Re: [gentoo-user] Can't get any microphone to work

[Ezequiel Garcia <elezegarcia@gmail.com>]

On Tue, Jun 12, 2012 at 6:33 PM,  <v_2e@ukr.net> wrote:
>  Hello!
>
> On Tue, 12 Jun 2012 12:32:43 -0300
> Ezequiel Garcia <elezegarcia@gmail.com> wrote:
>
>> Damn!
>>
>> I've been all morning struggling with this.
>> I have an analog microphone wired to my hda intel onboard sound card.
>> Also, I have a genius webcam (gspca_pac7302) with a builtin mic.
>>
>> I tried arecord but couldn't capture anything from any of it, so I
>> guess I'm doing something wrong. But what?
>> ...
>  My personal experience shows me that most of the time all the
> "silence in mic" is because of the muted (or very too quiet) or wrong
> selected recording device.
>
>  I prefer to check this in 'alsamixer'. If you have several
> microphones on your PC, there should be a possibility to choose the
> device to record the sound from (on my system there are 'Line',
> 'Internal Mic' and 'Mic' options).
>
>  If you choose a correct device, then check if it is not muted as well
> (a symbol 'M' in Alsamixer means 'muted').
>
>  If the device you need is un-muted, then raise the volume level (or
> maybe 'Mic Boost' as well).
>

This was exactly the case. Some alsamixer tweaking was needed.

Strangely, I needed to change "Channel mode" from "6 ch" to "2 ch" for
my intel-hda soundcard.

I still can't get the webcam mic to work.... :-(

Thanks a lot!