pcm.newsnoop {
   type dsnoop
   ipc_key 1234
   slave {
      pcm "hw:0,0"
   }
}

pcm.copy {
   type plug
   slave {
      pcm "hw:0,0"
   }
   route_policy duplicate
}

pcm.copyfront {
   type plug
   slave {
      pcm front
   }
   route_policy copy
}

pcm.tofile {
   type file
   slave {
      pcm hw
   }
   file /var/tmp/tcp/tfile.raw
}