#Can I play stereo files over all speakers of my 4.0, 5.1 or 7.1 surround-sound setup?
#test with: aplay -Dch40dup 2ch-stereo.wav  AND aplay -Dch51dup 2ch-stereo.wav
        pcm.via82xx {
           type hw
           card 0
        }

pcm.ch40dup {
    type route
    slave.pcm surround40
    slave.channels 4
    ttable.0.0 1
    ttable.1.1 1
    ttable.0.2 1
    ttable.1.3 1
}

pcm.ch51dup {
    type route
    slave.pcm surround51
    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
}


        ctl.via82xx {
           type hw
           card 0
        }