[pulseaudio-discuss] Mute mic output keeping its input working
david.henningsson at canonical.com
Mon Jul 4 05:34:37 PDT 2011
On 2011-07-04 14:04, Marcos Felipe Rasia de Mello wrote:
> 2011/7/4 David Henningsson<david.henningsson at canonical.com>:
>> This should be the default.
>> It is probably a matter of your sound card being old (and unknown) rather
>> than a general problem.
>> Could you supply an alsa-info (wiki.ubuntu.com/Audio/AlsaInfo) to tell us a
>> little more about your hardware?
> Thank you, David, for the information.
> alsa-info.sh output attached.
> What I've tried so far:
> 1 - enable mic bost (very important!) using "alsamixer -c 0", because
> there's no switch that controls that in Gnome volume control.
> 2 - pactl set-source-mute
> alsa_output.pci-0000_03_05.0.analog-stereo.monitor 1 (didn't help)
Well, it seems that there is something wrong with the ALSA driver,
because you have correctly set the "Mic" volume (in the below,
"Playback" is correctly set to "off" and "Capture" to "on". That should
have been enough to prevent feedback IMO. I'm not an AC'97 expert though.
Simple mixer control 'Mic',0
Capabilities: pvolume pvolume-joined pswitch pswitch-joined cswitch
Capture exclusive group: 0
Playback channels: Mono
Capture channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono: Playback 0 [0%] [-34.50dB] [off]
Front Left: Capture [on]
Front Right: Capture [on]
David Henningsson, Canonical Ltd.
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