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#1 2011-03-12 19:01:34

khoma
Member
Registered: 2011-02-08
Posts: 11

No microphone input with ALSA + ALC889A

Going crazy trying to figure out how to get mic working with ALSA. For some reason, gnome recorder manages to record audio, but anything that uses native ALSA doesn't (like skype). Tried unmuting every single thing there is in alsamixer, but no help. These are my current mixer settings:

amixer 
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Headphone',0
  Capabilities: pswitch penum
  Playback channels: Front Left - Front Right
  Mono:
  Front Left: Playback [on]
  Front Right: Playback [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 255 [100%] [0.00dB]
  Front Right: Playback 255 [100%] [0.00dB]
Simple mixer control 'Front',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'Front Mic',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 29 [94%] [9.00dB] [off]
  Front Right: Playback 29 [94%] [9.00dB] [off]
Simple mixer control 'Front Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 2 [67%]
  Front Right: 2 [67%]
Simple mixer control 'Surround',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [off]
  Front Right: Playback 64 [100%] [0.00dB] [off]
Simple mixer control 'Center',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 64 [100%] [0.00dB] [off]
Simple mixer control 'LFE',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 64 [100%] [0.00dB] [off]
Simple mixer control 'Side',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [off]
  Front Right: Playback 64 [100%] [0.00dB] [off]
Simple mixer control 'Line',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 23 [74%] [0.00dB] [off]
  Front Right: Playback 23 [74%] [0.00dB] [off]
Simple mixer control 'CD',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 24 [77%] [1.50dB] [off]
  Front Right: Playback 24 [77%] [1.50dB] [off]
Simple mixer control 'Mic',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 31
  Mono:
  Front Left: Playback 31 [100%] [12.00dB] [on]
  Front Right: Playback 31 [100%] [12.00dB] [on]
Simple mixer control 'Mic Boost',0
  Capabilities: volume penum
  Playback channels: Front Left - Front Right
  Capture channels: Front Left - Front Right
  Limits: 0 - 3
  Front Left: 0 [0%]
  Front Right: 0 [0%]
Simple mixer control 'IEC958',0
  Capabilities: pswitch pswitch-joined cswitch cswitch-joined penum
  Playback channels: Mono
  Capture channels: Mono
  Mono: Playback [on] Capture [off]
Simple mixer control 'IEC958 Default PCM',0
  Capabilities: pswitch pswitch-joined penum
  Playback channels: Mono
  Mono: Playback [on]
Simple mixer control 'Capture',0
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 46
  Front Left: Capture 40 [87%] [24.00dB] [on]
  Front Right: Capture 40 [87%] [24.00dB] [on]
Simple mixer control 'Capture',1
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 46
  Front Left: Capture 42 [91%] [26.00dB] [on]
  Front Right: Capture 42 [91%] [26.00dB] [on]
Simple mixer control 'Capture',2
  Capabilities: cvolume cswitch penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 46
  Front Left: Capture 41 [89%] [25.00dB] [on]
  Front Right: Capture 41 [89%] [25.00dB] [on]
Simple mixer control 'Channel Mode',0
  Capabilities: enum
  Items: '6ch' '8ch'
  Item0: '6ch'
Simple mixer control 'Digital',0
  Capabilities: cvolume penum
  Capture channels: Front Left - Front Right
  Limits: Capture 0 - 120
  Front Left: Capture 109 [91%] [24.50dB]
  Front Right: Capture 109 [91%] [24.50dB]
Simple mixer control 'Input Source',0
  Capabilities: cenum
  Items: 'Mic' 'Front Mic' 'Line' 'CD'
  Item0: 'Line'
Simple mixer control 'Input Source',1
  Capabilities: cenum
  Items: 'Mic' 'Front Mic' 'Line' 'CD'
  Item0: 'Line'
Simple mixer control 'Input Source',2
  Capabilities: cenum
  Items: 'Mic' 'Front Mic' 'Line' 'CD'
  Item0: 'Line'

Anyone able to notice anything wrong?

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#2 2011-03-12 20:17:06

Jebususu
Member
Registered: 2011-02-27
Posts: 74

Re: No microphone input with ALSA + ALC889A

I'm having the same problems as you, when i record a test using arecord all I can manage to record is static/feedback/general noise.. no voice.. Have done a lot of forum searching but none of the replies have fixed my problem, If anyone could shed any light on the situation would be much appreciated as I require the ability to record voice for my work. TIA !

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#3 2011-03-12 21:54:23

Jebususu
Member
Registered: 2011-02-27
Posts: 74

Re: No microphone input with ALSA + ALC889A

Hm, After changing the port, (was using rear mic port, now using front) and playing around in alsamixer, It seems to work fine. If you think it will help I can post a screen of my alsamixer. I would recommend trying the front port (if you have one, that is.)

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#4 2011-03-13 22:37:30

pigiron
Member
From: USA
Registered: 2009-07-14
Posts: 150

Re: No microphone input with ALSA + ALC889A

@khoma - The last three settings of your ALSA mixer dump show that "Input Source 0", "Input Source 1", and "Input Source 2" are all set to "Line". Try changing some/all of them to "Mic" or "Front Mic".

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