asoundrc

pcm.my_card {
  type hw
  card 0
# mmap_emulation true
}

pcm.dmixed {
  type dmix
  ipc_key 13759
  slave {
    pcm "my_card" 
    rate 48000
    channels 6
   period_size 512
  }
}

pcm.duplicate {
    type route
    slave.pcm "asymed"
    slave.channels 6
    ttable.0.0 1
    ttable.1.1 1
    ttable.0.2 1
    ttable.1.3 1
    ttable.0.4 0.5
    ttable.1.4 0.5
    ttable.0.5 0.5
    ttable.1.5 0.5
}


pcm.dsnooped {
  type dsnoop 
  ipc_key 13758
  slave {
    pcm "my_card" 
   rate 48000
   period_size 128
  }
}

pcm.asymed {
  type asym 
  playback.pcm "dmixed" 
  capture.pcm "dsnooped"
}

pcm.pasymed {
  type plug 
  slave.pcm "asymed"
}

pcm.dsp0 {
  type plug
  slave.pcm "asymed"
}

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