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OSS and dmix

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Using OSS and Dmix

Something I (and I imagine others) have wanted to do for a while is listen to XMMS whilst playing Unreal Tournament. I have now found this possible using aoss and the dmix plugin.

My setup is:

Debian Etch (worked with Sarge too)
ALSA 1.0.10-1  (worked with previous versions)
Nforce2 Onboard sound

Firstly, I created the .asoundrc file:


#default control device is my card 
#(as it does anyway, without .asoundrc)
ctl.!default {
  type hw
  card 0

pcm.dmixer  {             #this virtual device does the mixing of 
  type dmix               #the various signals
  ipc_key 1024
  slave {
    pcm "hw:0,0"
    period_time 0
    period_size 1024
    buffer_size 4096
    rate 44100
  bindings {
    0 0
    1 1

pcm.!default {             #this means that applications use the mixer
  type plug                #by default, so you can hear everything
  slave.pcm "dmixer"

then I invoked unreal with

aoss ut2004

et voila, it worked :)

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Category: OSS