Re: [gentoo-laptop] Problems when more than one application uses sound

[Marcus Priesch <marcus@priesch.priv.at>]

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hi Erick,

here you are!

c1 to c4 are the four independent channels, the soundcard has two
subdevices (0 and 0,1 for the "front" and "rear" output) ...

greets & have fun hacking alsa ;)
mexx.

On Thu, 2006-06-01 at 15:41 +0200, Erick M wrote:
> hi Marcus,
> 
> would you mind showing us the content of your /etc/asoundrc?
> I am quite interested by the subject.
> 
> Thanks for your time and comprehension
> 
> Best Regards,
> 
> Erick
> 
> On 6/1/06, Marcus Priesch <marcus@priesch.priv.at> wrote:
>         Hi,
>         
>         ALSA sould be capable of this - for me it just works with
>         recent drivers
>         (2.6.12++) - also remember that you can uses alsa's
>         ~/.asoundrc to
>         define software mixers and virtual soundcards - there is an
>         example for 
>         a SW mixer on the alsa home page - try looking for
>         the .asoundrc
>         documentation ...
>         
>         note that i managed to create 4 virtual mono (stereo mixed
>         together)
>         soundcards using one terratec 5.1 pci card with a special
>         hand 
>         crafted .asoundrc (in my case it was /etc/asoundrc, as it was
>         for the
>         complete system)
>         
>         just my2c & good luck,
>         mexx.
>         
>         
>         --
>         gentoo-laptop@gentoo.org mailing list
>         
> 

[-- Attachment #2: asound.conf --]
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pcm.dmix1 {
    type dmix
    ipc_key 12
    ipc_key_add_uid false
    ipc_perm 0666
    slave {
        pcm "hw:0"
        rate 44100
        period_time 0
        period_size 1024
        buffer_size 8192
        channels 2
    }
    bindings {
        0 0
        1 1
    }
}

pcm.dmix2 {
    type dmix
    ipc_key 1234
    ipc_key_add_uid false
    ipc_perm 0666
    slave {
        pcm "hw:0,1"
        rate 44100
        period_time 0
        period_size 1024
        buffer_size 8192
        channels 2
    }
    bindings {
        0 0
        1 1
    }
}

pcm.c1 {
    type plug
    slave {
        pcm "dmix1"
        channels 2
    }
    ttable.0.0 0.5
    ttable.1.0 0.5
}

pcm.c2 {
    type plug
    slave {
        pcm "dmix1"
        channels 2
    }
    ttable.0.1 0.5
    ttable.1.1 0.5
}

pcm.c3 {
    type plug
    slave {
        pcm "dmix2"
        channels 2
    }
    ttable.0.0 0.5
    ttable.1.0 0.5
}

pcm.c4 {
    type plug
    slave {
        pcm "dmix2"
        channels 2
    }
    ttable.0.1 0.5
    ttable.1.1 0.5
}