pcm.!default {
    @func refer
    name { @func concat
           strings [ "pcm."
                     { @func getenv
                       vars [ ALSA_DEFAULT_PCM ]
                       default "card 0"
                     }
           ]
         }
}
ctl.!default {
    @func refer
    name { @func concat
           strings [ "ctl."
                     { @func getenv
                       vars [ ALSA_DEFAULT_CTL
                              ALSA_DEFAULT_PCM
                       ]
                       default "card 0"
                     }
           ]
         }  
}

#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
#        }