pcm.!dmix {
type dmix
ipc_key 1024
ipc_key_add_uid false
ipc_perm 0660
slave {
pcm "hw:0,1"
rate 48000
format "S32_LE"
period_time 0
period_size 1024
buffer_time 0
buffer_size 5120
}
}

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