODING_CL_ADPCM  , /**< Creative Labs 8 --> 2,3,4 bit Compressed PCM */
+  SOX_ENCODING_CL_ADPCM16, /**< Creative Labs 16 --> 4 bit Compressed PCM */
+  SOX_ENCODING_MS_ADPCM  , /**< Microsoft Compressed PCM */
+  SOX_ENCODING_IMA_ADPCM , /**< IMA Compressed PCM */
+  SOX_ENCODING_OKI_ADPCM , /**< Dialogic/OKI Compressed PCM */
+  SOX_ENCODING_DPCM      , /**< Differential PCM: Fasttracker 2 (xi) */
+  SOX_ENCODING_DWVW      , /**< Delta Width Variable Word */
+  SOX_ENCODING_DWVWN     , /**< Delta Width Variable Word N-bit */
+  SOX_ENCODING_GSM       , /**< GSM 6.10 33byte frame lossy compression */
+  SOX_ENCODING_MP3       , /**< MP3 compression */
+  SOX_ENCODING_VORBIS    , /**< Vorbis compression */
+  SOX_ENCODING_AMR_WB    , /**< AMR-WB compression */
+  SOX_ENCODING_AMR_NB    , /**< AMR-NB compression */
+  SOX_ENCODING_CVSD      , /**< Continuously Variable Slope Delta modulation */
+  SOX_ENCODING_LPC10     , /**< Linear Predictive Coding */
+
+  SOX_ENCODINGS            /**< End of list marker */
+} sox_encoding_t;
+
+/**
+Client API:
+Flags for sox_encodings_info_t: lossless/lossy1/lossy2.
+*/
+typedef enum sox_encodings_flags_t {
+  sox_encodings_none   = 0, /**< no flags specified (implies lossless encoding) = 0. */
+  sox_encodings_lossy1 = 1, /**< encode, decode: lossy once = 1. */
+  sox_encodings_lossy2 = 2  /**< encode, decode, encode, decode: lossy twice = 2. */
+} sox_encodings_flags_t;
+
+/**
+Client API:
+Type of plot.
+*/
+typedef enum sox_plot_t {
+    sox_plot_off,     /**< No plot = 0. */
+    sox_plot_octave,  /**< Octave plot = 1. */
+    sox_plot_gnuplot, /**< Gnuplot plot = 2. */
+    sox_plot_data     /**< Plot data = 3. */
+} sox_plot_t;
+
+/**
+Client API:
+Loop modes: upper 4 bits mask the loop blass, lower 4 bits describe
+the loop behaviour, for example single shot, bidirectional etc.
+*/
+enum sox_loop_flags_t {
+  sox_loop_none = 0,          /**< single-shot = 0 */
+  sox_loop_forward = 1,       /**< forward loop = 1 */
+  sox_loop_forward_back = 2,  /**< forward/back loop = 2 */
+  sox_loop_8 = 32,            /**< 8 loops (??) = 32 */
+  sox_loop_sustain_decay = 64 /**< AIFF style, one sustain & one decay loop = 64 */
+};
+
+/**
+Plugins API:
+Is file a real file, a pipe, or a url?
+*/
+typedef enum lsx_io_type
+{
+    lsx_io_file, /**< File is a real file = 0. */
+    lsx_io_pipe, /**< File is a pipe (no seeking) = 1. */
+    lsx_io_url   /**< File is a URL (no seeking) = 2. */
+} lsx_io_type;
+
+/*****************************************************************************
+Macros:
+*****************************************************************************/
+
+/**
+Client API:
+Compute a 32-bit integer API version from three 8-bit parts.
+ at param a Major version.
+ at param b Minor version.
+ at param c Revision or build number.
+ at returns 32-bit integer API version 0x000a0b0c.
+*/
+#define SOX_LIB_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
+
+/**
+Client API:
+The API version of the sox.h file. It is not meant to follow the version
+number of SoX but it has historically. Please do not count on
+SOX_LIB_VERSION_CODE staying in sync with the libSoX version.
+*/
+#define SOX_LIB_VERSION_CODE   SOX_LIB_VERSION(14, 4, 1)
+
+/**
+Client API:
+Returns the smallest (negative) value storable in a twos-complement signed
+integer with the specified number of bits, cast to an unsigned integer;
+for example, SOX_INT_MIN(8) = 0x80, SOX_INT_MIN(16) = 0x8000, etc.
+ at param bits Size of value for which to calculate minimum.
+ at returns the smallest (negative) value storable in a twos-complement signed
+integer with the specified number of bits, cast to an unsigned integer.
+*/
+#define SOX_INT_MIN(bits) (1 <<((bits)-1))
+
+/**
+Client API:
+Returns the largest (positive) value storable in a twos-complement signed
+integer with the specified number of bits, cast to an unsigned integer;
+for example, SOX_INT_MAX(8) = 0x7F, SOX_INT_MAX(16) = 0x7FFF, etc.
+ at param bits Size of value for which to calculate maximum.
+ at returns the largest (positive) value storable in a twos-complement signed
+integer with the specified number of bits, cast to an unsigned integer.
+*/
+#define SOX_INT_MAX(bits) (((unsigned)-1)>>(33-(bits)))
+
+/**
+Client API:
+Returns the largest value storable in an unsigned integer with the specified
+number of bits; for example, SOX_UINT_MAX(8) = 0xFF,
+SOX_UINT_MAX(16) = 0xFFFF, etc.
+ at param bits Size of value for which to calculate maximum.
+ at returns the largest value storable in an unsigned integer with the specified
+number of bits.
+*/
+#define SOX_UINT_MAX(bits) (SOX_INT_MIN(bits)|SOX_INT_MAX(bits))
+
+/**
+Client API:
+Returns 0x7F.
+*/
+#define SOX_INT8_MAX  SOX_INT_MAX(8)
+
+/**
+Client API:
+Returns 0x7FFF.
+*/
+#define SOX_INT16_MAX SOX_INT_MAX(16)
+
+/**
+Client API:
+Returns 0x7FFFFF.
+*/
+#define SOX_INT24_MAX SOX_INT_MAX(24)
+
+/**
+Client API:
+Returns 0x7FFFFFFF.
+*/
+#define SOX_INT32_MAX SOX_INT_MAX(32)
+
+/**
+Client API:
+Bits in a sox_sample_t = 32.
+*/
+#define SOX_SAMPLE_PRECISION 32
+
+/**
+Client API:
+Max value for sox_sample_t = 0x7FFFFFFF.
+*/
+#define SOX_SAMPLE_MAX (sox_sample_t)SOX_INT_MAX(32)
+
+/**
+Client API:
+Min value for sox_sample_t = 0x80000000.
+*/
+#define SOX_SAMPLE_MIN (sox_sample_t)SOX_INT_MIN(32)
+
+
+/*                Conversions: Linear PCM <--> sox_sample_t
+ *
+ *   I/O      Input    sox_sample_t Clips?   Input    sox_sample_t Clips?
+ *  Format   Minimum     Minimum     I O    Maximum     Maximum     I O
+ *  ------  ---------  ------------ -- --   --------  ------------ -- --
+ *  Float     -inf         -1        y n      inf      1 - 5e-10    y n
+ *  Int8      -128        -128       n n      127     127.9999999   n y
+ *  Int16    -32768      -32768      n n     32767    32767.99998   n y
+ *  Int24   -8388608    -8388608     n n    8388607   8388607.996   n y
+ *  Int32  -2147483648 -2147483648   n n   2147483647 2147483647    n n
+ *
+ * Conversions are as accurate as possible (with rounding).
+ *
+ * Rounding: halves toward +inf, all others to nearest integer.
+ *
+ * Clips? shows whether on not there is the possibility of a conversion
+ * clipping to the minimum or maximum value when inputing from or outputing
+ * to a given type.
+ *
+ * Unsigned integers are converted to and from signed integers by flipping
+ * the upper-most bit then treating them as signed integers.
+ */
+
+/**
+Client API:
+Declares the temporary local variables that are required when using SOX
+conversion macros.
+*/
+#define SOX_SAMPLE_LOCALS sox_sample_t sox_macro_temp_sample LSX_UNUSED; \
+  double sox_macro_temp_double LSX_UNUSED
+
+/**
+Client API:
+Sign bit for sox_sample_t = 0x80000000.
+*/
+#define SOX_SAMPLE_NEG SOX_INT_MIN(32)
+
+/**
+Client API:
+Converts sox_sample_t to an unsigned integer of width (bits).
+ at param bits  Width of resulting sample (1 through 32).
+ at param d     Input sample to be converted.
+ at param clips Variable that is incremented if the result is too big.
+ at returns Unsigned integer of width (bits).
+*/
+#define SOX_SAMPLE_TO_UNSIGNED(bits,d,clips) \
+  (sox_uint##bits##_t)(SOX_SAMPLE_TO_SIGNED(bits,d,clips)^SOX_INT_MIN(bits))
+
+/**
+Client API:
+Converts sox_sample_t to a signed integer of width (bits).
+ at param bits  Width of resulting sample (1 through 32).
+ at param d     Input sample to be converted.
+ at param clips Variable that is incremented if the result is too big.
+ at returns Signed integer of width (bits).
+*/
+#define SOX_SAMPLE_TO_SIGNED(bits,d,clips) \
+  (sox_int##bits##_t)(LSX_USE_VAR(sox_macro_temp_double),sox_macro_temp_sample=(d),sox_macro_temp_sample>SOX_SAMPLE_MAX-(1<<(31-bits))?++(clips),SOX_INT_MAX(bits):((sox_uint32_t)(sox_macro_temp_sample+(1<<(31-bits))))>>(32-bits))
+
+/**
+Client API:
+Converts signed integer of width (bits) to sox_sample_t.
+ at param bits Width of input sample (1 through 32).
+ at param d    Input sample to be converted.
+ at returns SoX native sample value.
+*/
+#define SOX_SIGNED_TO_SAMPLE(bits,d)((sox_sample_t)(d)<<(32-bits))
+
+/**
+Client API:
+Converts unsigned integer of width (bits) to sox_sample_t.
+ at param bits Width of input sample (1 through 32).
+ at param d    Input sample to be converted.
+ at returns SoX native sample value.
+*/
+#define SOX_UNSIGNED_TO_SAMPLE(bits,d)(SOX_SIGNED_TO_SAMPLE(bits,d)^SOX_SAMPLE_NEG)
+
+/**
+Client API:
+Converts unsigned 8-bit integer to sox_sample_t.
+ at param d     Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_UNSIGNED_8BIT_TO_SAMPLE(d,clips) SOX_UNSIGNED_TO_SAMPLE(8,d)
+
+/**
+Client API:
+Converts signed 8-bit integer to sox_sample_t.
+ at param d    Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_SIGNED_8BIT_TO_SAMPLE(d,clips) SOX_SIGNED_TO_SAMPLE(8,d)
+
+/**
+Client API:
+Converts unsigned 16-bit integer to sox_sample_t.
+ at param d     Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_UNSIGNED_16BIT_TO_SAMPLE(d,clips) SOX_UNSIGNED_TO_SAMPLE(16,d)
+
+/**
+Client API:
+Converts signed 16-bit integer to sox_sample_t.
+ at param d    Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_SIGNED_16BIT_TO_SAMPLE(d,clips) SOX_SIGNED_TO_SAMPLE(16,d)
+
+/**
+Client API:
+Converts unsigned 24-bit integer to sox_sample_t.
+ at param d     Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_UNSIGNED_24BIT_TO_SAMPLE(d,clips) SOX_UNSIGNED_TO_SAMPLE(24,d)
+
+/**
+Client API:
+Converts signed 24-bit integer to sox_sample_t.
+ at param d    Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_SIGNED_24BIT_TO_SAMPLE(d,clips) SOX_SIGNED_TO_SAMPLE(24,d)
+
+/**
+Client API:
+Converts unsigned 32-bit integer to sox_sample_t.
+ at param d     Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_UNSIGNED_32BIT_TO_SAMPLE(d,clips) ((sox_sample_t)(d)^SOX_SAMPLE_NEG)
+
+/**
+Client API:
+Converts signed 32-bit integer to sox_sample_t.
+ at param d    Input sample to be converted.
+ at param clips The parameter is not used.
+ at returns SoX native sample value.
+*/
+#define SOX_SIGNED_32BIT_TO_SAMPLE(d,clips) (sox_sample_t)(d)
+
+/**
+Client API:
+Converts 32-bit float to sox_sample_t.
+ at param d     Input sample to be converted, range [-1, 1).
+ at param clips Variable to increment if the input sample is too large or too small.
+ at returns SoX native sample value.
+*/
+#define SOX_FLOAT_32BIT_TO_SAMPLE(d,clips) (sox_sample_t)(LSX_USE_VAR(sox_macro_temp_sample),sox_macro_temp_double=(d)*(SOX_SAMPLE_MAX+1.),sox_macro_temp_double<SOX_SAMPLE_MIN?++(clips),SOX_SAMPLE_MIN:sox_macro_temp_double>=SOX_SAMPLE_MAX+1.?sox_macro_temp_double>SOX_SAMPLE_MAX+1.?++(clips),SOX_SAMPLE_MAX:SOX_SAMPLE_MAX:sox_macro_temp_double)
+
+/**
+Client API:
+Converts 64-bit float to sox_sample_t.
+ at param d     Input sample to be converted, range [-1, 1).
+ at param clips Variable to increment if the input sample is too large or too small.
+ at returns SoX native sample value.
+*/
+#define SOX_FLOAT_64BIT_TO_SAMPLE(d,clips) (sox_sample_t)(LSX_USE_VAR(sox_macro_temp_sample),sox_macro_temp_double=(d)*(SOX_SAMPLE_MAX+1.),sox_macro_temp_double<0?sox_macro_temp_double<=SOX_SAMPLE_MIN-.5?++(clips),SOX_SAMPLE_MIN:sox_macro_temp_double-.5:sox_macro_temp_double>=SOX_SAMPLE_MAX+.5?sox_macro_temp_double>SOX_SAMPLE_MAX+1.?++(clips),SOX_SAMPLE_MAX:SOX_SAMPLE_MAX:sox_macro_temp_double+.5)
+
+/**
+Client API:
+Converts SoX native sample to an unsigned 8-bit integer.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_UNSIGNED_8BIT(d,clips) SOX_SAMPLE_TO_UNSIGNED(8,d,clips)
+
+/**
+Client API:
+Converts SoX native sample to an signed 8-bit integer.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_SIGNED_8BIT(d,clips) SOX_SAMPLE_TO_SIGNED(8,d,clips)
+
+/**
+Client API:
+Converts SoX native sample to an unsigned 16-bit integer.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_UNSIGNED_16BIT(d,clips) SOX_SAMPLE_TO_UNSIGNED(16,d,clips)
+
+/**
+Client API:
+Converts SoX native sample to a signed 16-bit integer.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_SIGNED_16BIT(d,clips) SOX_SAMPLE_TO_SIGNED(16,d,clips)
+
+/**
+Client API:
+Converts SoX native sample to an unsigned 24-bit integer.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_UNSIGNED_24BIT(d,clips) SOX_SAMPLE_TO_UNSIGNED(24,d,clips)
+
+/**
+Client API:
+Converts SoX native sample to a signed 24-bit integer.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_SIGNED_24BIT(d,clips) SOX_SAMPLE_TO_SIGNED(24,d,clips)
+
+/**
+Client API:
+Converts SoX native sample to an unsigned 32-bit integer.
+ at param d Input sample to be converted.
+ at param clips The parameter is not used.
+*/
+#define SOX_SAMPLE_TO_UNSIGNED_32BIT(d,clips) (sox_uint32_t)((d)^SOX_SAMPLE_NEG)
+
+/**
+Client API:
+Converts SoX native sample to a signed 32-bit integer.
+ at param d Input sample to be converted.
+ at param clips The parameter is not used.
+*/
+#define SOX_SAMPLE_TO_SIGNED_32BIT(d,clips) (sox_int32_t)(d)
+
+/**
+Client API:
+Converts SoX native sample to a 32-bit float.
+ at param d Input sample to be converted.
+ at param clips Variable to increment if input sample is too large.
+*/
+#define SOX_SAMPLE_TO_FLOAT_32BIT(d,clips) (LSX_USE_VAR(sox_macro_temp_double),sox_macro_temp_sample=(d),sox_macro_temp_sample>SOX_SAMPLE_MAX-128?++(clips),1:(((sox_macro_temp_sample+128)&~255)*(1./(SOX_SAMPLE_MAX+1.))))
+
+/**
+Client API:
+Converts SoX native sample to a 64-bit float.
+ at param d Input sample to be converted.
+ at param clips The parameter is not used.
+*/
+#define SOX_SAMPLE_TO_FLOAT_64BIT(d,clips) ((d)*(1./(SOX_SAMPLE_MAX+1.)))
+
+/**
+Client API:
+Clips a value of a type that is larger then sox_sample_t (for example, int64)
+to sox_sample_t's limits and increment a counter if clipping occurs.
+ at param samp Value (lvalue) to be clipped, updated as necessary.
+ at param clips Value (lvalue) that is incremented if clipping is needed.
+*/
+#define SOX_SAMPLE_CLIP_COUNT(samp, clips) \
+  do { \
+    if (samp > SOX_SAMPLE_MAX) \
+      { samp = SOX_SAMPLE_MAX; clips++; } \
+    else if (samp < SOX_SAMPLE_MIN) \
+      { samp = SOX_SAMPLE_MIN; clips++; } \
+  } while (0)
+
+/**
+Client API:
+Clips a value of a type that is larger then sox_sample_t (for example, int64)
+to sox_sample_t's limits and increment a counter if clipping occurs.
+ at param d Value (rvalue) to be clipped.
+ at param clips Value (lvalue) that is incremented if clipping is needed.
+ at returns Clipped value.
+*/
+#define SOX_ROUND_CLIP_COUNT(d, clips) \
+  ((d) < 0? (d) <= SOX_SAMPLE_MIN - 0.5? ++(clips), SOX_SAMPLE_MIN: (d) - 0.5 \
+        : (d) >= SOX_SAMPLE_MAX + 0.5? ++(clips), SOX_SAMPLE_MAX: (d) + 0.5)
+
+/**
+Client API:
+Clips a value to the limits of a signed integer of the specified width
+and increment a counter if clipping occurs.
+ at param bits Width (in bits) of target integer type.
+ at param i Value (rvalue) to be clipped.
+ at param clips Value (lvalue) that is incremented if clipping is needed.
+ at returns Clipped value.
+*/
+#define SOX_INTEGER_CLIP_COUNT(bits,i,clips) ( \
+  (i) >(1 << ((bits)-1))- 1? ++(clips),(1 << ((bits)-1))- 1 : \
+  (i) <-1 << ((bits)-1)    ? ++(clips),-1 << ((bits)-1) : (i))
+
+/**
+Client API:
+Clips a value to the limits of a 16-bit signed integer and increment a counter
+if clipping occurs.
+ at param i Value (rvalue) to be clipped.
+ at param clips Value (lvalue) that is incremented if clipping is needed.
+ at returns Clipped value.
+*/
+#define SOX_16BIT_CLIP_COUNT(i,clips) SOX_INTEGER_CLIP_COUNT(16,i,clips)
+
+/**
+Client API:
+Clips a value to the limits of a 24-bit signed integer and increment a counter
+if clipping occurs.
+ at param i Value (rvalue) to be clipped.
+ at param clips Value (lvalue) that is incremented if clipping is needed.
+ at returns Clipped value.
+*/
+#define SOX_24BIT_CLIP_COUNT(i,clips) SOX_INTEGER_CLIP_COUNT(24,i,clips)
+
+#define SOX_SIZE_MAX ((size_t)(-1)) /**< Client API: Maximum value of size_t. */
+
+#define SOX_UNSPEC 0                         /**< Client API: Members of sox_signalinfo_t are set to SOX_UNSPEC (= 0) if the actual value is not yet known. */
+#define SOX_UNKNOWN_LEN (sox_uint64_t)(-1) /**< Client API: sox_signalinfo_t.length is set to SOX_UNKNOWN_LEN (= -1) within the effects chain if the actual length is not known. Format handlers currently use SOX_UNSPEC instead. */
+#define SOX_IGNORE_LENGTH (sox_uint64_t)(-2) /**< Client API: sox_signalinfo_t.length is set to SOX_IGNORE_LENGTH (= -2) to indicate that a format handler should ignore length information in file headers. */
+
+#define SOX_DEFAULT_CHANNELS  2     /**< Client API: Default channel count is 2 (stereo). */
+#define SOX_DEFAULT_RATE      48000 /**< Client API: Default rate is 48000Hz. */
+#define SOX_DEFAULT_PRECISION 16    /**< Client API: Default precision is 16 bits per sample. */
+#define SOX_DEFAULT_ENCODING  SOX_ENCODING_SIGN2 /**< Client API: Default encoding is SIGN2 (linear 2's complement PCM). */
+
+#define SOX_LOOP_NONE          ((unsigned char)sox_loop_none)          /**< Client API: single-shot = 0 */
+#define SOX_LOOP_8             ((unsigned char)sox_loop_8)             /**< Client API: 8 loops = 32 */
+#define SOX_LOOP_SUSTAIN_DECAY ((unsigned char)sox_loop_sustain_decay) /**< Client API: AIFF style, one sustain & one decay loop = 64 */
+
+#define SOX_MAX_NLOOPS         8 /**< Client API: Maximum number of loops supported by sox_oob_t = 8. */
+
+#define SOX_FILE_NOSTDIO 0x0001 /**< Client API: Does not use stdio routines */
+#define SOX_FILE_DEVICE  0x0002 /**< Client API: File is an audio device */
+#define SOX_FILE_PHONY   0x0004 /**< Client API: Phony file/device (for example /dev/null) */
+#define SOX_FILE_REWIND  0x0008 /**< Client API: File should be rewound to write header */
+#define SOX_FILE_BIT_REV 0x0010 /**< Client API: Is file bit-reversed? */
+#define SOX_FILE_NIB_REV 0x0020 /**< Client API: Is file nibble-reversed? */
+#define SOX_FILE_ENDIAN  0x0040 /**< Client API: Is file format endian? */
+#define SOX_FILE_ENDBIG  0x0080 /**< Client API: For endian file format, is it big endian? */
+#define SOX_FILE_MONO    0x0100 /**< Client API: Do channel restrictions allow mono? */
+#define SOX_FILE_STEREO  0x0200 /**< Client API: Do channel restrictions allow stereo? */
+#define SOX_FILE_QUAD    0x0400 /**< Client API: Do channel restrictions allow quad? */
+
+#define SOX_FILE_CHANS   (SOX_FILE_MONO | SOX_FILE_STEREO | SOX_FILE_QUAD) /**< Client API: No channel restrictions */
+#define SOX_FILE_LIT_END (SOX_FILE_ENDIAN | 0)                             /**< Client API: File is little-endian */
+#define SOX_FILE_BIG_END (SOX_FILE_ENDIAN | SOX_FILE_ENDBIG)               /**< Client API: File is big-endian */
+
+#define SOX_EFF_CHAN     1           /**< Client API: Effect might alter the number of channels */
+#define SOX_EFF_RATE     2           /**< Client API: Effect might alter sample rate */
+#define SOX_EFF_PREC     4           /**< Client API: Effect does its own calculation of output sample precision (otherwise a default value is taken, depending on the presence of SOX_EFF_MODIFY) */
+#define SOX_EFF_LENGTH   8           /**< Client API: Effect might alter audio length (as measured in time units, not necessarily in samples) */
+#define SOX_EFF_MCHAN    16          /**< Client API: Effect handles multiple channels internally */
+#define SOX_EFF_NULL     32          /**< Client API: Effect does nothing (can be optimized out of chain) */
+#define SOX_EFF_DEPRECATED 64        /**< Client API: Effect will soon be removed from SoX */
+#define SOX_EFF_GAIN     128         /**< Client API: Effect does not support gain -r */
+#define SOX_EFF_MODIFY   256         /**< Client API: Effect does not modify sample values (but might remove or duplicate samples or insert zeros) */
+#define SOX_EFF_ALPHA    512         /**< Client API: Effect is experimental/incomplete */
+#define SOX_EFF_INTERNAL 1024        /**< Client API: Effect present in libSoX but not valid for use by SoX command-line tools */
+
+/**
+Client API:
+When used as the "whence" parameter of sox_seek, indicates that the specified
+offset is relative to the beginning of the file.
+*/
+#define SOX_SEEK_SET 0
+
+/*****************************************************************************
+Forward declarations:
+*****************************************************************************/
+
+typedef struct sox_format_t sox_format_t;
+typedef struct sox_effect_t sox_effect_t;
+typedef struct sox_effect_handler_t sox_effect_handler_t;
+typedef struct sox_format_handler_t sox_format_handler_t;
+
+/*****************************************************************************
+Function pointers:
+*****************************************************************************/
+
+/**
+Client API:
+Callback to write a message to an output device (console or log file),
+used by sox_globals_t.output_message_handler.
+*/
+typedef void (LSX_API * sox_output_message_handler_t)(
+    unsigned level,                       /* 1 = FAIL, 2 = WARN, 3 = INFO, 4 = DEBUG, 5 = DEBUG_MORE, 6 = DEBUG_MOST. */
+    LSX_PARAM_IN_Z char const * filename, /* Source code __FILENAME__ from which message originates. */
+    LSX_PARAM_IN_PRINTF char const * fmt, /* Message format string. */
+    LSX_PARAM_IN va_list ap               /* Message format parameters. */
+    );
+
+/**
+Client API:
+Callback to retrieve information about a format handler,
+used by sox_format_tab_t.fn.
+ at returns format handler information.
+*/
+typedef sox_format_handler_t const * (LSX_API * sox_format_fn_t)(void);
+
+/**
+Client API:
+Callback to get information about an effect handler,
+used by the table returned from sox_get_effect_fns(void).
+ at returns Pointer to information about an effect handler.
+*/
+typedef sox_effect_handler_t const * (LSX_API *sox_effect_fn_t)(void);
+
+/**
+Client API:
+Callback to initialize reader (decoder), used by
+sox_format_handler.startread.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_format_handler_startread)(
+    LSX_PARAM_INOUT sox_format_t * ft /**< Format pointer. */
+    );
+
+/**
+Client API:
+Callback to read (decode) a block of samples,
+used by sox_format_handler.read.
+ at returns number of samples read, or 0 if unsuccessful.
+*/
+typedef size_t (LSX_API * sox_format_handler_read)(
+    LSX_PARAM_INOUT sox_format_t * ft, /**< Format pointer. */
+    LSX_PARAM_OUT_CAP_POST_COUNT(len,return) sox_sample_t *buf, /**< Buffer from which to read samples. */
+    size_t len /**< Number of samples available in buf. */
+    );
+
+/**
+Client API:
+Callback to close reader (decoder),
+used by sox_format_handler.stopread.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_format_handler_stopread)(
+    LSX_PARAM_INOUT sox_format_t * ft /**< Format pointer. */
+    );
+
+/**
+Client API:
+Callback to initialize writer (encoder),
+used by sox_format_handler.startwrite.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_format_handler_startwrite)(
+    LSX_PARAM_INOUT sox_format_t * ft /**< Format pointer. */
+    );
+
+/**
+Client API:
+Callback to write (encode) a block of samples,
+used by sox_format_handler.write.
+ at returns number of samples written, or 0 if unsuccessful.
+*/
+typedef size_t (LSX_API * sox_format_handler_write)(
+    LSX_PARAM_INOUT sox_format_t * ft, /**< Format pointer. */
+    LSX_PARAM_IN_COUNT(len) sox_sample_t const * buf, /**< Buffer to which samples are written. */
+    size_t len /**< Capacity of buf, measured in samples. */
+    );
+
+/**
+Client API:
+Callback to close writer (decoder),
+used by sox_format_handler.stopwrite.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_format_handler_stopwrite)(
+    LSX_PARAM_INOUT sox_format_t * ft /**< Format pointer. */
+    );
+
+/**
+Client API:
+Callback to reposition reader,
+used by sox_format_handler.seek.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_format_handler_seek)(
+    LSX_PARAM_INOUT sox_format_t * ft, /**< Format pointer. */
+    sox_uint64_t offset /**< Sample offset to which reader should be positioned. */
+    );
+
+/**
+Client API:
+Callback to parse command-line arguments (called once per effect),
+used by sox_effect_handler.getopts.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_effect_handler_getopts)(
+    LSX_PARAM_INOUT sox_effect_t * effp, /**< Effect pointer. */
+    int argc, /**< Number of arguments in argv. */
+    LSX_PARAM_IN_COUNT(argc) char *argv[] /**< Array of command-line arguments. */
+    );
+
+/**
+Client API:
+Callback to initialize effect (called once per flow),
+used by sox_effect_handler.start.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_effect_handler_start)(
+    LSX_PARAM_INOUT sox_effect_t * effp /**< Effect pointer. */
+    );
+
+/**
+Client API:
+Callback to process samples,
+used by sox_effect_handler.flow.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_effect_handler_flow)(
+    LSX_PARAM_INOUT sox_effect_t * effp, /**< Effect pointer. */
+    LSX_PARAM_IN_COUNT(*isamp) sox_sample_t const * ibuf, /**< Buffer from which to read samples. */
+    LSX_PARAM_OUT_CAP_POST_COUNT(*osamp,*osamp) sox_sample_t * obuf, /**< Buffer to which samples are written. */
+    LSX_PARAM_INOUT size_t *isamp, /**< On entry, contains capacity of ibuf; on exit, contains number of samples consumed. */
+    LSX_PARAM_INOUT size_t *osamp /**< On entry, contains capacity of obuf; on exit, contains number of samples written. */
+    );
+
+/**
+Client API:
+Callback to finish getting output after input is complete,
+used by sox_effect_handler.drain.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_effect_handler_drain)(
+    LSX_PARAM_INOUT sox_effect_t * effp, /**< Effect pointer. */
+    LSX_PARAM_OUT_CAP_POST_COUNT(*osamp,*osamp) sox_sample_t *obuf, /**< Buffer to which samples are written. */
+    LSX_PARAM_INOUT size_t *osamp /**< On entry, contains capacity of obuf; on exit, contains number of samples written. */
+    );
+
+/**
+Client API:
+Callback to shut down effect (called once per flow),
+used by sox_effect_handler.stop.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_effect_handler_stop)(
+    LSX_PARAM_INOUT sox_effect_t * effp /**< Effect pointer. */
+    );
+
+/**
+Client API:
+Callback to shut down effect (called once per effect),
+used by sox_effect_handler.kill.
+ at returns SOX_SUCCESS if successful.
+*/
+typedef int (LSX_API * sox_effect_handler_kill)(
+    LSX_PARAM_INOUT sox_effect_t * effp /**< Effect pointer. */
+    );
+
+/**
+Client API:
+Callback called while flow is running (called once per buffer),
+used by sox_flow_effects.callback.
+ at returns SOX_SUCCESS to continue, other value to abort flow.
+*/
+typedef int (LSX_API * sox_flow_effects_callback)(
+    sox_bool all_done,
+    void * client_data
+    );
+
+/**
+Client API:
+Callback for enumerating the contents of a playlist,
+used by the sox_parse_playlist function.
+ at returns SOX_SUCCESS if successful, any other value to abort playlist enumeration.
+*/
+typedef int (LSX_API * sox_playlist_callback_t)(
+    void * callback_data,
+    LSX_PARAM_IN_Z char const * filename
+    );
+
+/*****************************************************************************
+Structures:
+*****************************************************************************/
+
+/**
+Client API:
+Information about a build of libSoX, returned from the sox_version_info
+function.
+*/
+typedef struct sox_version_info_t {
+    size_t       size;         /**< structure size = sizeof(sox_version_info_t) */
+    sox_version_flags_t flags; /**< feature flags = popen | magic | threads | memopen */
+    sox_uint32_t version_code; /**< version number = 0x140400 */
+    char const * version;      /**< version string = sox_version(), for example, "14.4.0" */
+    char const * version_extra;/**< version extra info or null = "PACKAGE_EXTRA", for example, "beta" */
+    char const * time;         /**< build time = "__DATE__ __TIME__", for example, "Jan  7 2010 03:31:50" */
+    char const * distro;       /**< distro or null = "DISTRO", for example, "Debian" */
+    char const * compiler;     /**< compiler info or null, for example, "msvc 160040219" */
+    char const * arch;         /**< arch, for example, "1248 48 44 L OMP" */
+    /* new info should be added at the end for version backwards-compatibility. */
+} sox_version_info_t;
+
+/**
+Client API:
+Global parameters (for effects & formats), returned from the sox_get_globals
+function.
+*/
+typedef struct sox_globals_t {
+/* public: */
+  unsigned     verbosity; /**< messages are only written if globals.verbosity >= message.level */
+  sox_output_message_handler_t output_message_handler; /**< client-specified message output callback */
+  sox_bool     repeatable; /**< true to use pre-determined timestamps and PRNG seed */
+
+  /**
+  Default size (in bytes) used by libSoX for blocks of sample data.
+  Plugins should use similarly-sized buffers to get best performance.
+  */
+  size_t       bufsiz;
+
+  /**
+  Default size (in bytes) used by libSoX for blocks of input sample data.
+  Plugins should use similarly-sized buffers to get best performance.
+  */
+  size_t       input_bufsiz;
+
+  sox_int32_t  ranqd1; /**< Can be used to re-seed libSoX's PRNG */
+
+  char const * stdin_in_use_by;  /**< Private: tracks the name of the handler currently using stdin */
+  char const * stdout_in_use_by; /**< Private: tracks the name of the handler currently using stdout */
+  char const * subsystem;        /**< Private: tracks the name of the handler currently writing an output message */
+  char       * tmp_path;         /**< Private: client-configured path to use for temporary files */
+  sox_bool     use_magic;        /**< Private: true if client has requested use of 'magic' file-type detection */
+  sox_bool     use_threads;      /**< Private: true if client has requested parallel effects processing */
+} sox_globals_t;
+
+/**
+Client API:
+Signal parameters; members should be set to SOX_UNSPEC (= 0) if unknown.
+*/
+typedef struct sox_signalinfo_t {
+  sox_rate_t       rate;         /**< samples per second, 0 if unknown */
+  unsigned         channels;     /**< number of sound channels, 0 if unknown */
+  unsigned         precision;    /**< bits per sample, 0 if unknown */
+  sox_uint64_t     length;       /**< samples * chans in file, 0 if unknown, -1 if unspecified */
+  double           * mult;       /**< Effects headroom multiplier; may be null */
+} sox_signalinfo_t;
+
+/**
+Client API:
+Basic information about an encoding.
+*/
+typedef struct sox_encodings_info_t {
+  sox_encodings_flags_t flags; /**< lossy once (lossy1), lossy twice (lossy2), or lossless (none). */
+  char const * name;           /**< encoding name. */
+  char const * desc;           /**< encoding description. */
+} sox_encodings_info_t;
+
+/**
+Client API:
+Encoding parameters.
+*/
+typedef struct sox_encodinginfo_t {
+  sox_encoding_t encoding; /**< format of sample numbers */
+  unsigned bits_per_sample;/**< 0 if unknown or variable; uncompressed value if lossless; compressed value if lossy */
+  double compression;      /**< compression factor (where applicable) */
+
+  /**
+  Should bytes be reversed? If this is default during sox_open_read or
+  sox_open_write, libSoX will set them to either no or yes according to the
+  machine or format default.
+  */
+  sox_option_t reverse_bytes;
+
+  /**
+  Should nibbles be reversed? If this is default during sox_open_read or
+  sox_open_write, libSoX will set them to either no or yes according to the
+  machine or format default.
+  */
+  sox_option_t reverse_nibbles;
+
+  /**
+  Should bits be reversed? If this is default during sox_open_read or
+  sox_open_write, libSoX will set them to either no or yes according to the
+  machine or format default.
+  */
+  sox_option_t reverse_bits;
+
+  /**
+  If set to true, the format should reverse its default endianness.
+  */
+  sox_bool opposite_endian;
+} sox_encodinginfo_t;
+
+/**
+Client API:
+Looping parameters (out-of-band data).
+*/
+typedef struct sox_loopinfo_t {
+  sox_uint64_t  start;  /**< first sample */
+  sox_uint64_t  length; /**< length */
+  unsigned      count;  /**< number of repeats, 0=forever */
+  unsigned char type;   /**< 0=no, 1=forward, 2=forward/back (see sox_loop_* for valid values). */
+} sox_loopinfo_t;
+
+/**
+Client API:
+Instrument information.
+*/
+typedef struct sox_instrinfo_t{
+  signed char MIDInote;   /**< for unity pitch playback */
+  signed char MIDIlow;    /**< MIDI pitch-bend low range */
+  signed char MIDIhi;     /**< MIDI pitch-bend high range */
+  unsigned char loopmode; /**< 0=no, 1=forward, 2=forward/back (see sox_loop_* values) */
+  unsigned nloops;  /**< number of active loops (max SOX_MAX_NLOOPS). */
+} sox_instrinfo_t;
+
+/**
+Client API:
+File buffer info.  Holds info so that data can be read in blocks.
+*/
+typedef struct sox_fileinfo_t {
+  char          *buf;                 /**< Pointer to data buffer */
+  size_t        size;                 /**< Size of buffer in bytes */
+  size_t        count;                /**< Count read into buffer */
+  size_t        pos;                  /**< Position in buffer */
+} sox_fileinfo_t;
+
+/**
+Client API:
+Handler structure defined by each format.
+*/
+struct sox_format_handler_t {
+  unsigned     sox_lib_version_code;  /**< Checked on load; must be 1st in struct*/
+  char         const * description;   /**< short description of format */
+  char         const * const * names; /**< null-terminated array of filename extensions that are handled by this format */
+  unsigned int flags;                 /**< File flags (SOX_FILE_* values). */
+  sox_format_handler_startread startread; /**< called to initialize reader (decoder) */
+  sox_format_handler_read read;       /**< called to read (decode) a block of samples */
+  sox_format_handler_stopread stopread; /**< called to close reader (decoder); may be null if no closing necessary */
+  sox_format_handler_startwrite startwrite; /**< called to initialize writer (encoder) */
+  sox_format_handler_write write;     /**< called to write (encode) a block of samples */
+  sox_format_handler_stopwrite stopwrite; /**< called to close writer (decoder); may be null if no closing necessary */
+  sox_format_handler_seek seek;       /**< called to reposition reader; may be null if not supported */
+
+  /**
+  Array of values indicating the encodings and precisions supported for
+  writing (encoding). Precisions specified with default precision first.
+  Encoding, precision, precision, ..., 0, repeat. End with one more 0.
+  Example:
+  unsigned const * formats = {
+    SOX_ENCODING_SIGN2, 16, 24, 0, // Support SIGN2 at 16 and 24 bits, default to 16 bits.
+    SOX_ENCODING_UNSIGNED, 8, 0,   // Support UNSIGNED at 8 bits, default to 8 bits.
+    0 // No more supported encodings.
+  };
+  */
+  unsigned     const * write_formats;
+
+  /**
+  Array of sample rates (samples per second) supported for writing (encoding).
+  NULL if all (or almost all) rates are supported. End with 0.
+  */
+  sox_rate_t   const * write_rates;
+
+  /**
+  SoX will automatically allocate a buffer in which the handler can store data.
+  Specify the size of the buffer needed here. Usually this will be sizeof(your_struct).
+  The buffer will be allocated and zeroed before the call to startread/startwrite.
+  The buffer will be freed after the call to stopread/stopwrite.
+  The buffer will be provided via format.priv in each call to the handler.
+  */
+  size_t       priv_size;
+};
+
+/**
+Client API:
+Comments, instrument info, loop info (out-of-band data).
+*/
+typedef struct sox_oob_t{
+  /* Decoded: */
+  sox_comments_t   comments;              /**< Comment strings in id=value format. */
+  sox_instrinfo_t  instr;                 /**< Instrument specification */
+  sox_loopinfo_t   loops[SOX_MAX_NLOOPS]; /**< Looping specification */
+
+  /* TBD: Non-decoded chunks, etc: */
+} sox_oob_t;
+
+/**
+Client API:
+Data passed to/from the format handler
+*/
+struct sox_format_t {
+  char             * filename;      /**< File name */
+
+  /**
+  Signal specifications for reader (decoder) or writer (encoder):
+  sample rate, number of channels, precision, length, headroom multiplier.
+  Any info specified by the user is here on entry to startread or
+  startwrite. Info will be SOX_UNSPEC if the user provided no info.
+  At exit from startread, should be completely filled in, using
+  either data from the file's headers (if available) or whatever
+  the format is guessing/assuming (if header data is not available).
+  At exit from startwrite, should be completely filled in, using
+  either the data that was specified, or values chosen by the format
+  based on the format's defaults or capabilities.
+  */
+  sox_signalinfo_t signal;
+
+  /**
+  Encoding specifications for reader (decoder) or writer (encoder):
+  encoding (sample format), bits per sample, compression rate, endianness.
+  Should be filled in by startread. Values specified should be used
+  by startwrite when it is configuring the encoding parameters.
+  */
+  sox_encodinginfo_t encoding;
+
+  char             * filetype;      /**< Type of file, as determined by header inspection or libmagic. */
+  sox_oob_t        oob;             /**< comments, instrument info, loop info (out-of-band data) */
+  sox_bool         seekable;        /**< Can seek on this file */
+  char             mode;            /**< Read or write mode ('r' or 'w') */
+  sox_uint64_t     olength;         /**< Samples * chans written to file */
+  sox_uint64_t     clips;           /**< Incremented if clipping occurs */
+  int              sox_errno;       /**< Failure error code */
+  char             sox_errstr[256]; /**< Failure error text */
+  void             * fp;            /**< File stream pointer */
+  lsx_io_type      io_type;         /**< Stores whether this is a file, pipe or URL */
+  sox_uint64_t     tell_off;        /**< Current offset within file */
+  sox_uint64_t     data_start;      /**< Offset at which headers end and sound data begins (set by lsx_check_read_params) */
+  sox_format_handler_t handler;     /**< Format handler for this file */
+  void             * priv;          /**< Format handler's private data area */
+};
+
+/**
+Client API:
+Information about a loaded format handler, including the format name and a
+function pointer that can be invoked to get additional information about the
+format.
+*/
+typedef struct sox_format_tab_t {
+  char *name;         /**< Name of format handler */
+  sox_format_fn_t fn; /**< Function to call to get format handler's information */
+} sox_format_tab_t;
+
+/**
+Client API:
+Global parameters for effects.
+*/
+typedef struct sox_effects_globals_t {
+  sox_plot_t plot;         /**< To help the user choose effect & options */
+  sox_globals_t * global_info; /**< Pointer to associated SoX globals */
+} sox_effects_globals_t;
+
+/**
+Client API:
+Effect handler information.
+*/
+struct sox_effect_handler_t {
+  char const * name;  /**< Effect name */
+  char const * usage; /**< Short explanation of parameters accepted by effect */
+  unsigned int flags; /**< Combination of SOX_EFF_* flags */
+  sox_effect_handler_getopts getopts; /**< Called to parse command-line arguments (called once per effect). */
+  sox_effect_handler_start start;     /**< Called to initialize effect (called once per flow). */
+  sox_effect_handler_flow flow;       /**< Called to process samples. */
+  sox_effect_handler_drain drain;     /**< Called to finish getting output after input is complete. */
+  sox_effect_handler_stop stop;       /**< Called to shut down effect (called once per flow). */
+  sox_effect_handler_kill kill;       /**< Called to shut down effect (called once per effect). */
+  size_t       priv_size;             /**< Size of private data SoX should pre-allocate for effect */
+};
+
+/**
+Client API:
+Effect information.
+*/
+struct sox_effect_t {
+  sox_effects_globals_t    * global_info; /**< global effect parameters */
+  sox_signalinfo_t         in_signal;     /**< Information about the incoming data stream */
+  sox_signalinfo_t         out_signal;    /**< Information about the outgoing data stream */
+  sox_encodinginfo_t       const * in_encoding;  /**< Information about the incoming data encoding */
+  sox_encodinginfo_t       const * out_encoding; /**< Information about the outgoing data encoding */
+  sox_effect_handler_t     handler;   /**< The handler for this effect */
+  sox_sample_t             * obuf;    /**< output buffer */
+  size_t                   obeg;      /**< output buffer: start of valid data section */
+  size_t                   oend;      /**< output buffer: one past valid data section (oend-obeg is length of current content) */
+  size_t               imin;          /**< minimum input buffer content required for calling this effect's flow function; set via lsx_effect_set_imin() */
+  sox_uint64_t         clips;         /**< increment if clipping occurs */
+  size_t               flows;         /**< 1 if MCHAN, number of chans otherwise */
+  size_t               flow;          /**< flow number */
+  void                 * priv;        /**< Effect's private data area (each flow has a separate copy) */
+};
+
+/**
+Client API:
+Chain of effects to be applied to a stream.
+*/
+typedef struct sox_effects_chain_t {
+  sox_effect_t **effects;                  /**< Table of effects to be applied to a stream */
+  unsigned table_size;                     /**< Number of entries in effects table */
+  unsigned length;                         /**< Number of effects to be applied */
+  sox_sample_t **ibufc;                    /**< Channel interleave buffer */
+  sox_sample_t **obufc;                    /**< Channel interleave buffer */
+  sox_effects_globals_t global_info;       /**< Copy of global effects settings */
+  sox_encodinginfo_t const * in_enc;       /**< Input encoding */
+  sox_encodinginfo_t const * out_enc;      /**< Output encoding */
+} sox_effects_chain_t;
+
+/*****************************************************************************
+Functions:
+*****************************************************************************/
+
+/**
+Client API:
+Returns version number string of libSoX, for example, "14.4.0".
+ at returns The version number string of libSoX, for example, "14.4.0".
+*/
+LSX_RETURN_VALID_Z LSX_RETURN_PURE
+char const *
+LSX_API
+sox_version(void);
+
+/**
+Client API:
+Returns information about this build of libsox.
+ at returns Pointer to a version information structure.
+*/
+LSX_RETURN_VALID LSX_RETURN_PURE
+sox_version_info_t const *
+LSX_API
+sox_version_info(void);
+
+/**
+Client API:
+Returns a pointer to the structure with libSoX's global settings.
+ at returns a pointer to the structure with libSoX's global settings.
+*/
+LSX_RETURN_VALID LSX_RETURN_PURE
+sox_globals_t *
+LSX_API
+sox_get_globals(void);
+
+/**
+Client API:
+Deprecated macro that returns the structure with libSoX's global settings
+as an lvalue.
+*/
+#define sox_globals (*sox_get_globals())
+
+/**
+Client API:
+Returns a pointer to the list of available encodings.
+End of list indicated by name == NULL.
+ at returns pointer to the list of available encodings.
+*/
+LSX_RETURN_ARRAY LSX_RETURN_PURE
+sox_encodings_info_t const *
+LSX_API
+sox_get_encodings_info(void);
+
+/**
+Client API:
+Deprecated macro that returns the list of available encodings.
+End of list indicated by name == NULL.
+*/
+#define sox_encodings_info (sox_get_encodings_info())
+
+/**
+Client API:
+Fills in an encodinginfo with default values.
+*/
+void
+LSX_API
+sox_init_encodinginfo(
+    LSX_PARAM_OUT sox_encodinginfo_t * e /**< Pointer to uninitialized encoding info structure to be initialized. */
+    );
+
+/**
+Client API:
+Given an encoding (for example, SIGN2) and the encoded bits_per_sample (for
+example, 16), returns the number of useful bits per sample in the decoded data
+(for example, 16), or returns 0 to indicate that the value returned by the
+format handler should be used instead of a pre-determined precision.
+ at returns the number of useful bits per sample in the decoded data (for example
+16), or returns 0 to indicate that the value returned by the format handler
+should be used instead of a pre-determined precision.
+*/
+LSX_RETURN_PURE
+unsigned
+LSX_API
+sox_precision(
+    sox_encoding_t encoding,   /**< Encoding for which to lookup precision information. */
+    unsigned bits_per_sample   /**< The number of encoded bits per sample. */
+    );
+
+/**
+Client API:
+Returns the number of items in the metadata block.
+ at returns the number of items in the metadata block.
+*/
+size_t
+LSX_API
+sox_num_comments(
+    LSX_PARAM_IN_OPT sox_comments_t comments /**< Metadata block. */
+    );
+
+/**
+Client API:
+Adds an "id=value" item to the metadata block.
+*/
+void
+LSX_API
+sox_append_comment(
+    LSX_PARAM_DEREF_PRE_MAYBENULL LSX_PARAM_DEREF_POST_NOTNULL sox_comments_t * comments, /**< Metadata block. */
+    LSX_PARAM_IN_Z char const * item /**< Item to be added in "id=value" format. */
+    );
+
+/**
+Client API:
+Adds a newline-delimited list of "id=value" items to the metadata block.
+*/
+void
+LSX_API
+sox_append_comments(
+    LSX_PARAM_DEREF_PRE_MAYBENULL LSX_PARAM_DEREF_POST_NOTNULL sox_comments_t * comments, /**< Metadata block. */
+    LSX_PARAM_IN_Z char const * items /**< Newline-separated list of items to be added, for example "id1=value1\\nid2=value2". */
+    );
+
+/**
+Client API:
+Duplicates the metadata block.
+ at returns the copied metadata block.
+*/
+LSX_RETURN_OPT
+sox_comments_t
+LSX_API
+sox_copy_comments(
+    LSX_PARAM_IN_OPT sox_comments_t comments /**< Metadata block to copy. */
+    );
+
+/**
+Client API:
+Frees the metadata block.
+*/
+void
+LSX_API
+sox_delete_comments(
+    LSX_PARAM_DEREF_PRE_MAYBENULL LSX_PARAM_DEREF_POST_NULL sox_comments_t * comments /**< Metadata block. */
+    );
+
+/**
+Client API:
+If "id=value" is found, return value, else return null.
+ at returns value, or null if value not found.
+*/
+LSX_RETURN_OPT
+char const *
+LSX_API
+sox_find_comment(
+    LSX_PARAM_IN_OPT sox_comments_t comments, /**< Metadata block in which to search. */
+    LSX_PARAM_IN_Z char const * id /**< Id for which to search */
+    );
+
+/**
+Client API:
+Find and load format handler plugins.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_format_init(void);
+
+/**
+Client API:
+Unload format handler plugins.
+*/
+void
+LSX_API
+sox_format_quit(void);
+
+/**
+Client API:
+Initialize effects library.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_init(void);
+
+/**
+Client API:
+Close effects library and unload format handler plugins.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_quit(void);
+
+/**
+Client API:
+Returns the table of format handler names and functions.
+ at returns the table of format handler names and functions.
+*/
+LSX_RETURN_ARRAY LSX_RETURN_PURE
+sox_format_tab_t const *
+LSX_API
+sox_get_format_fns(void);
+
+/**
+Client API:
+Deprecated macro that returns the table of format handler names and functions.
+*/
+#define sox_format_fns (sox_get_format_fns())
+
+/**
+Client API:
+Opens a decoding session for a file. Returned handle must be closed with sox_close().
+ at returns The handle for the new session, or null on failure.
+*/
+LSX_RETURN_OPT
+sox_format_t *
+LSX_API
+sox_open_read(
+    LSX_PARAM_IN_Z   char               const * path,      /**< Path to file to be opened (required). */
+    LSX_PARAM_IN_OPT sox_signalinfo_t   const * signal,    /**< Information already known about audio stream, or NULL if none. */
+    LSX_PARAM_IN_OPT sox_encodinginfo_t const * encoding,  /**< Information already known about sample encoding, or NULL if none. */
+    LSX_PARAM_IN_OPT_Z char             const * filetype   /**< Previously-determined file type, or NULL to auto-detect. */
+    );
+
+/**
+Client API:
+Opens a decoding session for a memory buffer. Returned handle must be closed with sox_close().
+ at returns The handle for the new session, or null on failure.
+*/
+LSX_RETURN_OPT
+sox_format_t *
+LSX_API
+sox_open_mem_read(
+    LSX_PARAM_IN_BYTECOUNT(buffer_size) void  * buffer,     /**< Pointer to audio data buffer (required). */
+    size_t                                      buffer_size,/**< Number of bytes to read from audio data buffer. */
+    LSX_PARAM_IN_OPT sox_signalinfo_t   const * signal,     /**< Information already known about audio stream, or NULL if none. */
+    LSX_PARAM_IN_OPT sox_encodinginfo_t const * encoding,   /**< Information already known about sample encoding, or NULL if none. */
+    LSX_PARAM_IN_OPT_Z char             const * filetype    /**< Previously-determined file type, or NULL to auto-detect. */
+    );
+
+/**
+Client API:
+Returns true if the format handler for the specified file type supports the specified encoding.
+ at returns true if the format handler for the specified file type supports the specified encoding.
+*/
+sox_bool
+LSX_API
+sox_format_supports_encoding(
+    LSX_PARAM_IN_OPT_Z char               const * path,       /**< Path to file to be examined (required if filetype is NULL). */
+    LSX_PARAM_IN_OPT_Z char               const * filetype,   /**< Previously-determined file type, or NULL to use extension from path. */
+    LSX_PARAM_IN       sox_encodinginfo_t const * encoding    /**< Encoding for which format handler should be queried. */
+    );
+
+/**
+Client API:
+Gets the format handler for a specified file type.
+ at returns The found format handler, or null if not found.
+*/
+LSX_RETURN_OPT
+sox_format_handler_t const *
+LSX_API
+sox_write_handler(
+    LSX_PARAM_IN_OPT_Z char               const * path,         /**< Path to file (required if filetype is NULL). */
+    LSX_PARAM_IN_OPT_Z char               const * filetype,     /**< Filetype for which handler is needed, or NULL to use extension from path. */
+    LSX_PARAM_OUT_OPT  char               const * * filetype1   /**< Receives the filetype that was detected. Pass NULL if not needed. */
+    );
+
+/**
+Client API:
+Opens an encoding session for a file. Returned handle must be closed with sox_close().
+ at returns The new session handle, or null on failure.
+*/
+LSX_RETURN_OPT
+sox_format_t *
+LSX_API
+sox_open_write(
+    LSX_PARAM_IN_Z     char               const * path,     /**< Path to file to be written (required). */
+    LSX_PARAM_IN       sox_signalinfo_t   const * signal,   /**< Information about desired audio stream (required). */
+    LSX_PARAM_IN_OPT   sox_encodinginfo_t const * encoding, /**< Information about desired sample encoding, or NULL to use defaults. */
+    LSX_PARAM_IN_OPT_Z char               const * filetype, /**< Previously-determined file type, or NULL to auto-detect. */
+    LSX_PARAM_IN_OPT   sox_oob_t          const * oob,      /**< Out-of-band data to add to file, or NULL if none. */
+    LSX_PARAM_IN_OPT   sox_bool           (LSX_API * overwrite_permitted)(LSX_PARAM_IN_Z char const * filename) /**< Called if file exists to determine whether overwrite is ok. */
+    );
+
+/**
+Client API:
+Opens an encoding session for a memory buffer. Returned handle must be closed with sox_close().
+ at returns The new session handle, or null on failure.
+*/
+LSX_RETURN_OPT
+sox_format_t *
+LSX_API
+sox_open_mem_write(
+    LSX_PARAM_OUT_BYTECAP(buffer_size) void                     * buffer,      /**< Pointer to audio data buffer that receives data (required). */
+    LSX_PARAM_IN                       size_t                     buffer_size, /**< Maximum number of bytes to write to audio data buffer. */
+    LSX_PARAM_IN                       sox_signalinfo_t   const * signal,      /**< Information about desired audio stream (required). */
+    LSX_PARAM_IN_OPT                   sox_encodinginfo_t const * encoding,    /**< Information about desired sample encoding, or NULL to use defaults. */
+    LSX_PARAM_IN_OPT_Z                 char               const * filetype,    /**< Previously-determined file type, or NULL to auto-detect. */
+    LSX_PARAM_IN_OPT                   sox_oob_t          const * oob          /**< Out-of-band data to add to file, or NULL if none. */
+    );
+
+/**
+Client API:
+Opens an encoding session for a memstream buffer. Returned handle must be closed with sox_close().
+ at returns The new session handle, or null on failure.
+*/
+LSX_RETURN_OPT
+sox_format_t *
+LSX_API
+sox_open_memstream_write(
+    LSX_PARAM_OUT      char                     * * buffer_ptr,    /**< Receives pointer to audio data buffer that receives data (required). */
+    LSX_PARAM_OUT      size_t                   * buffer_size_ptr, /**< Receives size of data written to audio data buffer (required). */
+    LSX_PARAM_IN       sox_signalinfo_t   const * signal,          /**< Information about desired audio stream (required). */
+    LSX_PARAM_IN_OPT   sox_encodinginfo_t const * encoding,        /**< Information about desired sample encoding, or NULL to use defaults. */
+    LSX_PARAM_IN_OPT_Z char               const * filetype,        /**< Previously-determined file type, or NULL to auto-detect. */
+    LSX_PARAM_IN_OPT   sox_oob_t          const * oob              /**< Out-of-band data to add to file, or NULL if none. */
+    );
+
+/**
+Client API:
+Reads samples from a decoding session into a sample buffer.
+ at returns Number of samples decoded, or 0 for EOF.
+*/
+size_t
+LSX_API
+sox_read(
+    LSX_PARAM_INOUT sox_format_t * ft, /**< Format pointer. */
+    LSX_PARAM_OUT_CAP_POST_COUNT(len,return) sox_sample_t *buf, /**< Buffer from which to read samples. */
+    size_t len /**< Number of samples available in buf. */
+    );
+
+/**
+Client API:
+Writes samples to an encoding session from a sample buffer.
+ at returns Number of samples encoded.
+*/
+size_t
+LSX_API
+sox_write(
+    LSX_PARAM_INOUT sox_format_t * ft, /**< Format pointer. */
+    LSX_PARAM_IN_COUNT(len) sox_sample_t const * buf, /**< Buffer from which to read samples. */
+    size_t len /**< Number of samples available in buf. */
+    );
+
+/**
+Client API:
+Closes an encoding or decoding session.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_close(
+    LSX_PARAM_INOUT sox_format_t * ft /**< Format pointer. */
+    );
+
+/**
+Client API:
+Sets the location at which next samples will be decoded. Returns SOX_SUCCESS if successful.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_seek(
+    LSX_PARAM_INOUT sox_format_t * ft, /**< Format pointer. */
+    sox_uint64_t offset, /**< Sample offset at which to position reader. */
+    int whence /**< Set to SOX_SEEK_SET. */
+    );
+
+/**
+Client API:
+Finds a format handler by name.
+ at returns Format handler data, or null if not found.
+*/
+LSX_RETURN_OPT
+sox_format_handler_t const *
+LSX_API
+sox_find_format(
+    LSX_PARAM_IN_Z char const * name, /**< Name of format handler to find. */
+    sox_bool ignore_devices /**< Set to true to ignore device names. */
+    );
+
+/**
+Client API:
+Returns global parameters for effects
+ at returns global parameters for effects.
+*/
+LSX_RETURN_VALID LSX_RETURN_PURE
+sox_effects_globals_t *
+LSX_API
+sox_get_effects_globals(void);
+
+/**
+Client API:
+Deprecated macro that returns global parameters for effects.
+*/
+#define sox_effects_globals (*sox_get_effects_globals())
+
+/**
+Client API:
+Finds the effect handler with the given name.
+ at returns Effect pointer, or null if not found.
+*/
+LSX_RETURN_OPT LSX_RETURN_PURE
+sox_effect_handler_t const *
+LSX_API
+sox_find_effect(
+    LSX_PARAM_IN_Z char const * name /**< Name of effect to find. */
+    );
+
+/**
+Client API:
+Creates an effect using the given handler.
+ at returns The new effect, or null if not found.
+*/
+LSX_RETURN_OPT
+sox_effect_t *
+LSX_API
+sox_create_effect(
+    LSX_PARAM_IN sox_effect_handler_t const * eh /**< Handler to use for effect. */
+    );
+
+/**
+Client API:
+Applies the command-line options to the effect.
+ at returns the number of arguments consumed.
+*/
+int
+LSX_API
+sox_effect_options(
+    LSX_PARAM_IN sox_effect_t *effp, /**< Effect pointer on which to set options. */
+    int argc, /**< Number of arguments in argv. */
+    LSX_PARAM_IN_COUNT(argc) char * const argv[] /**< Array of command-line options. */
+    );
+
+/**
+Client API:
+Returns an array containing the known effect handlers.
+ at returns An array containing the known effect handlers.
+*/
+LSX_RETURN_VALID_Z LSX_RETURN_PURE
+sox_effect_fn_t const *
+LSX_API
+sox_get_effect_fns(void);
+
+/**
+Client API:
+Deprecated macro that returns an array containing the known effect handlers.
+*/
+#define sox_effect_fns (sox_get_effect_fns())
+
+/**
+Client API:
+Initializes an effects chain. Returned handle must be closed with sox_delete_effects_chain().
+ at returns Handle, or null on failure.
+*/
+LSX_RETURN_OPT
+sox_effects_chain_t *
+LSX_API
+sox_create_effects_chain(
+    LSX_PARAM_IN sox_encodinginfo_t const * in_enc, /**< Input encoding. */
+    LSX_PARAM_IN sox_encodinginfo_t const * out_enc /**< Output encoding. */
+    );
+
+/**
+Client API:
+Closes an effects chain.
+*/
+void
+LSX_API
+sox_delete_effects_chain(
+    LSX_PARAM_INOUT sox_effects_chain_t *ecp /**< Effects chain pointer. */
+    );
+
+/**
+Client API:
+Adds an effect to the effects chain, returns SOX_SUCCESS if successful.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_add_effect(
+    LSX_PARAM_INOUT sox_effects_chain_t * chain, /**< Effects chain to which effect should be added . */
+    LSX_PARAM_INOUT sox_effect_t * effp, /**< Effect to be added. */
+    LSX_PARAM_INOUT sox_signalinfo_t * in, /**< Input format. */
+    LSX_PARAM_IN    sox_signalinfo_t const * out /**< Output format. */
+    );
+
+/**
+Client API:
+Runs the effects chain, returns SOX_SUCCESS if successful.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_flow_effects(
+    LSX_PARAM_INOUT  sox_effects_chain_t * chain, /**< Effects chain to run. */
+    LSX_PARAM_IN_OPT sox_flow_effects_callback callback, /**< Callback for monitoring flow progress. */
+    LSX_PARAM_IN_OPT void * client_data /**< Data to pass into callback. */
+    );
+
+/**
+Client API:
+Gets the number of clips that occurred while running an effects chain.
+ at returns the number of clips that occurred while running an effects chain.
+*/
+sox_uint64_t
+LSX_API
+sox_effects_clips(
+    LSX_PARAM_IN sox_effects_chain_t * chain /**< Effects chain from which to read clip information. */
+    );
+
+/**
+Client API:
+Shuts down an effect (calls stop on each of its flows).
+ at returns the number of clips from all flows.
+*/
+sox_uint64_t
+LSX_API
+sox_stop_effect(
+    LSX_PARAM_INOUT_COUNT(effp->flows) sox_effect_t * effp /**< Effect to stop. */
+    );
+
+/**
+Client API:
+Adds an already-initialized effect to the end of the chain.
+*/
+void
+LSX_API
+sox_push_effect_last(
+    LSX_PARAM_INOUT sox_effects_chain_t * chain, /**< Effects chain to which effect should be added. */
+    LSX_PARAM_INOUT sox_effect_t * effp /**< Effect to be added. */
+    );
+
+/**
+Client API:
+Removes and returns an effect from the end of the chain.
+ at returns the removed effect, or null if no effects.
+*/
+LSX_RETURN_OPT
+sox_effect_t *
+LSX_API
+sox_pop_effect_last(
+    LSX_PARAM_INOUT sox_effects_chain_t *chain /**< Effects chain from which to remove an effect. */
+    );
+
+/**
+Client API:
+Shut down and delete an effect.
+*/
+void
+LSX_API
+sox_delete_effect(
+    LSX_PARAM_INOUT_COUNT(effp->flows) sox_effect_t *effp /**< Effect to be deleted. */
+    );
+
+/**
+Client API:
+Shut down and delete the last effect in the chain.
+*/
+void
+LSX_API
+sox_delete_effect_last(
+    LSX_PARAM_INOUT sox_effects_chain_t *chain /**< Effects chain from which to remove the last effect. */
+    );
+
+/**
+Client API:
+Shut down and delete all effects in the chain.
+*/
+void
+LSX_API
+sox_delete_effects(
+    LSX_PARAM_INOUT sox_effects_chain_t *chain /**< Effects chain from which to delete effects. */
+    );
+
+/**
+Client API:
+Gets the sample offset of the start of the trim, useful for efficiently
+skipping the part that will be trimmed anyway (get trim start, seek, then
+clear trim start).
+ at returns the sample offset of the start of the trim.
+*/
+sox_uint64_t
+LSX_API
+sox_trim_get_start(
+    LSX_PARAM_IN sox_effect_t * effp /**< Trim effect. */
+    );
+
+/**
+Client API:
+Clears the start of the trim to 0.
+*/
+void
+LSX_API
+sox_trim_clear_start(
+    LSX_PARAM_INOUT sox_effect_t * effp /**< Trim effect. */
+    );
+
+/**
+Client API:
+Returns true if the specified file is a known playlist file type.
+ at returns true if the specified file is a known playlist file type.
+*/
+sox_bool
+LSX_API
+sox_is_playlist(
+    LSX_PARAM_IN_Z char const * filename /**< Name of file to examine. */
+    );
+
+/**
+Client API:
+Parses the specified playlist file.
+ at returns SOX_SUCCESS if successful.
+*/
+int
+LSX_API
+sox_parse_playlist(
+    LSX_PARAM_IN sox_playlist_callback_t callback, /**< Callback to call for each item in the playlist. */
+    void * p, /**< Data to pass to callback. */
+    LSX_PARAM_IN char const * const listname /**< Filename of playlist file. */
+    );
+
+/**
+Client API:
+Converts a SoX error code into an error string.
+ at returns error string corresponding to the specified error code,
+or a generic message if the error code is not recognized.
+*/
+LSX_RETURN_VALID_Z LSX_RETURN_PURE
+char const *
+LSX_API
+sox_strerror(
+    int sox_errno /**< Error code to look up. */
+    );
+
+/**
+Client API:
+Gets the basename of the specified file; for example, the basename of
+"/a/b/c.d" would be "c".
+ at returns the number of characters written to base_buffer, excluding the null,
+or 0 on failure.
+*/
+size_t
+LSX_API
+sox_basename(
+    LSX_PARAM_OUT_Z_CAP_POST_COUNT(base_buffer_len,return) char * base_buffer, /**< Buffer into which basename should be written. */
+    size_t base_buffer_len, /**< Size of base_buffer, in bytes. */
+    LSX_PARAM_IN_Z char const * filename /**< Filename from which to extract basename. */
+    );
+
+/*****************************************************************************
+Internal API:
+WARNING - The items in this section are subject to instability. They only
+exist in the public header because sox (the application) currently uses them.
+These may be changed or removed in future versions of libSoX.
+*****************************************************************************/
+
+/**
+Plugins API:
+Print a fatal error in libSoX.
+*/
+void
+LSX_API
+lsx_fail_impl(
+    LSX_PARAM_IN_PRINTF char const * fmt, /**< printf-style format string. */
+    ...)
+    LSX_PRINTF12;
+
+/**
+Plugins API:
+Print a warning in libSoX.
+*/
+void
+LSX_API
+lsx_warn_impl(
+    LSX_PARAM_IN_PRINTF char const * fmt, /**< printf-style format string. */
+    ...)
+    LSX_PRINTF12;
+
+/**
+Plugins API:
+Print an informational message in libSoX.
+*/
+void
+LSX_API
+lsx_report_impl(
+    LSX_PARAM_IN_PRINTF char const * fmt, /**< printf-style format string. */
+    ...)
+    LSX_PRINTF12;
+
+/**
+Plugins API:
+Print a debug message in libSoX.
+*/
+void
+LSX_API
+lsx_debug_impl(
+    LSX_PARAM_IN_PRINTF char const * fmt, /**< printf-style format string. */
+    ...)
+    LSX_PRINTF12;
+
+/**
+Plugins API:
+Report a fatal error in libSoX; printf-style arguments must follow.
+*/
+#define lsx_fail       sox_get_globals()->subsystem=__FILE__,lsx_fail_impl
+
+/**
+Plugins API:
+Report a warning in libSoX; printf-style arguments must follow.
+*/
+#define lsx_warn       sox_get_globals()->subsystem=__FILE__,lsx_warn_impl
+
+/**
+Plugins API:
+Report an informational message in libSoX; printf-style arguments must follow.
+*/
+#define lsx_report     sox_get_globals()->subsystem=__FILE__,lsx_report_impl
+
+/**
+Plugins API:
+Report a debug message in libSoX; printf-style arguments must follow.
+*/
+#define lsx_debug      sox_get_globals()->subsystem=__FILE__,lsx_debug_impl
+
+/**
+Plugins API:
+String name and integer values for enumerated types (type metadata), for use
+with LSX_ENUM_ITEM, lsx_find_enum_text, and lsx_find_enum_value.
+*/
+typedef struct lsx_enum_item {
+    char const *text; /**< String name of enumeration. */
+    unsigned value;   /**< Integer value of enumeration. */
+} lsx_enum_item;
+
+/**
+Plugins API:
+Declares a static instance of an lsx_enum_item structure in format
+{ "item", prefixitem }, for use in declaring lsx_enum_item[] arrays.
+ at param prefix The prefix to prepend to the item in the enumeration symbolic name.
+ at param item   The user-visible text name of the item (must also be a valid C symbol name).
+*/
+#define LSX_ENUM_ITEM(prefix, item) {#item, prefix##item},
+
+/**
+Plugins API:
+Flags for use with lsx_find_enum_item.
+*/
+enum
+{
+    lsx_find_enum_item_none = 0, /**< Default parameters (case-insensitive). */
+    lsx_find_enum_item_case_sensitive = 1 /**< Enable case-sensitive search. */
+};
+
+/**
+Plugins API:
+Looks up an enumeration by name in an array of lsx_enum_items.
+ at returns the corresponding item, or null if not found.
+*/
+LSX_RETURN_OPT LSX_RETURN_PURE
+lsx_enum_item const *
+LSX_API
+lsx_find_enum_text(
+    LSX_PARAM_IN_Z char const * text, /**< Name of enumeration to find. */
+    LSX_PARAM_IN lsx_enum_item const * lsx_enum_items, /**< Array of items to search, with text == NULL for last item. */
+    int flags /**< Search flags: 0 (case-insensitive) or lsx_find_enum_item_case_sensitive (case-sensitive). */
+    );
+
+/**
+Plugins API:
+Looks up an enumeration by value in an array of lsx_enum_items.
+ at returns the corresponding item, or null if not found.
+*/
+LSX_RETURN_OPT LSX_RETURN_PURE
+lsx_enum_item const *
+LSX_API
+lsx_find_enum_value(
+    unsigned value, /**< Enumeration value to find. */
+    LSX_PARAM_IN lsx_enum_item const * lsx_enum_items /**< Array of items to search, with text == NULL for last item. */
+    );
+
+/**
+Plugins API:
+Looks up a command-line argument in a set of enumeration names, showing an
+error message if the argument is not found in the set of names.
+ at returns The enumeration value corresponding to the matching enumeration, or
+INT_MAX if the argument does not match any enumeration name.
+*/
+LSX_RETURN_PURE
+int
+LSX_API
+lsx_enum_option(
+    int c, /**< Option character to which arg is associated, for example with -a, c would be 'a'. */
+    LSX_PARAM_IN_Z char const * arg, /**< Argument to find in enumeration list. */
+    LSX_PARAM_IN lsx_enum_item const * items /**< Array of items to search, with text == NULL for last item. */
+    );
+
+/**
+Plugins API:
+Determines whether the specified string ends with the specified suffix (case-sensitive).
+ at returns true if the specified string ends with the specified suffix.
+*/
+LSX_RETURN_PURE
+sox_bool
+LSX_API
+lsx_strends(
+    LSX_PARAM_IN_Z char const * str, /**< String to search. */
+    LSX_PARAM_IN_Z char const * end  /**< Suffix to search for. */
+    );
+
+/**
+Plugins API:
+Finds the file extension for a filename.
+ at returns the file extension, not including the '.', or null if filename does
+not have an extension.
+*/
+LSX_RETURN_VALID_Z LSX_RETURN_PURE
+char const *
+LSX_API
+lsx_find_file_extension(
+    LSX_PARAM_IN_Z char const * pathname /**< Filename to search for extension. */
+    );
+
+/**
+Plugins API:
+Formats the specified number with up to three significant figures and adds a
+metric suffix in place of the exponent, such as 1.23G.
+ at returns A static buffer with the formatted number, valid until the next time
+this function is called (note: not thread safe).
+*/
+LSX_RETURN_VALID_Z
+char const *
+LSX_API
+lsx_sigfigs3(
+    double number /**< Number to be formatted. */
+    );
+
+/**
+Plugins API:
+Formats the specified number as a percentage, showing up to three significant
+figures.
+ at returns A static buffer with the formatted number, valid until the next time
+this function is called (note: not thread safe).
+*/
+LSX_RETURN_VALID_Z
+char const *
+LSX_API
+lsx_sigfigs3p(
+    double percentage /**< Number to be formatted. */
+    );
+
+/**
+Plugins API:
+Allocates, deallocates, or resizes; like C's realloc, except that this version
+terminates the running application if unable to allocate the requested memory.
+ at returns New buffer, or null if buffer was freed.
+*/
+LSX_RETURN_OPT
+void *
+LSX_API
+lsx_realloc(
+    LSX_PARAM_IN_OPT void *ptr, /**< Pointer to be freed or resized, or null if allocating a new buffer. */
+    size_t newsize /**< New size for buffer, or 0 to free the buffer. */
+    );
+
+/**
+Plugins API:
+Like strcmp, except that the characters are compared without regard to case.
+ at returns 0 (s1 == s2), negative (s1 < s2), or positive (s1 > s2).
+*/
+LSX_RETURN_PURE
+int
+LSX_API
+lsx_strcasecmp(
+    LSX_PARAM_IN_Z char const * s1, /**< First string. */
+    LSX_PARAM_IN_Z char const * s2  /**< Second string. */
+    );
+
+
+/**
+Plugins API:
+Like strncmp, except that the characters are compared without regard to case.
+ at returns 0 (s1 == s2), negative (s1 < s2), or positive (s1 > s2).
+*/
+LSX_RETURN_PURE
+int
+LSX_API
+lsx_strncasecmp(
+    LSX_PARAM_IN_Z char const * s1, /**< First string. */
+    LSX_PARAM_IN_Z char const * s2, /**< Second string. */
+    size_t n /**< Maximum number of characters to examine. */
+    );
+
+/**
+Plugins API:
+Is option argument unsupported, required, or optional.
+*/
+typedef enum lsx_option_arg_t {
+    lsx_option_arg_none, /**< Option does not have an argument. */
+    lsx_option_arg_required, /**< Option requires an argument. */
+    lsx_option_arg_optional /**< Option can optionally be followed by an argument. */
+} lsx_option_arg_t;
+
+/**
+Plugins API:
+lsx_getopt_init options.
+*/
+typedef enum lsx_getopt_flags_t {
+    lsx_getopt_flag_none = 0,      /**< no flags (no output, not long-only) */
+    lsx_getopt_flag_opterr = 1,    /**< if set, invalid options trigger lsx_warn output */
+    lsx_getopt_flag_longonly = 2   /**< if set, recognize -option as a long option */
+} lsx_getopt_flags_t;
+
+/**
+Plugins API:
+lsx_getopt long option descriptor.
+*/
+typedef struct lsx_option_t {
+    char const *     name;    /**< Name of the long option. */
+    lsx_option_arg_t has_arg; /**< Whether the long option supports an argument and, if so, whether the argument is required or optional. */
+    int *            flag;    /**< Flag to set if argument is present. */
+    int              val;     /**< Value to put in flag if argument is present. */
+} lsx_option_t;
+
+/**
+Plugins API:
+lsx_getopt session information (initialization data and state).
+*/
+typedef struct lsx_getopt_t {
+    int                  argc;     /**< IN    argc:      Number of arguments in argv */
+    char * const *       argv;     /**< IN    argv:      Array of arguments */
+    char const *         shortopts;/**< IN    shortopts: Short option characters */
+    lsx_option_t const * longopts; /**< IN    longopts:  Array of long option descriptors */
+    lsx_getopt_flags_t   flags;    /**< IN    flags:     Flags for longonly and opterr */
+    char const *         curpos;   /**< INOUT curpos:    Maintains state between calls to lsx_getopt */
+    int                  ind;      /**< INOUT optind:    Maintains the index of next element to be processed */
+    int                  opt;      /**< OUT   optopt:    Receives the option character that caused error */
+    char const *         arg;      /**< OUT   optarg:    Receives the value of the option's argument */
+    int                  lngind;   /**< OUT   lngind:    Receives the index of the matched long option or -1 if not a long option */
+} lsx_getopt_t;
+
+/**
+Plugins API:
+Initializes an lsx_getopt_t structure for use with lsx_getopt.
+*/
+void
+LSX_API
+lsx_getopt_init(
+    LSX_PARAM_IN             int argc,                      /**< Number of arguments in argv */
+    LSX_PARAM_IN_COUNT(argc) char * const * argv,           /**< Array of arguments */
+    LSX_PARAM_IN_Z           char const * shortopts,        /**< Short options, for example ":abc:def::ghi" (+/- not supported) */
+    LSX_PARAM_IN_OPT         lsx_option_t const * longopts, /**< Array of long option descriptors */
+    LSX_PARAM_IN             lsx_getopt_flags_t flags,      /**< Flags for longonly and opterr */
+    LSX_PARAM_IN             int first,                     /**< First argv to check (usually 1) */
+    LSX_PARAM_OUT            lsx_getopt_t * state           /**< State object to be initialized */
+    );
+
+/**
+Plugins API:
+Gets the next option. Options are parameters that start with "-" or "--".
+If no more options, returns -1. If unrecognized short option, returns '?'.
+If a recognized short option is missing a required argument,
+return (shortopts[0]==':' ? ':' : '?'). If successfully recognized short
+option, return the recognized character. If successfully recognized long
+option, returns (option.flag ? 0 : option.val).
+Note: lsx_getopt does not permute the non-option arguments.
+ at returns option character (short), val or 0 (long), or -1 (no more).
+*/
+int
+LSX_API
+lsx_getopt(
+    LSX_PARAM_INOUT lsx_getopt_t * state /**< The getopt state pointer. */
+    );
+
+/* WARNING END */
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* SOX_H */
diff --git a/src/sox/sox_i.h b/src/sox/sox_i.h
new file mode 100644
index 0000000..9d53326
--- /dev/null
+++ b/src/sox/sox_i.h
@@ -0,0 +1,417 @@
+/* libSoX Internal header
+ *
+ *   This file is meant for libSoX internal use only
+ *
+ * Copyright 2001-2008 Chris Bagwell and SoX Contributors
+ *
+ * This source code is freely redistributable and may be used for
+ * any purpose.  This copyright notice must be maintained.
+ * Chris Bagwell And SoX Contributors are not responsible for
+ * the consequences of using this software.
+ */
+
+#ifndef SOX_I_H
+#define SOX_I_H
+
+#include "soxomp.h"  /* Note: soxomp.h includes soxconfig.h */
+#include "sox.h"
+
+#define __FREEDV__
+
+#if defined HAVE_FMEMOPEN
+#define _GNU_SOURCE
+#endif
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "util.h"
+
+#if defined(LSX_EFF_ALIAS)
+#undef lsx_debug
+#undef lsx_fail
+#undef lsx_report
+#undef lsx_warn
+#define lsx_debug sox_globals.subsystem=effp->handler.name,lsx_debug_impl
+#define lsx_fail sox_globals.subsystem=effp->handler.name,lsx_fail_impl
+#define lsx_report sox_globals.subsystem=effp->handler.name,lsx_report_impl
+#define lsx_warn sox_globals.subsystem=effp->handler.name,lsx_warn_impl
+#endif
+
+#define RANQD1 ranqd1(sox_globals.ranqd1)
+#define DRANQD1 dranqd1(sox_globals.ranqd1)
+
+typedef enum {SOX_SHORT, SOX_INT, SOX_FLOAT, SOX_DOUBLE} sox_data_t;
+typedef enum {SOX_WAVE_SINE, SOX_WAVE_TRIANGLE} lsx_wave_t;
+lsx_enum_item const * lsx_get_wave_enum(void);
+
+/* Define fseeko and ftello for platforms lacking them */
+#ifndef HAVE_FSEEKO
+#define fseeko fseek
+#define ftello ftell
+#endif
+
+#ifdef _FILE_OFFSET_BITS
+assert_static(sizeof(off_t) == _FILE_OFFSET_BITS >> 3, OFF_T_BUILD_PROBLEM);
+#endif
+
+FILE * lsx_tmpfile(void);
+
+void lsx_debug_more_impl(char const * fmt, ...) LSX_PRINTF12;
+void lsx_debug_most_impl(char const * fmt, ...) LSX_PRINTF12;
+
+#define lsx_debug_more sox_get_globals()->subsystem=__FILE__,lsx_debug_more_impl
+#define lsx_debug_most sox_get_globals()->subsystem=__FILE__,lsx_debug_most_impl
+
+/* Digitise one cycle of a wave and store it as
+ * a table of samples of a specified data-type.
+ */
+void lsx_generate_wave_table(
+    lsx_wave_t wave_type,
+    sox_data_t data_type,
+    void * table,       /* Really of type indicated by data_type. */
+    size_t table_size,  /* Number of points on the x-axis. */
+    double min,         /* Minimum value on the y-axis. (e.g. -1) */
+    double max,         /* Maximum value on the y-axis. (e.g. +1) */
+    double phase);      /* Phase at 1st point; 0..2pi. (e.g. pi/2 for cosine) */
+char const * lsx_parsesamples(sox_rate_t rate, const char *str, uint64_t *samples, int def);
+int lsx_parse_note(char const * text, char * * end_ptr);
+double lsx_parse_frequency_k(char const * text, char * * end_ptr, int key);
+#define lsx_parse_frequency(a, b) lsx_parse_frequency_k(a, b, INT_MAX)
+FILE * lsx_open_input_file(sox_effect_t * effp, char const * filename);
+
+void lsx_prepare_spline3(double const * x, double const * y, int n,
+    double start_1d, double end_1d, double * y_2d);
+double lsx_spline3(double const * x, double const * y, double const * y_2d,
+    int n, double x1);
+
+double lsx_bessel_I_0(double x);
+int lsx_set_dft_length(int num_taps);
+void init_fft_cache(void);
+void clear_fft_cache(void);
+void lsx_safe_rdft(int len, int type, double * d);
+void lsx_safe_cdft(int len, int type, double * d);
+void lsx_power_spectrum(int n, double const * in, double * out);
+void lsx_power_spectrum_f(int n, float const * in, float * out);
+void lsx_apply_hann_f(float h[], const int num_points);
+void lsx_apply_hann(double h[], const int num_points);
+void lsx_apply_hamming(double h[], const int num_points);
+void lsx_apply_bartlett(double h[], const int num_points);
+void lsx_apply_blackman(double h[], const int num_points, double alpha);
+void lsx_apply_blackman_nutall(double h[], const int num_points);
+double lsx_kaiser_beta(double att);
+void lsx_apply_kaiser(double h[], const int num_points, double beta);
+double * lsx_make_lpf(int num_taps, double Fc, double beta, double scale, sox_bool dc_norm);
+int lsx_lpf_num_taps(double att, double tr_bw, int k);
+double * lsx_design_lpf(
+    double Fp,      /* End of pass-band; ~= 0.01dB point */
+    double Fc,      /* Start of stop-band */
+    double Fn,      /* Nyquist freq; e.g. 0.5, 1, PI */
+    sox_bool allow_aliasing,
+    double att,     /* Stop-band attenuation in dB */
+    int * num_taps, /* (Single phase.)  0: value will be estimated */
+    int k);         /* Number of phases; 0 for single-phase */
+void lsx_fir_to_phase(double * * h, int * len,
+    int * post_len, double phase0);
+#define LSX_TO_6dB .5869
+#define LSX_TO_3dB ((2/3.) * (.5 + LSX_TO_6dB))
+#define LSX_MAX_TBW0 36.
+#define LSX_MAX_TBW0A (LSX_MAX_TBW0 / (1 + LSX_TO_3dB))
+#define LSX_MAX_TBW3 floor(LSX_MAX_TBW0 * LSX_TO_3dB)
+#define LSX_MAX_TBW3A floor(LSX_MAX_TBW0A * LSX_TO_3dB)
+void lsx_plot_fir(double * h, int num_points, sox_rate_t rate, sox_plot_t type, char const * title, double y1, double y2);
+
+#ifdef HAVE_BYTESWAP_H
+#include <byteswap.h>
+#define lsx_swapw(x) bswap_16(x)
+#define lsx_swapdw(x) bswap_32(x)
+#elif defined(_MSC_VER)
+#define lsx_swapw(x) _byteswap_ushort(x)
+#define lsx_swapdw(x) _byteswap_ulong(x)
+#else
+#define lsx_swapw(uw) (((uw >> 8) | (uw << 8)) & 0xffff)
+#define lsx_swapdw(udw) ((udw >> 24) | ((udw >> 8) & 0xff00) | ((udw << 8) & 0xff0000) | (udw << 24))
+#endif
+
+
+
+/*------------------------ Implemented in libsoxio.c -------------------------*/
+
+/* Read and write basic data types from "ft" stream. */
+size_t lsx_readbuf(sox_format_t * ft, void *buf, size_t len);
+int lsx_skipbytes(sox_format_t * ft, size_t n);
+int lsx_padbytes(sox_format_t * ft, size_t n);
+size_t lsx_writebuf(sox_format_t * ft, void const *buf, size_t len);
+int lsx_reads(sox_format_t * ft, char *c, size_t len);
+int lsx_writes(sox_format_t * ft, char const * c);
+void lsx_set_signal_defaults(sox_format_t * ft);
+#define lsx_writechars(ft, chars, len) (lsx_writebuf(ft, chars, len) == len? SOX_SUCCESS : SOX_EOF)
+
+size_t lsx_read_3_buf(sox_format_t * ft, sox_uint24_t *buf, size_t len);
+size_t lsx_read_b_buf(sox_format_t * ft, uint8_t *buf, size_t len);
+size_t lsx_read_df_buf(sox_format_t * ft, double *buf, size_t len);
+size_t lsx_read_dw_buf(sox_format_t * ft, uint32_t *buf, size_t len);
+size_t lsx_read_qw_buf(sox_format_t * ft, uint64_t *buf, size_t len);
+size_t lsx_read_f_buf(sox_format_t * ft, float *buf, size_t len);
+size_t lsx_read_w_buf(sox_format_t * ft, uint16_t *buf, size_t len);
+
+size_t lsx_write_3_buf(sox_format_t * ft, sox_uint24_t *buf, size_t len);
+size_t lsx_write_b_buf(sox_format_t * ft, uint8_t *buf, size_t len);
+size_t lsx_write_df_buf(sox_format_t * ft, double *buf, size_t len);
+size_t lsx_write_dw_buf(sox_format_t * ft, uint32_t *buf, size_t len);
+size_t lsx_write_qw_buf(sox_format_t * ft, uint64_t *buf, size_t len);
+size_t lsx_write_f_buf(sox_format_t * ft, float *buf, size_t len);
+size_t lsx_write_w_buf(sox_format_t * ft, uint16_t *buf, size_t len);
+
+int lsx_read3(sox_format_t * ft, sox_uint24_t * u3);
+int lsx_readb(sox_format_t * ft, uint8_t * ub);
+int lsx_readchars(sox_format_t * ft, char * chars, size_t len);
+int lsx_readdf(sox_format_t * ft, double * d);
+int lsx_readdw(sox_format_t * ft, uint32_t * udw);
+int lsx_readqw(sox_format_t * ft, uint64_t * udw);
+int lsx_readf(sox_format_t * ft, float * f);
+int lsx_readw(sox_format_t * ft, uint16_t * uw);
+
+#if 1 /* FIXME: use defines */
+UNUSED static int lsx_readsb(sox_format_t * ft, int8_t * sb)
+{return lsx_readb(ft, (uint8_t *)sb);}
+UNUSED static int lsx_readsw(sox_format_t * ft, int16_t * sw)
+{return lsx_readw(ft, (uint16_t *)sw);}
+#else
+#define lsx_readsb(ft, sb) lsx_readb(ft, (uint8_t *)sb)
+#define lsx_readsw(ft, sw) lsx_readb(ft, (uint16_t *)sw)
+#endif
+
+int lsx_write3(sox_format_t * ft, unsigned u3);
+int lsx_writeb(sox_format_t * ft, unsigned ub);
+int lsx_writedf(sox_format_t * ft, double d);
+int lsx_writedw(sox_format_t * ft, unsigned udw);
+int lsx_writeqw(sox_format_t * ft, uint64_t uqw);
+int lsx_writef(sox_format_t * ft, double f);
+int lsx_writew(sox_format_t * ft, unsigned uw);
+
+int lsx_writesb(sox_format_t * ft, signed);
+int lsx_writesw(sox_format_t * ft, signed);
+
+int lsx_eof(sox_format_t * ft);
+int lsx_error(sox_format_t * ft);
+int lsx_flush(sox_format_t * ft);
+int lsx_seeki(sox_format_t * ft, off_t offset, int whence);
+int lsx_unreadb(sox_format_t * ft, unsigned ub);
+uint64_t lsx_filelength(sox_format_t * ft);
+off_t lsx_tell(sox_format_t * ft);
+void lsx_clearerr(sox_format_t * ft);
+void lsx_rewind(sox_format_t * ft);
+
+int lsx_offset_seek(sox_format_t * ft, off_t byte_offset, off_t to_sample);
+
+void lsx_fail_errno(sox_format_t *, int, const char *, ...)
+#ifdef __GNUC__
+__attribute__ ((format (printf, 3, 4)));
+#else
+;
+#endif
+
+typedef struct sox_formats_globals { /* Global parameters (for formats) */
+  sox_globals_t * global_info;
+} sox_formats_globals;
+
+
+
+/*------------------------------ File Handlers -------------------------------*/
+
+int lsx_check_read_params(sox_format_t * ft, unsigned channels,
+    sox_rate_t rate, sox_encoding_t encoding, unsigned bits_per_sample,
+    uint64_t num_samples, sox_bool check_length);
+#define LSX_FORMAT_HANDLER(name) \
+sox_format_handler_t const * lsx_##name##_format_fn(void); \
+sox_format_handler_t const * lsx_##name##_format_fn(void)
+#define div_bits(size, bits) ((uint64_t)(size) * 8 / bits)
+
+/* Raw I/O */
+int lsx_rawstartread(sox_format_t * ft);
+size_t lsx_rawread(sox_format_t * ft, sox_sample_t *buf, size_t nsamp);
+int lsx_rawstopread(sox_format_t * ft);
+int lsx_rawstartwrite(sox_format_t * ft);
+size_t lsx_rawwrite(sox_format_t * ft, const sox_sample_t *buf, size_t nsamp);
+int lsx_rawseek(sox_format_t * ft, uint64_t offset);
+int lsx_rawstart(sox_format_t * ft, sox_bool default_rate, sox_bool default_channels, sox_bool default_length, sox_encoding_t encoding, unsigned bits_per_sample);
+#define lsx_rawstartread(ft) lsx_rawstart(ft, sox_false, sox_false, sox_false, SOX_ENCODING_UNKNOWN, 0)
+#define lsx_rawstartwrite lsx_rawstartread
+#define lsx_rawstopread NULL
+#define lsx_rawstopwrite NULL
+
+extern sox_format_handler_t const * lsx_sndfile_format_fn(void);
+
+char * lsx_cat_comments(sox_comments_t comments);
+
+/*--------------------------------- Effects ----------------------------------*/
+
+int lsx_flow_copy(sox_effect_t * effp, const sox_sample_t * ibuf,
+    sox_sample_t * obuf, size_t * isamp, size_t * osamp);
+int lsx_usage(sox_effect_t * effp);
+char * lsx_usage_lines(char * * usage, char const * const * lines, size_t n);
+#define EFFECT(f) extern sox_effect_handler_t const * lsx_##f##_effect_fn(void);
+#include "effects.h"
+#undef EFFECT
+
+#define NUMERIC_PARAMETER(name, min, max) { \
+  char * end_ptr; \
+  double d; \
+  if (argc == 0) break; \
+  d = strtod(*argv, &end_ptr); \
+  if (end_ptr != *argv) { \
+    if (d < min || d > max || *end_ptr != '\0') {\
+      lsx_fail("parameter `%s' must be between %g and %g", #name, (double)min, (double)max); \
+      return lsx_usage(effp); \
+    } \
+    p->name = d; \
+    --argc, ++argv; \
+  } \
+}
+
+#define TEXTUAL_PARAMETER(name, enum_table) { \
+  lsx_enum_item const * e; \
+  if (argc == 0) break; \
+  e = lsx_find_enum_text(*argv, enum_table, 0); \
+  if (e != NULL) { \
+    p->name = e->value; \
+    --argc, ++argv; \
+  } \
+}
+
+#define GETOPT_NUMERIC(state, ch, name, min, max) case ch:{ \
+  char * end_ptr; \
+  double d = strtod(state.arg, &end_ptr); \
+  if (end_ptr == state.arg || d < min || d > max || *end_ptr != '\0') {\
+    lsx_fail("parameter `%s' must be between %g and %g", #name, (double)min, (double)max); \
+    return lsx_usage(effp); \
+  } \
+  p->name = d; \
+  break; \
+}
+
+int lsx_effect_set_imin(sox_effect_t * effp, size_t imin);
+
+int lsx_effects_init(void);
+int lsx_effects_quit(void);
+
+/*--------------------------------- Dynamic Library ----------------------------------*/
+
+#if defined(HAVE_WIN32_LTDL_H)
+    #include "win32-ltdl.h"
+    #define HAVE_LIBLTDL 1
+    typedef lt_dlhandle lsx_dlhandle;
+#elif defined(HAVE_LIBLTDL)
+    #include <ltdl.h>
+    typedef lt_dlhandle lsx_dlhandle;
+#else
+    struct lsx_dlhandle_tag;
+    typedef struct lsx_dlhandle_tag *lsx_dlhandle;
+#endif
+
+typedef void (*lsx_dlptr)(void);
+
+typedef struct lsx_dlfunction_info
+{
+    const char* name;
+    lsx_dlptr static_func;
+    lsx_dlptr stub_func;
+} lsx_dlfunction_info;
+
+int lsx_open_dllibrary(
+    int show_error_on_failure,
+    const char* library_description,
+    const char * const library_names[],
+    const lsx_dlfunction_info func_infos[],
+    lsx_dlptr selected_funcs[],
+    lsx_dlhandle* pdl);
+
+void lsx_close_dllibrary(
+    lsx_dlhandle dl);
+
+#define LSX_DLENTRIES_APPLY__(entries, f, x) entries(f, x)
+
+#define LSX_DLENTRY_TO_PTR__(unused, func_return, func_name, func_args, static_func, stub_func, func_ptr) \
+    func_return (*func_ptr) func_args;
+
+#define LSX_DLENTRIES_TO_FUNCTIONS__(unused, func_return, func_name, func_args, static_func, stub_func, func_ptr) \
+    func_return func_name func_args;
+
+/* LSX_DLENTRIES_TO_PTRS: Given an ENTRIES macro and the name of the dlhandle
+   variable, declares the corresponding function pointer variables and the
+   dlhandle variable. */
+#define LSX_DLENTRIES_TO_PTRS(entries, dlhandle) \
+    LSX_DLENTRIES_APPLY__(entries, LSX_DLENTRY_TO_PTR__, 0) \
+    lsx_dlhandle dlhandle
+
+/* LSX_DLENTRIES_TO_FUNCTIONS: Given an ENTRIES macro, declares the corresponding
+   functions. */
+#define LSX_DLENTRIES_TO_FUNCTIONS(entries) \
+    LSX_DLENTRIES_APPLY__(entries, LSX_DLENTRIES_TO_FUNCTIONS__, 0)
+
+#define LSX_DLLIBRARY_OPEN1__(unused, func_return, func_name, func_args, static_func, stub_func, func_ptr) \
+    { #func_name, (lsx_dlptr)(static_func), (lsx_dlptr)(stub_func) },
+
+#define LSX_DLLIBRARY_OPEN2__(ptr_container, func_return, func_name, func_args, static_func, stub_func, func_ptr) \
+    (ptr_container)->func_ptr = (func_return (*)func_args)lsx_dlfunction_open_library_funcs[lsx_dlfunction_open_library_index++];
+
+/* LSX_DLLIBRARY_OPEN: Input an ENTRIES macro, the library's description,
+   a null-terminated list of library names (i.e. { "libmp3-0", "libmp3", NULL }),
+   the name of the dlhandle variable, the name of the structure that contains
+   the function pointer and dlhandle variables, and the name of the variable in
+   which the result of the lsx_open_dllibrary call should be stored. This will
+   call lsx_open_dllibrary and copy the resulting function pointers into the
+   structure members. If the library cannot be opened, show a failure message. */
+#define LSX_DLLIBRARY_OPEN(ptr_container, dlhandle, entries, library_description, library_names, return_var) \
+    LSX_DLLIBRARY_TRYOPEN(1, ptr_container, dlhandle, entries, library_description, library_names, return_var)
+
+/* LSX_DLLIBRARY_TRYOPEN: Input an ENTRIES macro, the library's description,
+   a null-terminated list of library names (i.e. { "libmp3-0", "libmp3", NULL }),
+   the name of the dlhandle variable, the name of the structure that contains
+   the function pointer and dlhandle variables, and the name of the variable in
+   which the result of the lsx_open_dllibrary call should be stored. This will
+   call lsx_open_dllibrary and copy the resulting function pointers into the
+   structure members. If the library cannot be opened, show a report or a failure
+   message, depending on whether error_on_failure is non-zero. */
+#define LSX_DLLIBRARY_TRYOPEN(error_on_failure, ptr_container, dlhandle, entries, library_description, library_names, return_var) \
+    do { \
+      lsx_dlfunction_info lsx_dlfunction_open_library_infos[] = { \
+        LSX_DLENTRIES_APPLY__(entries, LSX_DLLIBRARY_OPEN1__, 0) \
+        {NULL,NULL,NULL} }; \
+      int lsx_dlfunction_open_library_index = 0; \
+      lsx_dlptr lsx_dlfunction_open_library_funcs[sizeof(lsx_dlfunction_open_library_infos)/sizeof(lsx_dlfunction_open_library_infos[0])]; \
+      (return_var) = lsx_open_dllibrary((error_on_failure), (library_description), (library_names), lsx_dlfunction_open_library_infos, lsx_dlfunction_open_library_funcs, &(ptr_container)->dlhandle); \
+      LSX_DLENTRIES_APPLY__(entries, LSX_DLLIBRARY_OPEN2__, ptr_container) \
+    } while(0)
+
+#define LSX_DLLIBRARY_CLOSE(ptr_container, dlhandle) \
+    lsx_close_dllibrary((ptr_container)->dlhandle)
+
+  /* LSX_DLENTRY_STATIC: For use in creating an ENTRIES macro. func is
+     expected to be available at link time. If not present, link will fail. */
+#define LSX_DLENTRY_STATIC(f,x, ret, func, args)  f(x, ret, func, args, func, NULL, func)
+
+  /* LSX_DLENTRY_DYNAMIC: For use in creating an ENTRIES macro. func need
+     not be available at link time (and if present, the link time version will
+     not be used). func will be loaded via dlsym. If this function is not
+     found in the shared library, the shared library will not be used. */
+#define LSX_DLENTRY_DYNAMIC(f,x, ret, func, args) f(x, ret, func, args, NULL, NULL, func)
+
+  /* LSX_DLENTRY_STUB: For use in creating an ENTRIES macro. func need not
+     be available at link time (and if present, the link time version will not
+     be used). If using DL_LAME, the func may be loaded via dlopen/dlsym, but
+     if not found, the shared library will still be used if all of the
+     non-stub functions are found. If the function is not found via dlsym (or
+     if we are not loading any shared libraries), the stub will be used. This
+     assumes that the name of the stub function is the name of the function +
+     "_stub". */
+#define LSX_DLENTRY_STUB(f,x, ret, func, args)    f(x, ret, func, args, NULL, func##_stub, func)
+
+  /* LSX_DLFUNC_IS_STUB: returns true if the named function is a do-nothing
+     stub. Assumes that the name of the stub function is the name of the
+     function + "_stub". */
+#define LSX_DLFUNC_IS_STUB(ptr_container, func) ((ptr_container)->func == func##_stub)
+
+#endif
diff --git a/src/sox/soxomp.h b/src/sox/soxomp.h
new file mode 100644
index 0000000..6fce07d
--- /dev/null
+++ b/src/sox/soxomp.h
@@ -0,0 +1,38 @@
+#include "soxconfig.h"
+
+#ifdef HAVE_OPENMP
+  #include <omp.h>
+#else
+
+typedef int omp_lock_t;
+typedef int omp_nest_lock_t;
+
+#define omp_set_num_threads(int) (void)0
+#define omp_get_num_threads() 1
+#define omp_get_max_threads() 1
+#define omp_get_thread_num() 0
+#define omp_get_num_procs() 1
+#define omp_in_parallel() 1
+
+#define omp_set_dynamic(int) (void)0
+#define omp_get_dynamic() 0
+
+#define omp_set_nested(int) (void)0
+#define omp_get_nested() 0
+
+#define omp_init_lock(omp_lock_t) (void)0
+#define omp_destroy_lock(omp_lock_t) (void)0
+#define omp_set_lock(omp_lock_t) (void)0
+#define omp_unset_lock(omp_lock_t) (void)0
+#define omp_test_lock(omp_lock_t) 0
+
+#define omp_init_nest_lock(omp_nest_lock_t) (void)0
+#define omp_destroy_nest_lock(omp_nest_lock_t) (void)0
+#define omp_set_nest_lock(omp_nest_lock_t) (void)0
+#define omp_unset_nest_lock(omp_nest_lock_t) (void)0
+#define omp_test_nest_lock(omp_nest_lock_t) 0
+
+#define omp_get_wtime() 0
+#define omp_get_wtick() 0
+
+#endif
diff --git a/src/sox/util.h b/src/sox/util.h
new file mode 100644
index 0000000..89bbe75
--- /dev/null
+++ b/src/sox/util.h
@@ -0,0 +1,231 @@
+/* General purpose, i.e. non SoX specific, utility functions and macros.
+ *
+ * (c) 2006-8 Chris Bagwell and SoX contributors
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "soxconfig.h"
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h> /* For off_t not found in stdio.h */
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h> /* Needs to be included before we redefine off_t. */
+#endif
+
+#include "xmalloc.h"
+
+/*---------------------------- Portability stuff -----------------------------*/
+
+#if defined(HAVE_INTTYPES_H)
+  #include <inttypes.h>
+#elif defined(HAVE_STDINT_H)
+  #include <stdint.h>
+#else
+  typedef sox_int8_t   int8_t;
+  typedef sox_uint8_t  uint8_t;
+  typedef sox_int16_t  int16_t;
+  typedef sox_uint16_t uint16_t;
+  typedef sox_int32_t  int32_t;
+  typedef sox_uint32_t uint32_t;
+  typedef sox_int64_t  int64_t;
+  typedef sox_uint64_t uint64_t;
+#endif
+
+/* Define the format specifier to use for int64_t values.
+ * Example: printf("You may have already won $ %" PRId64 " !!!", n64); */
+#ifndef PRId64 /* Maybe <inttypes.h> already defined this. */
+#if defined(_MSC_VER) || defined(__MINGW32__) /* Older versions of msvcrt.dll don't recognize %lld. */
+#define PRId64 "I64d"
+#elif LONG_MAX==9223372036854775807
+#define PRId64 "ld"
+#else
+#define PRId64 "lld"
+#endif
+#endif /* PRId64 */
+
+/* Define the format specifier to use for uint64_t values. */
+#ifndef PRIu64 /* Maybe <inttypes.h> already defined this. */
+#if defined(_MSC_VER) || defined(__MINGW32__) /* Older versions of msvcrt.dll don't recognize %llu. */
+#define PRIu64 "I64u"
+#elif ULONG_MAX==0xffffffffffffffff
+#define PRIu64 "lu"
+#else
+#define PRIu64 "llu"
+#endif
+#endif /* PRIu64 */
+
+/* Define the format specifier to use for size_t values.
+ * Example: printf("Sizeof(x) = %" PRIuPTR " bytes", sizeof(x)); */
+#ifndef PRIuPTR /* Maybe <inttypes.h> already defined this. */
+#if defined(_MSC_VER) || defined(__MINGW32__) /* Older versions of msvcrt.dll don't recognize %zu. */
+#define PRIuPTR "Iu"
+#else
+#define PRIuPTR "zu"
+#endif
+#endif /* PRIuPTR */
+
+#ifdef __GNUC__
+#define NORET __attribute__((noreturn))
+#define UNUSED __attribute__ ((unused))
+#else
+#define NORET
+#define UNUSED
+#endif
+
+#ifdef _MSC_VER
+
+#define __STDC__ 1
+#define O_BINARY _O_BINARY
+#define O_CREAT _O_CREAT
+#define O_RDWR _O_RDWR
+#define O_TRUNC _O_TRUNC
+#define S_IFMT _S_IFMT
+#define S_IFREG _S_IFREG
+#define S_IREAD _S_IREAD
+#define S_IWRITE _S_IWRITE
+#define close _close
+#define dup _dup
+#define fdopen _fdopen
+#define fileno _fileno
+
+#ifdef _fstati64
+#define fstat _fstati64
+#else
+#define fstat _fstat
+#endif
+
+#define ftime _ftime
+#define inline __inline
+#define isatty _isatty
+#define kbhit _kbhit
+#define mktemp _mktemp
+#define off_t _off_t
+#define open _open
+#define pclose _pclose
+#define popen _popen
+#define setmode _setmode
+#define snprintf _snprintf
+
+#ifdef _stati64
+#define stat _stati64
+#else
+#define stat _stat
+#endif
+
+#define strdup _strdup
+#define timeb _timeb
+#define unlink _unlink
+
+#if defined(HAVE__FSEEKI64) && !defined(HAVE_FSEEKO)
+#undef off_t
+#define fseeko _fseeki64
+#define ftello _ftelli64
+#define off_t __int64
+#define HAVE_FSEEKO 1
+#endif
+
+#elif defined(__MINGW32__)
+
+#if !defined(HAVE_FSEEKO)
+#undef off_t
+#define fseeko fseeko64
+#define fstat _fstati64
+#define ftello ftello64
+#define off_t off64_t
+#define stat _stati64
+#define HAVE_FSEEKO 1
+#endif
+
+#endif
+
+#if defined(DOS) || defined(WIN32) || defined(__NT__) || defined(__DJGPP__) || defined(__OS2__)
+  #define LAST_SLASH(path) max(strrchr(path, '/'), strrchr(path, '\\'))
+  #define IS_ABSOLUTE(path) ((path)[0] == '/' || (path)[0] == '\\' || (path)[1] == ':')
+  #define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
+  #define POPEN_MODE "rb"
+#else
+  #define LAST_SLASH(path) strrchr(path, '/')
+  #define IS_ABSOLUTE(path) ((path)[0] == '/')
+  #define SET_BINARY_MODE(file)
+#endif
+
+#ifdef WORDS_BIGENDIAN
+  #define MACHINE_IS_BIGENDIAN 1
+  #define MACHINE_IS_LITTLEENDIAN 0
+#else
+  #define MACHINE_IS_BIGENDIAN 0
+  #define MACHINE_IS_LITTLEENDIAN 1
+#endif
+
+/*--------------------------- Language extensions ----------------------------*/
+
+/* Compile-time ("static") assertion */
+/*   e.g. assert_static(sizeof(int) >= 4, int_type_too_small)    */
+#define assert_static(e,f) enum {assert_static__##f = 1/(e)}
+#define array_length(a) (sizeof(a)/sizeof(a[0]))
+#define field_offset(type, field) ((size_t)&(((type *)0)->field))
+#define unless(x) if (!(x))
+
+/*------------------------------- Maths stuff --------------------------------*/
+
+#include <math.h>
+
+#ifdef min
+#undef min
+#endif
+#define min(a, b) ((a) <= (b) ? (a) : (b))
+
+#ifdef max
+#undef max
+#endif
+#define max(a, b) ((a) >= (b) ? (a) : (b))
+
+#define range_limit(x, lower, upper) (min(max(x, lower), upper))
+
+#ifndef M_PI
+#define M_PI    3.14159265358979323846
+#endif
+#ifndef M_PI_2
+#define M_PI_2  1.57079632679489661923  /* pi/2 */
+#endif
+#ifndef M_LN10
+#define M_LN10  2.30258509299404568402  /* natural log of 10 */
+#endif
+#ifndef M_SQRT2
+#define M_SQRT2  sqrt(2.)
+#endif
+
+#define sqr(a) ((a) * (a))
+#define sign(x) ((x) < 0? -1 : 1)
+
+/* Numerical Recipes in C, p. 284 */
+#define ranqd1(x) ((x) = 1664525L * (x) + 1013904223L) /* int32_t x */
+#define dranqd1(x) (ranqd1(x) * (1. / (65536. * 32768.))) /* [-1,1) */
+
+#define dB_to_linear(x) exp((x) * M_LN10 * 0.05)
+#define linear_to_dB(x) (log10(x) * 20)
+
+extern int lsx_strcasecmp(const char *s1, const char *st);
+extern int lsx_strncasecmp(char const *s1, char const *s2, size_t n);
+
+#ifndef HAVE_STRCASECMP
+#define strcasecmp(s1, s2) lsx_strcasecmp((s1), (s2))
+#define strncasecmp(s1, s2, n) lsx_strncasecmp((s1), (s2), (n))
+#endif
diff --git a/src/sox/xmalloc.c b/src/sox/xmalloc.c
new file mode 100644
index 0000000..9bf1596
--- /dev/null
+++ b/src/sox/xmalloc.c
@@ -0,0 +1,43 @@
+/* SoX Memory allocation functions
+ *
+ * Copyright (c) 2005-2006 Reuben Thomas.  All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "sox_i.h"
+#include <stdlib.h>
+
+/* Resize an allocated memory area; abort if not possible.
+ *
+ * For malloc, `If the size of the space requested is zero, the behavior is
+ * implementation defined: either a null pointer is returned, or the
+ * behavior is as if the size were some nonzero value, except that the
+ * returned pointer shall not be used to access an object'
+ */
+void *lsx_realloc(void *ptr, size_t newsize)
+{
+  if (ptr && newsize == 0) {
+    free(ptr);
+    return NULL;
+  }
+
+  if ((ptr = realloc(ptr, newsize)) == NULL) {
+    lsx_fail("out of memory");
+    exit(2);
+  }
+
+  return ptr;
+}
diff --git a/src/sox/xmalloc.h b/src/sox/xmalloc.h
new file mode 100644
index 0000000..9ee77f6
--- /dev/null
+++ b/src/sox/xmalloc.h
@@ -0,0 +1,34 @@
+/* libSoX Memory allocation functions
+ *
+ * Copyright (c) 2005-2006 Reuben Thomas.  All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef LSX_MALLOC_H
+#define LSX_MALLOC_H
+
+#include <stddef.h>
+#include <string.h>
+
+#define lsx_malloc(size) lsx_realloc(NULL, (size))
+#define lsx_calloc(n,s) (((n)*(s))? memset(lsx_malloc((n)*(s)),0,(n)*(s)) : NULL)
+#define lsx_Calloc(v,n)  v = lsx_calloc(n,sizeof(*(v)))
+#define lsx_strdup(p) ((p)? strcpy((char *)lsx_malloc(strlen(p) + 1), p) : NULL)
+#define lsx_memdup(p,s) ((p)? memcpy(lsx_malloc(s), p, s) : NULL)
+#define lsx_valloc(v,n)  v = lsx_malloc((n)*sizeof(*(v)))
+#define lsx_revalloc(v,n)  v = lsx_realloc(v, (n)*sizeof(*(v)))
+
+#endif
diff --git a/src/sox_biquad.c b/src/sox_biquad.c
new file mode 100644
index 0000000..548f424
--- /dev/null
+++ b/src/sox_biquad.c
@@ -0,0 +1,134 @@
+//==========================================================================
+// Name:            sox_biquad.h
+// Purpose:         Interface into Sox Biquad filters 
+// Created:         Dec 1, 2012
+// Authors:         David Rowe
+// 
+// To test:
+/*
+          $ gcc sox_biquad.c sox/effects_i.c sox/effects.c sox/formats_i.c \
+            sox/biquad.c sox/biquads.c sox/xmalloc.c sox/libsox.c \
+            -o sox_biquad -DSOX_BIQUAD_UNITTEST -D__FREEDV__ \
+            -Wall -lm -lsndfile -g
+          $ ./sox_biquad
+*/
+//
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include "sox/sox.h"
+
+#include "sox_biquad.h"
+
+
+#define N_MAX 1024
+
+int lsx_biquad_flow(sox_effect_t * effp, const sox_sample_t *ibuf,
+                    sox_sample_t *obuf, size_t *isamp, size_t *osamp);
+
+void sox_biquad_start(void)
+{
+    int r = sox_init();
+    assert(r == SOX_SUCCESS);
+}
+
+void sox_biquad_finish(void)
+{
+    sox_quit();
+}
+
+/*
+  Effect must be implemented by biquads.c in sox, arguments are just
+  like sox command line, for example:
+
+  char *argv[10];
+  argv[0] = "highpass"; argv[1]="1000"; argc=1;
+*/
+
+void *sox_biquad_create(int argc, const char *argv[])
+{
+    int ret;
+    sox_effect_t *e;
+    int (*start)(sox_effect_t *); /* function pointer to effect start func */
+    
+    e = sox_create_effect(sox_find_effect(argv[0])); assert(e != NULL);
+    ret = sox_effect_options(e, argc, (char * const*)&argv[1]);
+    assert(ret == SOX_SUCCESS);
+
+    start = e->handler.start;
+    e->in_signal.rate = 8000;     /* locked at FS=8000 Hz */
+    ret = start(e); assert(ret == SOX_SUCCESS);
+    
+    return (void *)e;
+}
+
+void sox_biquad_destroy(void *sbq) {
+    sox_effect_t *e = (sox_effect_t *)sbq;
+    free(e);
+}
+
+void sox_biquad_filter(void *sbq, short out[], short in[], int n)
+{
+    sox_effect_t *e = (sox_effect_t *)sbq;
+    sox_sample_t ibuf[N_MAX];
+    sox_sample_t obuf[N_MAX];
+    size_t isamp, osamp;
+    unsigned int clips;
+    SOX_SAMPLE_LOCALS; 
+    int i;
+
+    assert(n <= N_MAX);
+
+    clips = 0;
+    for(i=0; i<n; i++)
+        ibuf[i] = SOX_SIGNED_16BIT_TO_SAMPLE(in[i], clips);
+    isamp = osamp = (unsigned int)n;
+    lsx_biquad_flow(e, ibuf, obuf, &isamp, &osamp);
+    for(i=0; i<n; i++)
+        out[i] = SOX_SAMPLE_TO_SIGNED_16BIT(obuf[i], clips); 
+}
+
+
+#ifdef SOX_BIQUAD_UNITTEST
+#define N 20
+int main(void) {
+    void *sbq;
+    const char *argv[] = {"highpass", "1000"};
+    short in[N];
+    short out[N];
+    int   i, argc;;
+
+    for(i=0; i<N; i++)
+        in[i] = 0;
+    in[0] = 8000;
+
+    sox_biquad_start();
+    //argv[0] = "highpass"; argv[1]="1000"; 
+    argc=1;
+    sbq = sox_biquad_create(argc, argv);
+
+    sox_biquad_filter(sbq, out, in, N);
+    for(i=0; i<N; i++)
+        printf("%d\n", out[i]);
+   
+    sox_biquad_destroy(sbq);
+    sox_biquad_finish();
+
+    return 0;
+}
+#endif
diff --git a/src/sox_biquad.h b/src/sox_biquad.h
new file mode 100644
index 0000000..f38de64
--- /dev/null
+++ b/src/sox_biquad.h
@@ -0,0 +1,40 @@
+//==========================================================================
+// Name:            sox_biquad.h
+// Purpose:         Interface into Sox Biquad filters 
+// Created:         Dec 1, 2012
+// Authors:         David Rowe
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+
+#ifndef __SOX_BIQUAD__
+#define __SOX_BIQUAD__
+
+#ifdef __cplusplus
+extern "C" {
+
+#endif
+
+void sox_biquad_start(void);
+void sox_biquad_finish(void);
+void *sox_biquad_create(int argc, const char *argv[]);
+void sox_biquad_destroy(void *sbq);
+void sox_biquad_filter(void *sbq, short out[], short in[], int n);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/topFrame.cpp b/src/topFrame.cpp
new file mode 100644
index 0000000..a5b574a
--- /dev/null
+++ b/src/topFrame.cpp
@@ -0,0 +1,595 @@
+//==========================================================================
+// Name:            topFrame.cpp
+//
+// Purpose:         Implements simple wxWidgets application with GUI.
+// Created:         Apr. 9, 2012
+// Authors:         David Rowe, David Witten
+// 
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#include "topFrame.h"
+
+extern int g_playFileToMicInEventId;
+extern int g_recFileFromRadioEventId;
+extern int g_playFileFromRadioEventId;
+
+//=========================================================================
+// Code that lays out the main application window
+//=========================================================================
+TopFrame::TopFrame(wxString plugInName, wxWindow* parent, wxWindowID id, const wxString& title, const wxPoint& pos, const wxSize& size, long style) : wxFrame(parent, id, title, pos, size, style)
+{
+    this->SetSizeHints(wxDefaultSize, wxDefaultSize);
+    this->SetForegroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
+    this->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT));
+    this->SetSizeHints(wxDefaultSize, wxDefaultSize);
+    this->SetForegroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
+    this->SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT));
+    //=====================================================
+    // Menubar Setup
+    m_menubarMain = new wxMenuBar(wxMB_DOCKABLE);
+    file = new wxMenu();
+
+    wxMenuItem* m_menuItemOnTop;
+    m_menuItemOnTop = new wxMenuItem(file, wxID_ANY, wxString(_("On Top")) , _("Always Top Window"), wxITEM_NORMAL);
+    file->Append(m_menuItemOnTop);
+
+    wxMenuItem* m_menuItemExit;
+    m_menuItemExit = new wxMenuItem(file, ID_EXIT, wxString(_("E&xit")) , _("Exit Program"), wxITEM_NORMAL);
+    file->Append(m_menuItemExit);
+
+    m_menubarMain->Append(file, _("&File"));
+
+    tools = new wxMenu();
+    wxMenuItem* m_menuItemAudio;
+    m_menuItemAudio = new wxMenuItem(tools, wxID_ANY, wxString(_("&Audio Config")) , wxEmptyString, wxITEM_NORMAL);
+    tools->Append(m_menuItemAudio);
+
+    wxMenuItem* m_menuItemRigCtrlCfg;
+    m_menuItemRigCtrlCfg = new wxMenuItem(tools, wxID_ANY, wxString(_("&PTT Config")) , wxEmptyString, wxITEM_NORMAL);
+    tools->Append(m_menuItemRigCtrlCfg);
+
+    wxMenuItem* m_menuItemOptions;
+    m_menuItemOptions = new wxMenuItem(tools, wxID_ANY, wxString(_("Options")) , wxEmptyString, wxITEM_NORMAL);
+    tools->Append(m_menuItemOptions);
+
+    wxMenuItem* m_menuItemFilter;
+    m_menuItemFilter = new wxMenuItem(tools, wxID_ANY, wxString(_("&Filter")) , wxEmptyString, wxITEM_NORMAL);
+    tools->Append(m_menuItemFilter);
+
+    wxMenuItem* m_menuItemPlugIn;
+    if (!wxIsEmpty(plugInName)) {
+        m_menuItemPlugIn = new wxMenuItem(tools, wxID_ANY, plugInName + wxString(_(" Config")) , wxEmptyString, wxITEM_NORMAL);
+        tools->Append(m_menuItemPlugIn);
+    }
+
+    wxMenuItem* m_menuItemPlayFileToMicIn;
+    m_menuItemPlayFileToMicIn = new wxMenuItem(tools, wxID_ANY, wxString(_("Start/Stop Play File - Mic In")) , wxEmptyString, wxITEM_NORMAL);
+    g_playFileToMicInEventId = m_menuItemPlayFileToMicIn->GetId();
+    tools->Append(m_menuItemPlayFileToMicIn);
+
+    wxMenuItem* m_menuItemRecFileFromRadio;
+    m_menuItemRecFileFromRadio = new wxMenuItem(tools, wxID_ANY, wxString(_("Start/Stop Record File - From Radio")) , wxEmptyString, wxITEM_NORMAL);
+    g_recFileFromRadioEventId = m_menuItemRecFileFromRadio->GetId();
+    tools->Append(m_menuItemRecFileFromRadio);
+
+    wxMenuItem* m_menuItemPlayFileFromRadio;
+    m_menuItemPlayFileFromRadio = new wxMenuItem(tools, wxID_ANY, wxString(_("Start/Stop Play File - From Radio")) , wxEmptyString, wxITEM_NORMAL);
+    g_playFileFromRadioEventId = m_menuItemPlayFileFromRadio->GetId();
+    tools->Append(m_menuItemPlayFileFromRadio);
+    m_menubarMain->Append(tools, _("&Tools"));
+
+    help = new wxMenu();
+    wxMenuItem* m_menuItemHelpUpdates;
+    m_menuItemHelpUpdates = new wxMenuItem(help, wxID_ANY, wxString(_("Check for Updates")) , wxEmptyString, wxITEM_NORMAL);
+    help->Append(m_menuItemHelpUpdates);
+    m_menuItemHelpUpdates->Enable(false);
+
+    wxMenuItem* m_menuItemAbout;
+    m_menuItemAbout = new wxMenuItem(help, ID_ABOUT, wxString(_("&About")) , _("About this program"), wxITEM_NORMAL);
+    help->Append(m_menuItemAbout);
+
+    m_menubarMain->Append(help, _("&Help"));
+
+    this->SetMenuBar(m_menubarMain);
+
+    wxBoxSizer* bSizer1;
+    bSizer1 = new wxBoxSizer(wxHORIZONTAL);
+
+    //=====================================================
+    // Left side
+    //=====================================================
+    wxBoxSizer* leftSizer;
+    leftSizer = new wxBoxSizer(wxVERTICAL);
+
+    wxStaticBoxSizer* snrSizer;
+    snrSizer = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("SNR")), wxVERTICAL);
+
+    //------------------------------
+    // S/N ratio Guage (vert. bargraph)
+    //------------------------------
+    m_gaugeSNR = new wxGauge(this, wxID_ANY, 25, wxDefaultPosition, wxSize(15,135), wxGA_SMOOTH|wxGA_VERTICAL);
+    m_gaugeSNR->SetToolTip(_("Displays signal to noise ratio in dB."));
+    snrSizer->Add(m_gaugeSNR, 1, wxALIGN_CENTER_HORIZONTAL|wxALL, 10);
+
+    //------------------------------
+    // Box for S/N ratio (Numeric)
+    //------------------------------
+    m_textSNR = new wxStaticText(this, wxID_ANY, wxT(" 0.0"), wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE);
+    snrSizer->Add(m_textSNR, 0, wxALIGN_CENTER_HORIZONTAL, 1);
+
+    //------------------------------
+    // S/N ratio slow Checkbox
+    //------------------------------
+    m_ckboxSNR = new wxCheckBox(this, wxID_ANY, _("Slow"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    m_ckboxSNR->SetToolTip(_("Smooth but slow SNR estimation"));
+    snrSizer->Add(m_ckboxSNR, 0, wxALIGN_CENTER_HORIZONTAL, 5);
+
+    leftSizer->Add(snrSizer, 2, wxALIGN_CENTER_HORIZONTAL|wxEXPAND|wxALL, 1);
+
+    //------------------------------
+    // Sync  Indicator box
+    //------------------------------
+    wxStaticBoxSizer* sbSizer3_33;
+    sbSizer3_33 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Sync")), wxVERTICAL);
+
+    m_rbSync = new wxRadioButton( this, wxID_ANY, wxT(""), wxDefaultPosition, wxDefaultSize, wxRB_GROUP);
+    m_rbSync->SetForegroundColour( wxColour( 255, 0, 0 ) );
+    sbSizer3_33->Add(m_rbSync, 0, wxALIGN_CENTER|wxALL, 1);
+    leftSizer->Add(sbSizer3_33,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    //------------------------------
+    // BER Frames box
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_ber;
+    sbSizer_ber = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Bit Error Rate")), wxVERTICAL);
+
+    m_BtnBerReset = new wxButton(this, wxID_ANY, _("Reset"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_ber->Add(m_BtnBerReset, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+
+    m_textBits = new wxStaticText(this, wxID_ANY, wxT("Bits: 0"), wxDefaultPosition, wxDefaultSize, wxALIGN_LEFT);
+    sbSizer_ber->Add(m_textBits, 0, wxALIGN_LEFT, 1);
+    m_textErrors = new wxStaticText(this, wxID_ANY, wxT("Errs: 0"), wxDefaultPosition, wxDefaultSize, wxALIGN_LEFT);
+    sbSizer_ber->Add(m_textErrors, 0, wxALIGN_LEFT, 1);
+    m_textBER = new wxStaticText(this, wxID_ANY, wxT("BER: 0.0"), wxDefaultPosition, wxDefaultSize, wxALIGN_LEFT);
+    sbSizer_ber->Add(m_textBER, 0, wxALIGN_LEFT, 1);
+
+    m_textResyncs = new wxStaticText(this, wxID_ANY, wxT("Resyncs: 0"), wxDefaultPosition, wxDefaultSize, wxALIGN_LEFT);
+    sbSizer_ber->Add(m_textResyncs, 0, wxALIGN_LEFT, 1);
+
+    leftSizer->Add(sbSizer_ber,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    //------------------------------
+    // Signal Level(vert. bargraph)
+    //------------------------------
+    wxStaticBoxSizer* levelSizer;
+    levelSizer = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Level")), wxVERTICAL);
+
+    m_textLevel = new wxStaticText(this, wxID_ANY, wxT(""), wxDefaultPosition, wxSize(60,-1), wxALIGN_CENTRE);
+    m_textLevel->SetForegroundColour(wxColour(255,0,0));
+    levelSizer->Add(m_textLevel, 0, wxALIGN_LEFT, 1);
+
+    m_gaugeLevel = new wxGauge(this, wxID_ANY, 100, wxDefaultPosition, wxSize(15,135), wxGA_SMOOTH|wxGA_VERTICAL);
+    m_gaugeLevel->SetToolTip(_("Peak of From Radio in Rx, or peak of From Mic in Tx mode.  If Red you should reduce your levels"));
+    levelSizer->Add(m_gaugeLevel, 1, wxALIGN_CENTER_HORIZONTAL|wxALL, 10);
+
+    leftSizer->Add(levelSizer, 2, wxALIGN_CENTER|wxALL|wxEXPAND, 1);
+
+    bSizer1->Add(leftSizer, 0, wxALL|wxEXPAND, 5);
+
+    //=====================================================
+    // Center Section
+    //=====================================================
+    wxBoxSizer* centerSizer;
+    centerSizer = new wxBoxSizer(wxVERTICAL);
+    wxBoxSizer* upperSizer;
+    upperSizer = new wxBoxSizer(wxVERTICAL);
+
+    //=====================================================
+    // Tabbed Notebook control containing display graphs
+    //=====================================================
+    //m_auiNbookCtrl = new wxAuiNotebook(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxAUI_NB_BOTTOM|wxAUI_NB_DEFAULT_STYLE);
+    //long style = wxAUI_NB_TAB_SPLIT | wxAUI_NB_TAB_MOVE | wxAUI_NB_SCROLL_BUTTONS | wxAUI_NB_CLOSE_ON_ACTIVE_TAB | wxAUI_NB_MIDDLE_CLICK_CLOSE;
+    long nb_style = wxAUI_NB_BOTTOM | wxAUI_NB_TAB_SPLIT | wxAUI_NB_TAB_MOVE | wxAUI_NB_SCROLL_BUTTONS;
+    m_auiNbookCtrl = new wxAuiNotebook(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, nb_style);
+    // This line sets the fontsize for the tabs on the notebook control
+    m_auiNbookCtrl->SetFont(wxFont(8, 70, 90, 90, false, wxEmptyString));
+
+    upperSizer->Add(m_auiNbookCtrl, 1, wxALIGN_TOP|wxEXPAND, 1);
+    centerSizer->Add(upperSizer, 1, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALIGN_TOP|wxEXPAND, 0);
+
+    // lower middle used for user ID
+
+    wxBoxSizer* lowerSizer;
+    lowerSizer = new wxBoxSizer(wxHORIZONTAL);
+
+    m_BtnCallSignReset = new wxButton(this, wxID_ANY, _("Clear"), wxDefaultPosition, wxDefaultSize, 0);
+    lowerSizer->Add(m_BtnCallSignReset, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+
+    wxBoxSizer* bSizer15;
+    bSizer15 = new wxBoxSizer(wxVERTICAL);
+    m_txtCtrlCallSign = new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxTE_READONLY);
+    m_txtCtrlCallSign->SetToolTip(_("Call Sign of transmitting station will appear here"));
+    bSizer15->Add(m_txtCtrlCallSign, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL|wxEXPAND, 5);
+    lowerSizer->Add(bSizer15, 1, wxEXPAND, 5);
+
+#ifdef __EXPERIMENTAL_UDP__
+    wxStaticBoxSizer* sbSizer_Checksum = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Checksums")), wxHORIZONTAL);
+
+    wxStaticText *goodLabel = new wxStaticText(this, wxID_ANY, wxT("Good: "), wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE);
+    sbSizer_Checksum->Add(goodLabel, 0, 0, 2);
+    m_txtChecksumGood = new wxStaticText(this, wxID_ANY, wxT("0"), wxDefaultPosition, wxSize(30,-1), wxALIGN_CENTRE);
+    sbSizer_Checksum->Add(m_txtChecksumGood, 0, 0, 2);
+
+    wxStaticText *badLabel = new wxStaticText(this, wxID_ANY, wxT("Bad: "), wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE);
+    sbSizer_Checksum->Add(badLabel, 0, 0, 1);
+    m_txtChecksumBad = new wxStaticText(this, wxID_ANY, wxT("0"), wxDefaultPosition, wxSize(30,-1), wxALIGN_CENTRE);
+    sbSizer_Checksum->Add(m_txtChecksumBad, 0, 0, 1);
+
+    lowerSizer->Add(sbSizer_Checksum, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+#endif
+
+    //=====================================================
+    // These are the buttons that autosend the userid (?)
+    //=====================================================
+
+    // DR 4 Dec - taken off for screen for Beta release to avoid questions on their use until
+    // we implement this feature
+ #ifdef UNIMPLEMENTED
+    wxBoxSizer* bSizer141;
+    bSizer141 = new wxBoxSizer(wxHORIZONTAL);
+
+    // TxID
+    //---------
+    m_togTxID = new wxToggleButton(this, wxID_ANY, _("TxID"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togTxID->SetToolTip(_("Send Tx ID information"));
+    bSizer141->Add(m_togTxID, 0, wxALIGN_CENTER_HORIZONTAL|wxALL, 5);
+
+    // RxID
+    //---------
+    m_togRxID = new wxToggleButton(this, wxID_ANY, _("RxID"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togRxID->SetToolTip(_("Enable reception of ID information"));
+    bSizer141->Add(m_togRxID, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_LEFT|wxALL|wxFIXED_MINSIZE, 5);
+
+    lowerSizer->Add(bSizer141, 0, wxALIGN_RIGHT, 5);
+#endif
+
+    centerSizer->Add(lowerSizer, 0, wxALIGN_BOTTOM|wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxEXPAND, 2);
+    bSizer1->Add(centerSizer, 4, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 1);
+
+    //=====================================================
+    // Right side
+    //=====================================================
+    wxBoxSizer* rightSizer;
+    rightSizer = new wxBoxSizer(wxVERTICAL);
+
+    //=====================================================
+    // Squelch Slider Control
+    //=====================================================
+    wxStaticBoxSizer* sbSizer3;
+    sbSizer3 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Squelch")), wxVERTICAL);
+
+    m_sliderSQ = new wxSlider(this, wxID_ANY, 0, 0, 40, wxDefaultPosition, wxSize(-1,80), wxSL_AUTOTICKS|wxSL_INVERSE|wxSL_VERTICAL);
+    m_sliderSQ->SetToolTip(_("Set Squelch level in dB."));
+
+    sbSizer3->Add(m_sliderSQ, 1, wxALIGN_CENTER_HORIZONTAL, 0);
+
+    //------------------------------
+    // Squelch Level static text box
+    //------------------------------
+    m_textSQ = new wxStaticText(this, wxID_ANY, wxT(""), wxDefaultPosition, wxDefaultSize, wxALIGN_CENTRE);
+
+    sbSizer3->Add(m_textSQ, 0, wxALIGN_CENTER_HORIZONTAL, 0);
+
+    //------------------------------
+    // Squelch Toggle Checkbox
+    //------------------------------
+    m_ckboxSQ = new wxCheckBox(this, wxID_ANY, _(""), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+
+    sbSizer3->Add(m_ckboxSQ, 0, wxALIGN_CENTER_HORIZONTAL, 0);
+    rightSizer->Add(sbSizer3, 2, wxALIGN_CENTER_HORIZONTAL|wxEXPAND, 0);
+
+    //rightSizer->Add(sbSizer3_33,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    /* new --- */
+
+    //------------------------------
+    // Mode box
+    //------------------------------
+    wxStaticBoxSizer* sbSizer_mode;
+    sbSizer_mode = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Mode")), wxVERTICAL);
+
+#ifdef DISABLED_FEATURE
+    m_rb1400old = new wxRadioButton( this, wxID_ANY, wxT("1400 V0.91"), wxDefaultPosition, wxDefaultSize, wxRB_GROUP);
+    sbSizer_mode->Add(m_rb1400old, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb1400 = new wxRadioButton( this, wxID_ANY, wxT("1400"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_mode->Add(m_rb1400, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb700 = new wxRadioButton( this, wxID_ANY, wxT("700"), wxDefaultPosition, wxDefaultSize, wxRB_GROUP);
+    sbSizer_mode->Add(m_rb700, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb700b = new wxRadioButton( this, wxID_ANY, wxT("700B"), wxDefaultPosition, wxDefaultSize, wxRB_GROUP);
+    sbSizer_mode->Add(m_rb700b, 0, wxALIGN_LEFT|wxALL, 1);
+#endif
+    m_rb700c = new wxRadioButton( this, wxID_ANY, wxT("700C"), wxDefaultPosition, wxDefaultSize,  wxRB_GROUP);
+    sbSizer_mode->Add(m_rb700c, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb800xa = new wxRadioButton( this, wxID_ANY, wxT("800XA"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_mode->Add(m_rb800xa, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb1600 = new wxRadioButton( this, wxID_ANY, wxT("1600"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_mode->Add(m_rb1600, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb1600->SetValue(true);
+
+    m_rbPlugIn = NULL;
+    if (!wxIsEmpty(plugInName)) {
+        // Optional plug in
+
+        m_rbPlugIn = new wxRadioButton( this, wxID_ANY, plugInName, wxDefaultPosition, wxDefaultSize, 0);
+        sbSizer_mode->Add(m_rbPlugIn, 0, wxALIGN_LEFT|wxALL, 1);
+    }
+
+#ifdef DISABLED_FEATURE
+    m_rb1600Wide = new wxRadioButton( this, wxID_ANY, wxT("1600 Wide"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_mode->Add(m_rb1600Wide, 0, wxALIGN_LEFT|wxALL, 1);
+    m_rb2000 = new wxRadioButton( this, wxID_ANY, wxT("2000"), wxDefaultPosition, wxDefaultSize, 0);
+    sbSizer_mode->Add(m_rb2000, 0, wxALIGN_LEFT|wxALL, 1);
+#endif
+
+    rightSizer->Add(sbSizer_mode,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+
+    #ifdef MOVED_TO_OPTIONS_DIALOG
+    /* new --- */
+
+    //------------------------------
+    // Test Frames box
+    //------------------------------
+
+    wxStaticBoxSizer* sbSizer_testFrames;
+    sbSizer_testFrames = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Test Frames")), wxVERTICAL);
+
+    m_ckboxTestFrame = new wxCheckBox(this, wxID_ANY, _("Enable"), wxDefaultPosition, wxDefaultSize, wxCHK_2STATE);
+    sbSizer_testFrames->Add(m_ckboxTestFrame, 0, wxALIGN_LEFT, 0);
+
+    rightSizer->Add(sbSizer_testFrames,0, wxALIGN_CENTER_HORIZONTAL|wxALL|wxEXPAND, 3);
+    #endif
+
+    //=====================================================
+    // Control Toggles box
+    //=====================================================
+    wxStaticBoxSizer* sbSizer5;
+    sbSizer5 = new wxStaticBoxSizer(new wxStaticBox(this, wxID_ANY, _("Control")), wxVERTICAL);
+    wxBoxSizer* bSizer1511;
+    bSizer1511 = new wxBoxSizer(wxVERTICAL);
+
+    //-------------------------------
+    // Stop/Stop signal processing (rx and tx)
+    //-------------------------------
+    m_togBtnOnOff = new wxToggleButton(this, wxID_ANY, _("Start"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togBtnOnOff->SetToolTip(_("Begin/End receiving data."));
+    bSizer1511->Add(m_togBtnOnOff, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    sbSizer5->Add(bSizer1511, 0, wxEXPAND, 1);
+
+#ifdef UNIMPLEMENTED
+    //------------------------------
+    // Toggle Loopback button for RX
+    //------------------------------
+    wxBoxSizer* bSizer15113;
+    bSizer15113 = new wxBoxSizer(wxHORIZONTAL);
+    wxBoxSizer* bSizer15111;
+    bSizer15111 = new wxBoxSizer(wxVERTICAL);
+    wxSize wxSz = wxSize(44, 30);
+    m_togBtnLoopRx = new wxToggleButton(this, wxID_ANY, _("Loop\nRX"), wxDefaultPosition, wxSz, 0);
+    m_togBtnLoopRx->SetFont(wxFont(6, 70, 90, 90, false, wxEmptyString));
+    m_togBtnLoopRx->SetToolTip(_("Loopback Receive audio data."));
+
+    bSizer15111->Add(m_togBtnLoopRx, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 0);
+
+    //sbSizer5->Add(bSizer15111, 0, wxEXPAND, 1);
+    bSizer15113->Add(bSizer15111, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 0);
+
+    //------------------------------
+    // Toggle Loopback button for Tx
+    //------------------------------
+    wxBoxSizer* bSizer15112;
+    bSizer15112 = new wxBoxSizer(wxVERTICAL);
+    m_togBtnLoopTx = new wxToggleButton(this, wxID_ANY, _("Loop\nTX"), wxDefaultPosition, wxSz, 0);
+    m_togBtnLoopTx->SetFont(wxFont(6, 70, 90, 90, false, wxEmptyString));
+    m_togBtnLoopTx->SetToolTip(_("Loopback Transmit audio data."));
+
+    bSizer15112->Add(m_togBtnLoopTx, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 0);
+    bSizer15113->Add(bSizer15112, 0,  wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 0);
+
+    sbSizer5->Add(bSizer15113, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+#endif
+
+    //------------------------------
+    // Split Frequency Mode Toggle
+    //------------------------------
+    wxBoxSizer* bSizer151;
+    bSizer151 = new wxBoxSizer(wxVERTICAL);
+
+    m_togBtnSplit = new wxToggleButton(this, wxID_ANY, _("Split"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togBtnSplit->SetToolTip(_("Toggle split frequency mode."));
+
+    bSizer151->Add(m_togBtnSplit, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    sbSizer5->Add(bSizer151, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL|wxEXPAND, 1);
+    wxBoxSizer* bSizer13;
+    bSizer13 = new wxBoxSizer(wxVERTICAL);
+
+    //------------------------------
+    // Analog Passthrough Toggle
+    //------------------------------
+    m_togBtnAnalog = new wxToggleButton(this, wxID_ANY, _("Analog"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togBtnAnalog->SetToolTip(_("Toggle analog/digital operation."));
+    bSizer13->Add(m_togBtnAnalog, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    sbSizer5->Add(bSizer13, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+
+    //------------------------------
+    // Voice Keyer Toggle
+    //------------------------------
+    m_togBtnVoiceKeyer = new wxToggleButton(this, wxID_ANY, _("Voice Keyer"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togBtnVoiceKeyer->SetToolTip(_("Toggle Voice Keyer"));
+    wxBoxSizer* bSizer13a = new wxBoxSizer(wxVERTICAL);    
+    bSizer13a->Add(m_togBtnVoiceKeyer, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    sbSizer5->Add(bSizer13a, 0, wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+
+    // not implemented on fdmdv2
+#ifdef ALC
+    //------------------------------
+    // Toggle for ALC
+    //------------------------------
+    wxBoxSizer* bSizer14;
+    bSizer14 = new wxBoxSizer(wxVERTICAL);
+    m_togBtnALC = new wxToggleButton(this, wxID_ANY, _("ALC"), wxDefaultPosition, wxDefaultSize, 0);
+    m_togBtnALC->SetToolTip(_("Toggle automatic level control mode."));
+
+    bSizer14->Add(m_togBtnALC, 0, wxALL, 1);
+    sbSizer5->Add(bSizer14, 0, wxALIGN_CENTER|wxALIGN_CENTER_HORIZONTAL|wxALL, 1);
+#endif
+
+    //------------------------------
+    // PTT button: Toggle Transmit/Receive mode
+    //------------------------------
+    wxBoxSizer* bSizer11;
+    bSizer11 = new wxBoxSizer(wxVERTICAL);
+    m_btnTogPTT = new wxToggleButton(this, wxID_ANY, _("PTT"), wxDefaultPosition, wxDefaultSize, 0);
+    m_btnTogPTT->SetToolTip(_("Push to Talk - Switch between Receive and Transmit - you can also use the space bar "));
+    bSizer11->Add(m_btnTogPTT, 1, wxALIGN_CENTER|wxALIGN_CENTER_HORIZONTAL|wxALIGN_CENTER_VERTICAL|wxALL, 1);
+    sbSizer5->Add(bSizer11, 2, wxEXPAND, 1);
+    rightSizer->Add(sbSizer5, 2, wxALIGN_CENTER|wxALL|wxEXPAND, 3);
+    bSizer1->Add(rightSizer, 0, wxALL|wxEXPAND, 3);
+    this->SetSizer(bSizer1);
+    this->Layout();
+    m_statusBar1 = this->CreateStatusBar(3, wxST_SIZEGRIP, wxID_ANY);
+
+    //=====================================================
+    // End of layout
+    //=====================================================
+
+    //-------------------
+    // Connect Events
+    //-------------------
+    this->Connect(wxEVT_CLOSE_WINDOW, wxCloseEventHandler(TopFrame::topFrame_OnClose));
+    this->Connect(wxEVT_PAINT, wxPaintEventHandler(TopFrame::topFrame_OnPaint));
+    this->Connect(wxEVT_SIZE, wxSizeEventHandler(TopFrame::topFrame_OnSize));
+    this->Connect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::topFrame_OnUpdateUI));
+
+    this->Connect(m_menuItemExit->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnExit));
+    this->Connect(m_menuItemOnTop->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnTop));
+
+    this->Connect(m_menuItemAudio->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsAudio));
+    this->Connect(m_menuItemAudio->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsAudioUI));
+    this->Connect(m_menuItemFilter->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsFilter));
+    this->Connect(m_menuItemFilter->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsFilterUI));
+    this->Connect(m_menuItemRigCtrlCfg->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsComCfg));
+    this->Connect(m_menuItemRigCtrlCfg->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsComCfgUI));
+    this->Connect(m_menuItemOptions->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsOptions));
+    this->Connect(m_menuItemOptions->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsOptionsUI));
+
+    if (!wxIsEmpty(plugInName)) {
+        this->Connect(m_menuItemPlugIn->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsPlugInCfg));
+        this->Connect(m_menuItemPlugIn->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsPlugInCfgUI));
+    }
+
+    this->Connect(m_menuItemPlayFileToMicIn->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnPlayFileToMicIn));
+    this->Connect(m_menuItemRecFileFromRadio->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnRecFileFromRadio));
+    this->Connect(m_menuItemPlayFileFromRadio->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnPlayFileFromRadio));
+
+    this->Connect(m_menuItemHelpUpdates->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnHelpCheckUpdates));
+    this->Connect(m_menuItemHelpUpdates->GetId(), wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnHelpCheckUpdatesUI));
+    this->Connect(m_menuItemAbout->GetId(), wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnHelpAbout));
+    //m_togRxID->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnRxID), NULL, this);
+    //m_togTxID->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnTxID), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_TOP, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_BOTTOM, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_LINEUP, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_LINEDOWN, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_PAGEUP, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_PAGEDOWN, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_THUMBTRACK, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_THUMBRELEASE, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_BOTTOM, wxScrollEventHandler(TopFrame::OnSliderScrollBottom), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(TopFrame::OnCmdSliderScrollChanged), NULL, this);
+    m_sliderSQ->Connect(wxEVT_SCROLL_TOP, wxScrollEventHandler(TopFrame::OnSliderScrollTop), NULL, this);
+    m_ckboxSQ->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(TopFrame::OnCheckSQClick), NULL, this);
+
+    m_ckboxSNR->Connect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(TopFrame::OnCheckSNRClick), NULL, this);
+
+    m_togBtnOnOff->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnOnOff), NULL, this);
+    m_togBtnSplit->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnSplitClick), NULL, this);
+    m_togBtnAnalog->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnAnalogClick), NULL, this);
+    m_togBtnVoiceKeyer->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnVoiceKeyerClick), NULL, this);
+#ifdef ALC
+    m_togBtnALC->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnALCClick), NULL, this);
+#endif
+    m_btnTogPTT->Connect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnPTT), NULL, this);
+
+    m_BtnCallSignReset->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnCallSignReset), NULL, this);
+    m_BtnBerReset->Connect(wxEVT_COMMAND_BUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnBerReset), NULL, this);
+}
+
+TopFrame::~TopFrame()
+{
+    //-------------------
+    // Disconnect Events
+    //-------------------
+    this->Disconnect(wxEVT_CLOSE_WINDOW, wxCloseEventHandler(TopFrame::topFrame_OnClose));
+    this->Disconnect(wxEVT_PAINT, wxPaintEventHandler(TopFrame::topFrame_OnPaint));
+    this->Disconnect(wxEVT_SIZE, wxSizeEventHandler(TopFrame::topFrame_OnSize));
+    this->Disconnect(wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::topFrame_OnUpdateUI));
+    this->Disconnect(ID_EXIT, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnExit));
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsAudio));
+    this->Disconnect(wxID_ANY, wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsAudioUI));
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsFilter));
+    this->Disconnect(wxID_ANY, wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsFilterUI));
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsComCfg));
+    this->Disconnect(wxID_ANY, wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsComCfgUI));
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsOptions));
+    this->Disconnect(wxID_ANY, wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnToolsOptionsUI));
+
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnToolsPlugInCfg));
+
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnPlayFileToMicIn));
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnRecFileFromRadio));
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnPlayFileFromRadio));
+
+    this->Disconnect(wxID_ANY, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnHelpCheckUpdates));
+    this->Disconnect(wxID_ANY, wxEVT_UPDATE_UI, wxUpdateUIEventHandler(TopFrame::OnHelpCheckUpdatesUI));
+    this->Disconnect(ID_ABOUT, wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(TopFrame::OnHelpAbout));
+    //m_togRxID->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnRxID), NULL, this);
+    //m_togTxID->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnTxID), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_TOP, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_BOTTOM, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_LINEUP, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_LINEDOWN, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_PAGEUP, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_PAGEDOWN, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_THUMBTRACK, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_THUMBRELEASE, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(TopFrame::OnCmdSliderScroll), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_BOTTOM, wxScrollEventHandler(TopFrame::OnSliderScrollBottom), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_CHANGED, wxScrollEventHandler(TopFrame::OnCmdSliderScrollChanged), NULL, this);
+    m_sliderSQ->Disconnect(wxEVT_SCROLL_TOP, wxScrollEventHandler(TopFrame::OnSliderScrollTop), NULL, this);
+    m_ckboxSQ->Disconnect(wxEVT_COMMAND_CHECKBOX_CLICKED, wxCommandEventHandler(TopFrame::OnCheckSQClick), NULL, this);
+
+    m_togBtnOnOff->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnOnOff), NULL, this);
+    m_togBtnSplit->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnSplitClick), NULL, this);
+    m_togBtnAnalog->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnAnalogClick), NULL, this);
+    m_togBtnVoiceKeyer->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnVoiceKeyerClick), NULL, this);
+#ifdef ALC
+    m_togBtnALC->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnALCClick), NULL, this);
+#endif
+    m_btnTogPTT->Disconnect(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, wxCommandEventHandler(TopFrame::OnTogBtnPTT), NULL, this);
+
+}
+
diff --git a/src/topFrame.h b/src/topFrame.h
new file mode 100644
index 0000000..37950a9
--- /dev/null
+++ b/src/topFrame.h
@@ -0,0 +1,194 @@
+//==========================================================================
+// Name:            topFrame.h
+//
+// Purpose:         Implements simple wxWidgets application with GUI.
+// Created:         Apr. 9, 2012
+// Authors:         David Rowe, David Witten
+//
+// License:
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU Lesser General Public License version 2.1,
+//  as published by the Free Software Foundation.  This program is
+//  distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+//  License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public License
+//  along with this program; if not, see <http://www.gnu.org/licenses/>.
+//
+//==========================================================================
+#ifndef __TOPFRAME_H__
+#define __TOPFRAME_H__
+
+#include "version.h"
+#include <wx/artprov.h>
+#include <wx/xrc/xmlres.h>
+#include <wx/intl.h>
+#include <wx/string.h>
+#include <wx/bitmap.h>
+#include <wx/image.h>
+#include <wx/icon.h>
+#include <wx/menu.h>
+#include <wx/gdicmn.h>
+#include <wx/font.h>
+#include <wx/colour.h>
+#include <wx/settings.h>
+#include <wx/gauge.h>
+#include <wx/textctrl.h>
+#include <wx/sizer.h>
+#include <wx/statbox.h>
+#include <wx/aui/auibook.h>
+#include <wx/tglbtn.h>
+#include <wx/slider.h>
+#include <wx/checkbox.h>
+#include <wx/statusbr.h>
+#include <wx/frame.h>
+#include <wx/statbmp.h>
+#include <wx/stattext.h>
+#include <wx/button.h>
+#include <wx/dialog.h>
+#include <wx/radiobut.h>
+#include <wx/combobox.h>
+#include <wx/panel.h>
+#include <wx/listbox.h>
+#include <wx/notebook.h>
+#include <wx/listctrl.h>
+
+
+///////////////////////////////////////////////////////////////////////////
+
+#define ID_OPEN 1000
+#define ID_SAVE 1001
+#define ID_CLOSE 1002
+#define ID_EXIT 1003
+#define ID_COPY 1004
+#define ID_CUT 1005
+#define ID_PASTE 1006
+#define ID_OPTIONS 1007
+#define ID_ABOUT 1008
+
+///////////////////////////////////////////////////////////////////////////////
+/// Class TopFrame
+///////////////////////////////////////////////////////////////////////////////
+class TopFrame : public wxFrame
+{
+    private:
+
+    protected:
+        wxMenuBar* m_menubarMain;
+        wxMenu* file;
+        wxMenu* edit;
+        wxMenu* tools;
+        wxMenu* help;
+        wxGauge* m_gaugeSNR;
+        wxStaticText* m_textSNR;
+        wxCheckBox* m_ckboxSNR;
+        wxGauge* m_gaugeLevel;
+        wxStaticText* m_textLevel;
+
+        wxButton*     m_BtnCallSignReset;
+        wxTextCtrl*   m_txtCtrlCallSign;
+        wxStaticText* m_txtChecksumGood;
+        wxStaticText* m_txtChecksumBad;
+
+        wxSlider* m_sliderSQ;
+        wxCheckBox* m_ckboxSQ;
+        wxStaticText* m_textSQ;
+        wxStatusBar* m_statusBar1;
+
+        wxButton*     m_BtnBerReset;
+        wxStaticText  *m_textBits;
+        wxStaticText  *m_textErrors;
+        wxStaticText  *m_textBER;
+        wxStaticText  *m_textResyncs;
+
+        wxRadioButton *m_rbSync;
+        wxRadioButton *m_rb1400old;
+        wxRadioButton *m_rb1400;
+        wxRadioButton *m_rb700;
+        wxRadioButton *m_rb700b;
+        wxRadioButton *m_rb700c;
+        wxRadioButton *m_rb800xa;
+        wxRadioButton *m_rb1600;
+        wxRadioButton *m_rb2000;
+        wxRadioButton *m_rb1600Wide;
+        wxRadioButton *m_rbPlugIn;
+
+        // Virtual event handlers, overide them in your derived class
+        virtual void topFrame_OnClose( wxCloseEvent& event ) { event.Skip(); }
+        virtual void topFrame_OnPaint( wxPaintEvent& event ) { event.Skip(); }
+        virtual void topFrame_OnSize( wxSizeEvent& event ) { event.Skip(); }
+        virtual void topFrame_OnUpdateUI( wxUpdateUIEvent& event ) { event.Skip(); }
+
+        virtual void OnExit( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTop( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnToolsAudio( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnToolsAudioUI( wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnToolsFilter( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnToolsFilterUI( wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnToolsOptions( wxCommandEvent& event ) { event.Skip(); }
+
+        virtual void OnToolsPlugInCfg( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnToolsPlugInCfgUI( wxUpdateUIEvent& event ) { event.Skip(); }
+
+        virtual void OnToolsUDP( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnToolsOptionsUI( wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnToolsComCfg( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnToolsComCfgUI( wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnPlayFileToMicIn( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnRecFileFromRadio( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnPlayFileFromRadio( wxCommandEvent& event ) { event.Skip(); }
+
+        virtual void OnHelpCheckUpdates( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnHelpCheckUpdatesUI( wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnHelpAbout( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnRxID( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnTxID( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnCmdSliderScroll( wxScrollEvent& event ) { event.Skip(); }
+        virtual void OnSliderScrollBottom( wxScrollEvent& event ) { event.Skip(); }
+        virtual void OnCmdSliderScrollChanged( wxScrollEvent& event ) { event.Skip(); }
+        virtual void OnSliderScrollTop( wxScrollEvent& event ) { event.Skip(); }
+        virtual void OnCheckSQClick( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnCheckSNRClick( wxCommandEvent& event ) { event.Skip(); }
+
+        virtual void OnTogBtnLoopRx( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnLoopTx( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnOnOff( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnSplitClick( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnAnalogClick( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnVoiceKeyerClick( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnALCClick( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnPTT( wxCommandEvent& event ) { event.Skip(); }
+
+        virtual void OnTogBtnSplitClickUI(wxUpdateUIEvent& event) { event.Skip(); }
+        virtual void OnTogBtnAnalogClickUI(wxUpdateUIEvent& event) { event.Skip(); }
+        virtual void OnTogBtnALCClickUI(wxUpdateUIEvent& event) { event.Skip(); }
+        virtual void OnTogBtnRxIDUI(wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnTxIDUI(wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnPTT_UI(wxUpdateUIEvent& event ) { event.Skip(); }
+        virtual void OnTogBtnOnOffUI(wxUpdateUIEvent& event ) { event.Skip(); }
+
+        virtual void OnCallSignReset( wxCommandEvent& event ) { event.Skip(); }
+        virtual void OnBerReset( wxCommandEvent& event ) { event.Skip(); }
+
+    public:
+        wxToggleButton* m_togRxID;
+        wxToggleButton* m_togTxID;
+        wxToggleButton* m_togBtnOnOff;
+        wxToggleButton* m_togBtnSplit;
+        wxToggleButton* m_togBtnAnalog;
+        wxToggleButton* m_togBtnVoiceKeyer;
+        wxToggleButton* m_togBtnALC;
+        wxToggleButton* m_btnTogPTT;
+        wxToggleButton* m_togBtnLoopRx;
+        wxToggleButton* m_togBtnLoopTx;
+        wxAuiNotebook* m_auiNbookCtrl;
+
+        TopFrame( wxString plugInName, wxWindow* parent, wxWindowID id = wxID_ANY, const wxString& title = _("FreeDV ") + _(FREEDV_VERSION), const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxSize(561,300 ), long style = wxDEFAULT_FRAME_STYLE|wxRESIZE_BORDER|wxTAB_TRAVERSAL );
+
+        ~TopFrame();
+};
+
+#endif //__TOPFRAME_H__

-- 
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