[tuxen]

@tuxen - you mean testing on the PI or another platform?

Yeah I meant try it on the pi in relation to the dvdplayer issue that is if you have the time and all.
I just meant I've seen this setting influence some of the things popcornmix explained on another platform, so I was curious.

Didn't have any effect and would have been surprised if it did because I'm using passthrough

Actually it does seem to have something to do with passthrough but only if we use pulse audio? I'm a little confused after reading this:
Quote "
ActiveAE has three build-in profiles: Best Match, Optimized and Fixed.
Fixed takes care that all audio you will play is play in the very same data format. Your receiver does not need to switch modes.
Best Match is what previously existed as the "audiophile" mode. Whenever a new video or music playback starts, the audio engine will select the best sink for that stream.
Optimized is something special, as it tries to reduce the reopening of sinks a lot. One example is live-TV where it switches between 5.1 to 2.0 during commercials. In order to not open the device anew and loosing some (milliseconds of) audio, the 2.0 commercials are played with the already open 5.1 sink by muting the non existent channels."

Does it apply to "normal" PCM output streams? Or only in pulseaudio..

http://wiki.xbmc.org/index.php?title=Aud...e#ActiveAE
http://wiki.xbmc.org/index.php?title=PulseAudio