Subject: Re: [linux-audio-user] 4 outputs with sblive! + jack?
From: Russell Hanaghan (hanaghan_AT_starband.net)
Date: Mon May 17 2004 - 17:37:46 EEST
On Mon, 2004-05-17 at 01:00, Joern Nettingsmeier wrote:
> you can use the pre-defined surround40 device, *but* jackd will
> assume it also has 4 input channels and refuse to start, so you have
> to define a new device based on surround40.
>
> add this to your .asoundrc:
>
> ctl.jack42 {
> type hw
> card 0
> }
>
> pcm.jack42 {
> type asym
> playback.pcm {
> # route for mmap workaround
> type route
> slave.pcm surround40
> ttable.0.0 1
> ttable.1.1 1
> ttable.2.2 1
> ttable.3.3 1
> }
> capture.pcm {
> # 2 channels only
> type hw
> card 0
> }
> }
>
>
> then specify "jack42" as your alsa device when starting jackd. works
> like a charm for me.
So when this is running, what controls in alsa mixer are relevant for
the additional channels?
R~
>
>
> robcanning wrote:
> > hi,
> >
> > what is the best way to get 4 independent outputs from an sblive!
> > i am using pd with jack but in qjackctl i only see 2 alsa_pcm playback
> > devices. Is it possible to get 4 outputs using an sblive and jack?
> > if not what's the best approach... alsa? oss?
> > thanks,
> >
> > rob (planetccrma fedora core1)
> >
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