On Wed, Dec 01, 2010 at 08:30:03PM +0100, Jiri B. wrote:
quoted text
> Hi,
> 
> on Lenovo T400 laptop there's internal mic (works on other OS).
> 
> Unfortunatelly I'm stupid or it doesn't work :/
> 
> I tried:
> 
> * aucat -o /tmp/file.wav
> * aucat -C0:1 -o /tmp/file.wav
> * aucat -C2:3 -o /tmp/file.wav
> * audacity record
> 
> (not really sure why '-CX:X'...)
> 
> It produces just same noise all the time...
> 
> I'm confused, I read FAQ but I don't have any record.source or
> input.mic.source.
> 
> jirib
> 
> inputs.dac-0:1=141,141
> inputs.dac-2:3=141,141
> inputs.beep=85
> record.adc-2:3_source=mic2
> record.adc-2:3=240,240
> record.adc-0:1_source=mic
> record.adc-0:1=240,240
> outputs.hp_source=dac-0:1
> outputs.hp_boost=off
> inputs.mic=252,252
> outputs.mic_dir=input-vr80
> outputs.spkr_source=dac-2:3
> outputs.spkr_eapd=on
> inputs.mic2=252,252
> outputs.hp_sense=unplugged
> outputs.mic_sense=unplugged
> outputs.master=143,143
> outputs.master.mute=off
> outputs.master.slaves=dac-0:1,dac-2:3
> record.volume=255,255
> record.volume.mute=off
> record.volume.slaves=adc-2:3,adc-0:1

this is one of those stupid codecs that has hardwired connections
between ADCs and the mics.  Lenovo and Dell use these.  stupid
vendors.

you can do this:

$ aucat -l -s default -c 0:1 -C 0:1 -s internal -c 2:3 -C 2:3

that gives you two sub-devices, "default", and "internal".  you
can then specify which device to use with the AUDIODEVICE environment
variable.  "default" is the default device if not specified.  so,

$ aucat -o junk.wav
$ aucat -i junk.wav

will record from the external mic (record.adc-0:1_source=mic)
and play it on the headphones (outputs.hp_source=dac-0:1), while

$ AUDIODEVICE=internal aucat -o junk.wav
$ AUDIODEVICE=internal aucat -i junk.wav

will record from the internal mic (record.adc-2:3_source=mic2) and
play it back on the speaker (outputs.spkr_source=dac-2:3).

and I know mic2 is the internal speaker because there is a 
'mic_sense' control, which means 'mic' is a jack.

I'm working on making mic switching automatic when a mic jack is
plugged/unplugged, but there are still some issues to be worked out.

-- 
jakemsr@sdf.lonestar.org
SDF Public Access UNIX System - http://sdf.lonestar.org