pcm.dmixed {
    type dmix
    ipc_key 1234
    slave {
         pcm "hw:0"
         buffer_size 8192
         period_size 2048
         #periods 128
         period_time 0
         buffer_time 0
         rate 44100
    }
}


pcm.softvol {
    type softvol
    slave {
          pcm      "dmixed"
    }
    control {
          name     "Master"
          card 0
    }
}

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

pcm.dsp0 {
    type plug
    slave {
          pcm "hw:0"
    }
}

ctl.dsp0 {
    type plug
    slave.pcm "hw:0"
}

ctl.mixer0 {
    type plug
    slave.pcm "hw:0"
}