Nathan Allworth wrote:
> Hi I recently setup sound card in alsa on fedora core
> 1, however it only outputs to my front two speakers
> I've been playing around a checking out different sites and one
> suggested that I can setup two sound cards to be multi channel.
>
> pcm.multi {
> type multi;
> ...
> }
>
> pcm.ttable {
> type route;
> slave.pcm "multi";
> ttable.0.0 1;
> ttable.1.1 1;
> ttable.2.2 1;
> ttable.3.3 1;
> ttable.4.4 1; #subwoofer
> }
>
> So I used alsaplayer to test it, here's what it spit
> out. I recieve the same BS with "-d ttable".
>
> $ alsaplayer -d multi
> error on set_channels (2)
> Unavailable hw params:
> CHANNELS: 5
Your 'ttable' device has 5 channels.
To get 2 channels, use a different routing:
pcm.stereo_to_5 {
type route
slave.pcm multi
ttable.0.0 1 # L -> front L
ttable.1.1 1 # R -> front R
ttable.0.2 1 # L -> rear L
ttable.1.3 1 # R -> rear R
ttable.0.4 0.5 # L -> 50% LFE
ttable.1.4 0.5 # R -> 50% LFE
}
> When only executing alsaplayer without first passing any terminal
> arguements it defaults to whatever is default (duh! :P )
The default device happens to be named "default". :-)
You can redefine its default definition like this:
pcm.!default = pcm.stereo_to_5
HTH
Clemens
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