[ix400]

@ix400 - had a look through the log (thanks for that) and noticed one big issue:

Code:

08:44:33 T:2940   DEBUG: Error: Requested setting (pvrplayback.signalquality) was not found.  It must be case-sensitive
08:44:36 T:2200   DEBUG: Previous line repeats 90 times.

The log is full of it. It was a bug in the Aeon skin where it was compiled with pvr-enabled, and when it can't find the pvr it spams the log with a ton of error messages. This ties up all kinds of CPU cycles and can easily cause playback glitches like you're seeing on high-bitrate files. Not related to AE, but will affect it big-time.

See here:
http://forum.xbmc.org/showthread.php?tid=114383

I'd start by eliminating that. Try a different skin and if that doesn't help you'll have to do a clean install unfortunately. Once that issue is gone you should see much better results overall. For the buffer value i'd recommend anywhere from 50msec to 100msec as a starting range (I may have to change that default value), but you need to eliminate that pvr spam bug or you just won't get any performance out of 1080p and DTS-MA with it stealing CPU time.

Thanks for having a look.

I did a fresh install of your latest build and used the default skin. I also disabled the video sync feature. However, I still observe the permanent switching between PCM and DTS-HD, and I get no sound. Playing around with the buffer setting seems to influence the frequency of the switching in the display of my receiver.

Here's a log with a setting of 100ms buffer size:

http://db.tt/Ypd2LPgW

Funny thing is that the whole HD-audio business is working with DanielA's non-AE HD-audio build. Even with the erroneous skin and the sync feature enabled.

Any ideas? Let me know if I can do some further testings.

Chris