toslink AND HDMI

I am trying to get sound on both HDMI & SPDIF from XBMC.

Below .asoundrc file almost works perfectly problem is that there a time delay between the channels. The problem could be the TV though, I also get an echo if I connect the TV to the receiver...

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

pcm.both {
type route
slave {
pcm multi
channels 4
}
ttable.0.0 1.0
ttable.1.1 1.0
ttable.0.2 1.0
ttable.1.3 1.0
}

pcm.multi {
type multi
slaves.a {
pcm "tv"
channels 2
}
slaves.b {
pcm "receiver"
channels 2
}
bindings.0.slave a
bindings.0.channel 0
bindings.1.slave a
bindings.1.channel 1
bindings.2.slave b
bindings.2.channel 0
bindings.3.slave b
bindings.3.channel 1
}

pcm.tv {
type hw
card 0
device 3
channels 2
}

pcm.receiver {
type hw
card 0
device 1
channels 2
}

Audio Out: Digital

Dolby D. (AC3): false

DTS: True

Audio output: plug:both

Passthrough: iec958