Simple mixer control 'PCM',0
  Capabilities: cvolume cswitch
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 45
  Front Left: Capture 36 [80%] [-4.50dB] [on]
  Front Right: Capture 36 [80%] [-4.50dB] [on]
Simple mixer control 'Auto Gain Control',0
  Capabilities: pswitch
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [off]
  Front Right: Playback [off]