Re: [Linphone-users] ALSA devices, selecting

[Simon MORLAT]

Hello,

You seem to be an ALSA expert, surely you have many things to teach to me !
In fact I never understood all this stuff of plughw and so on in alsa.
I've written some code (that'I ve mostly taken from examples on 
alsa-howto), and hopefully it mostly works.
I wasn't aware that asoundlib was able to mix several streams together. 
Is it also possible when mixing sounds that have different sampling rates?
One thing I can do quite easily is to start a specific command instead 
of directly playing the sound.
The ring_start() function of linphone would then fork a process, and 
restart it once it exits, and then kill it when ring_stop() is called.
With this you would be able to set the forked command to "artsplay 
mymusic.wav" or "aplay mymusic.wav" or whatever you want.
Perhaps you have other suggestions.
I'm waiting for your answer.
Thanks,
Simon

William Pettersson wrote:

> I've gotten linphone running just fine under debian, with the ALSA
> drivers.  However, I had wanted linphone to play a ringtone even if I'm
> using the sound device anyway.  I've set up my soundcard so that this is
> possible, using dmix in my .asoundrc file to define a new default
> device.  From this, I can now have xmms playing a song, and running
> 'aplay /usr/share/sounds/linphone/rings/orig.wav' successfully plays the
> ringtone on top of my currently playing music.  However, linphone seems
> to ask for the plughw device for the ALSA device.  This would be normal
> for the actual communication, maybe, as it might require direct access
> for real time full duplex audio operation.  But is it possible to select
> a different ALSA device from the one soundcard, to have many sounds at
> once playable?
>
> Thanks
> William
>  
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Linphone-users mailing list
> address@hidden
> http://mail.nongnu.org/mailman/listinfo/linphone-users
>