pcm.!default {
        type plug
        slave.pcm "dmixer"
}

pcm.dmixer  {
 type dmix
 ipc_key 1024
 slave {
  pcm "hw:0,0"
  period_time 0
  period_size 1024
  buffer_size 4096
  rate 44100
 }
bindings {
 0 0
 1 1
 }
}

ctl.!default { type hw card 0 }