[PlanetCCRMA] stream

Juan Reyes juanig@ccrma.Stanford.EDU
Tue Feb 25 16:35:02 2003

On the bash shell and using  the asoundrc file in the Alsa website I use 
the following command:

SNDLIB_ALSA_DEVICE="q4" sndplay test4ch.snd

I guess you can use the same command straight  with snd.

The Quattro should output four discrete channels and MIDI as well through 

Make  sure you have the ~/.asoundrc in your home directory.

  --* Juan

On 25 Feb 2003, Fernando Pablo Lopez-Lezcano wrote:

> > Hey Nando,
> >   On my Quattro I'm getting sound on 2 channels, but seemingly not 4.  
> > record still only gives me options for 2 channels and my /proc/asound/card0 
> > gives:
> > 
> > id  midi0  pcm0c  pcm0p  pcm1c  pcm1p  stream0  stream1
> > 
> > What are the 'streams?' 
> No idea :-)
> > I looked at them and it seems that they list 4 in's and
> > out's at 44.1k and only 2 at 96k, which is the way it's supposed to be. 
> > Notice that I only have two capture and two pcm playback above.
> I see you have the asoundrc file that is included in the examples in the
> alsa project web site (in the sound card matrix). Did you put that in
> your ~/.asoundrc file?
> To get four channels going you have to use the devices for four channels
> as listed in in the file. For example:
>   aplay --device quattro whatever...
> would use the "quattro" device (instead of "default" which would
> normally point to "hw:0"). With one of the devices (can't remember
> which) I was able to start jack in four channel playback mode (this was
> a while ago). 
> -- Fernando
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