Re: JACK and ALSA with a 7.1 multi-channel PCI sound card

> From: Torsten Krieger <KriegerMIS@...>
> Subject: [Jack-Devel] JACK and ALSA with a 7.1 multi-channel PCI sound card
> To: jack-devel@...
> Date: Wednesday, June 17, 2009, 6:13 PM
> Hi folks,
>
> maybe this is not the rigt list to post but the
> documentation at the web is missing about this issue and i
> realy need help!
>
> I try to get JACK and ALSA working with a 7.1 multi-channel
> PCI sound card (C-Media CMI8768). With "aplay -Dcard1
> test.wav" i can play a sound directly to the PCI card, so in
> principal the HW is working. With "aplay -Djackplug
> test.wav" the sound will be played only to both channels of
> the onboard sound card (I can connect and disconnect with
> "QJackCtl" so it's realy playing via JACK).
> Here is my "/etc/asound.conf"
> # Card 1
> pcm.card1 {
>     type hw
>     card 1
> }
> ctl.card1 {
>     type hw       
>    
>     card 1
> }
> # Jack
> pcm.jackplug {
>     type plug
>     slave {pcm "jack" }
> }
> pcm.jack {
>     type jack
>     playback_ports {   
>    
>         0
> alsa_pcm:playback_1
>         1
> alsa_pcm:playback_2
>     }
>     capture_ports {
>         0 alsa_pcm:capture_1
>         1 alsa_pcm:capture_2
>     }
> }
>
> I have extended "playback_ports" to
>     playback_ports {   
>    
>         0
> alsa_pcm:playback_1
>         1
> alsa_pcm:playback_2
>                 2
> card1:1
>     }
> but it's not working, maybe a bit to naiv :-(
>
> How can ALSA an JACK be setup to make use of all the
> channels of the PCI card e.g. with "QJackCtl"?
>
> Anyone have any ideas?
>
> Many thanks in advance,
> Torsten
>
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