mediacenter .asoundrc

pcm.dmix51 {
type dmix
ipc_key 1024
ipc_key_add_uid false
ipc_perm 0666
slave {
pcm "hw:0,0"
channels 6
period_time 0
period_size 1024
buffer_size 8192
rate 48000
}
}

ctl.dmix51 {
type hw
card 0
}

pcm.stereo {
type plug
slave.pcm "dmix51"
ttable.0.0 1
ttable.1.1 1
}

pcm.!default {
type route
slave.pcm "dmix51"
slave.channels 6
ttable.0.0 1
ttable.1.1 1
ttable.4.2 1
ttable.3.1 1
ttable.2.0 1
ttable.5.5 1
}

pcm.duplicate {
type plug
slave.pcm "dmix51"
slave.channels 6
route_policy duplicate
}

pcm.test {
type softvol
slave {
pcm surround71
}
control {
name "SoftVol"
card 0
}
}

#upmixing:
pcm.ch51dup {
type route
slave.pcm test
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
}