CarlitoSyrichtaHi Carlito,
Out Of Your Head does not do any decoding. The decoding and/or conversion is done by your media player application. If you media player can process 6ch AAC and output it as 5.1, then Out Of Your Head will receive the 5.1 audio and play it back through the 5.1 virtual speakers.
I hope that makes sense.
-Darin