[Virtual-pkg-base-maintainers] Bug#833137: base: Noised/low microphone sound (Lenovo IdeaPad B50-30)

[Aleksandr Zelenov]

Package: base
Severity: normal

1. Open gnome-sound-recorder and record your voice. Play your record. You'll hear only noise.
2. Install and openv pavucontrol. In Input devices mute right mic channel and set max volume for left one. Try step 1 again. You'll hear your voice but
 sound is extremely low.
3. In Input devices set microphone (unplugged) instead of built-in. Try step 1. Same result as in 2.

Expected: clear voice with normal sound level.

-- System Information:
Debian Release: 8.5
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'stable-updates'), (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.6.0-0.bpo.1-amd64 (SMP w/2 CPU cores)
Locale: LANG=ru_RU.utf8, LC_CTYPE=ru_RU.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)