Audio Hints, T520?

[Alexander Motin]

On 06.05.2013 15:12, Sean Bruno wrote:
> On Mon, 2013-05-06 at 09:27 +0300, Alexander Motin wrote:
>>   From information provided by Sean I can't see why added quirk for
>> playback may affect recording in any way. More likely I would guess
>> that
>> change from two playback pcm/dsp devices to one, while still having
>> two
>> record ones, made hw.snd.default_unit less usable (because there is
>> no
>> choice of output devices for it any more). Respective two input
>> pcm/dsp
>> device may require to be chosen manually in recording application. Or
>> you can try additional hints to join both mics in one dsp/pcm device,
>> provided by Kevin Oberman:
>> hint.hdac.0.cad0.nid35.config="as=2"
>> hint.hdac.0.cad0.nid27.config="as=2 seq=15"
>
> No success with these settings.  There is no change to my ability to
> record with audacity.

Sorry, on your system hdac.0 is HDMI audio. Try hdac.1 instead.

>> PS: When checking mixer, remember that there is separate mixer for
>> every
>> pcm/dsp device. Sean. you've provided output only for one. I guess
>> that
>> other (internal) microphone is on another pcm device/mixer.
>
> All the mixer settings:
>
> $ mixer -f /dev/mixer2
> Mixer vol      is currently set to  95:95
> Mixer pcm      is currently set to 100:100
> Mixer speaker  is currently set to 100:100
> Mixer mic      is currently set to 100:100
> Mixer rec      is currently set to  67:67
> Recording source: mic
> $ mixer -f /dev/mixer3
> Mixer rec      is currently set to   1:1
> Mixer monitor  is currently set to  42:42
> Recording source: monitor

Here are two pcm devices, one for each mic. Hints from above should join 
them into one. Otherwise ,ake sure that you've tried to record from 
both. And adjust rec volume on second one.

-- 
Alexander Motin