But I can change this with dmix, I hear?
Yeah, in a way. Alsa is supposeed to support dmix by default from 1.0.9 onwards but I've had mixed results. Archie (a live CD) does, no touching dmix works. My local Arch install, no love. I finally got it working with this in my ~/.asoundrc
ipc_key 1024 # must be unique!
ipc_perm 0660 # sound for everybody (at least in your group)
pcm "hw:0,0" # you cannot use a "plug" device here, darn.
period_size 1024 # must be power of 2
buffer_size 8192 # dito. It
#periods 128 # dito.
#rate 8000 # with rate 8000 you *will* hear,
# if ossmix is used :)
# bindings are cool. This says, that only the first
# two channels are to be used by dmix, which is enough for
# (most) oss apps and also lets multichannel chios work
# much faster:
0 0 # from 0 => to 0
1 1 # from 1 => to 1
slave.pcm "ossmix" # use our new PCM here
# mixer0 like above
Try your luck, the Alsa web site has a large DB of sound cards and some good info on each one