Re: [GnomeMeeting-list] Select custom alsa pcm device?

[Damien Sandras <dsandras seconix com>]

Hi,

Le dimanche 30 avril 2006 à 15:14 +0200, Gilles Schintgen a écrit :
> Hi,
> 
> I'd like to know if it's possible to choose a custom alsa pcm device. The GUI 
> only offers "default" and "VIA 8237". However, I'd like to choose the 
> "headset" pcm device which I've defined in my .asoundrc.
> 

If you defined "headset" as DEFAULT it can be used. However, ALSA
doesn't provide an API to retrieve the list of custom devices defined
in .asoundrc.

> I'm using a simple headset with two stereo connectors. The headphone jack is 
> plugged in the rear channel of my 5.1 onboard sound device. Since I'd like to 
> use the front and rear channel independently I had to resort to 
> this .asoundrc:
> 
> pcm.rearx {
>         type route
>         slave.pcm "surround40"
>         ttable.0.0 0
>         ttable.1.1 0
>         ttable.0.2 1
>         ttable.1.3 1
> }
> pcm.!rear {
>         type plug
>         slave.pcm "rearx"
>         slave.channels 4
>         ttable.0.0 1
>         ttable.1.1 1
> }
> ctl.rear {
>         type hw
>         card 0
> }
> pcm.headset {
>         type asym
>         playback.pcm "rear"
>         capture.pcm "hw:0"
> }
> 
> As far as I can tell everything works as expected, i.e. the "headset" pcm 
> device is completely independent of normal sound playback (e.g. sound 
> notifications, music, etc.). The only problem is that I can't find an option 
> in ekiga to use this device.
> 
> Would it be difficult, from a technical point of view, to implement support 
> for these "virtual" pcm devices? Or is there already a hidden option in a 
> configuration file somewhere?

-- 
 _      Damien Sandras
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