5.1 Source Media on 2.0 Airplay Output plays wrong channels
I've got a bit of an odd one…
Got some H264 MP4's with AAC audio, 5.1 soundtrack, track order:
Center, Left, Right, Left Surround, Right Surround, LFE
I've not been able to do extensive testing with other devices, but I've noticed when playing audio to AirPort Express (via Airplay), which is a stereo output, my left speaker is not playing the left channel, it's either playing centre or one or the surrounds (there's never any dialogue on it).
What's going on here? Any ideas?