Bug#717897: pulseaudio: Microphone does not work in Skype

[Felipe Sateler]

Control: severity -1 normal

Hi Pavel

On Fri, Jul 26, 2013 at 12:27:00PM +0400, Pavel Fedin wrote:
> Package: pulseaudio
> Version: 2.0-6.1
> Severity: important
> 
>  Hello!
> 
>  I have installed Wheezy on my AspireOne and got infamous "microphone does not
> work" problem.
>  I have already looked up some other's experience on the Internet. But none
> helped:
>  1. GNOME sound recorder - works fine.
>  2. PulseAudio volume meter - works fine, i see microphone input.
>  3. PulseAudio volume control - works as described on the Internet. Its own
> volume meter shows microphone input only if i set different volume on channels,
> and only when some app is actualy consuming the input (e. g. volume meter is
> running).
>  4. Skype-specific settings in volume control (which appear on 'Recording' tab
> while Skype is actually using the microphone) are OK, input set to 'Built-in
> analog stereo', not to 'Monitor'. By the way, for testing i tried setting it to
> 'Monitor' and feed in some MP3. Skype test call reproduces the sound correctly
> in this case.
>  I have a suggestion that the problem occurs because Skype requests mono stream
> (there is only one volume regulator for Skype's stream in puavcontrol). For
> example, when Volume Monitor is run, it requests stereo stream, and i see two
> regulators for L and R channels on 'Recording' tab. Perhaps it has the same
> origin as non-working volume gauge when both mic channels are set to the same
> level.
> 

This suggests that the problem is in Skype and not in pulseaudio.

Please try running `parecord test.wav` and speaking into the microphone.
If that works, then the problem is with Skype and not pulseaudio, so not
much we can do.


-- 
Saludos,
Felipe Sateler