Bradee-oh! wrote:
> First question is - is that normal behavior? It seems that if
> surround51 uses "hw:0,1" and 2 channel stuff uses "hw:0,0", there
> shouldn't be any conflict REGARDLESS of dmix. What's the deal here?
The CMI chip can be used in two modes (stereo or surround), and there
are two devices (hw:X,0 and hw:x,1) for the two modes, but these
devices still access the same resources, so they cannot be used at the
same time.
> And second question - I know that dmix only supports 2 channels.
dmix supports any number of channels.
> However, is there anyway to split the channels of surround51 into 3 sets
> of 2 channels, dmix each set of 2, then recombine the dmixed channels
> into one virtual 6-channel device?
If all what you want is dmixing 6 channels, try something like the
following:
pcm.dmixs51 {
type dmix
ipc_key 1024
slave {
pcm "hw:0,1"
rate 48000
channels 6
period_time 0
period_size 1024
buffer_time 0
buffer_size 4096
}
}
HTH
Clemens
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