Mkv+ flac 7.1

[onyxx1995]

Wow...how did you get that?Can i get 5.1 out on digital output?please,what settings?...Thanks!

[futeko.com]

It would appear to be a bug.

7.1 FLAC in MKV works when there is more than one audio track, but not when it's on its own.

[Phil181]

@onyxx1995,@Phil181...
Add a 2nd audio track, and let as to know if FLAC 7.1 is passthrough Multi Ch 7.1

I grabbed a sample TrueHD 7.1 file of my own (from The Art of Flight) and used mkv AudioConverter to convert to 7.1 FLAC. 
MediaInfo confirmed it was 7.1 FLAC audio in the file.

On my system, the Q10 Pro only passed through audio as 2.0 PCM.
I checked with my trusty old WD TV StreamingMediaPlayer (which is still running side-by-side).  It passed the 7.1 FLAC audio with no problems using the same mkv file!!

I re-tested my own FLAC 5.1 192KHz tracks extracted from Pure Audio Blu-ray (Beck's Sea Change) and they passed through perfectly fine as 5.1 as before.

I then extracted the 7.1 FLAC audio track (using MKVExtract GUI2) and remuxed back into the original clip with 7.1 TrueHD.  i.e. ended up with an mkv with 2x 7.1 audio tracks (as requested by @pcristi).

VERY STRANGE!  Both 7.1 audio tracks (FLAC and TrueHD) now pass through as 7.1 using Q10 Pro Media Center and switching between tracks with the remote.