[linux-audio-user] 4 outputs with sblive! + jack?

[Joern Nettingsmeier]

> 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".