Subject: Re: [linux-audio-user] 4 outputs with sblive! + jack?
From: Joern Nettingsmeier (nettings_AT_folkwang-hochschule.de)
Date: Mon May 17 2004 - 18:24:20 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?
not at my home box atm, but iirc it's "surround".
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