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

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Subject: Re: [linux-audio-user] 4 outputs with sblive! + jack?
From: Joern Nettingsmeier (nettings_AT_folkwang-hochschule.de)
Date: Mon May 17 2004 - 11:00:09 EEST

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.

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)
> 

-- 
Jörn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Germany
http://spunk.dnsalias.org (my server)
http://www.linuxaudiodev.org (Linux Audio Developers)

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