OK. See if this makes sense to anyone. I'm pretty sure that it is an ET bug but...
Currently loaded with 18.104.22.168 and 3.0.3 and my main HTPC runs both on W10 connected to my AVR through HDMI
I was having problems playing back videos with AAC audio... it would play all of the surround through L&R but no center, rear, or sides (although you could hear a little voice, if it echoed in the room they were in).
I first noticed it the other night while trying to watch TWD... audio out. Played directly with MPC-HD... fine.
Checked settings on Windows and 7.1 with the rest of the audio properties looked fine. Played the little tones with no problems.
Checked all my settings in ET/Audio and I have passthrough activated on all and have it setup for 7.1, as well.
Played Big Bang Theory (which has AC3 audio) and the AVR clicked over into Dolby Digital and played perfectly.
As I'm troubleshooting back and forth, going into and out of settings, back to home page, etc., I get a little tired of listening to the theme songs play over and over and go into Settings/Display and disable them.
Now, the problem has corrected itself. Everything plays perfectly. No problems at all.
Thinking the problem fixed itself, I reactivate theme music... L/R only again. I toggle back and forth and, for some reason, Theme Music is jacking up AAC playback.
I try playback through my laptop (with theme music activated)… plays fine.
I go through my settings, activate all the passthroughs, and change the Audio profile to 7.1 (it was set to AUTO as, even though my laptop obviously only has 2 speakers, I sometimes plug in the surround sound headphones)… L/R only.
Go to 5.1... bad. Stereo or Auto... good on the laptop. On the HTPC, everything gets processed through the AVR so most streams get fully expanded no matter what speaker configuration I choose.
So, here's where I'm at with my testing.
I used the following files to test: TWD (AAC 5.1) and GotG2 (AAC 7.1) [NOTE: GotG2 did not have a theme song so I copied TWD theme into it's folder]
Theme/Auto - TWD (5.1) / GotG2 (7.1)
Theme/Stereo- TWD (5.1) / GotG2 (7.1)
Theme/5.1- TWD (L/R) / GotG2 (L/R)
Theme/7.1- TWD (L/R) / GotG2 (L/R)
No Theme/Auto- TWD (5.1) / GotG2 (7.1)
No Theme/Stereo- TWD (5.1) / GotG2 (7.1)
No Theme/5.1- TWD (5.1) / GotG2 (7.1)
No Theme/7.1- TWD (5.1) / GotG2 (7.1)
My conclusions are:
Theme music is, for some reason, bugging my AAC playback, if set up to output in 5.1 or 7.1 BUT ONLY if the folder contains a theme song (before adding the theme to GotG2 folder, everything played perfectly).
Disabling Theme Music or going with Auto (or Stereo) corrects (bypasses) the problem... as does deleting the theme music completely. If it doesn't play, there is no problem.
Somewhere between playing the MP3 and playing the AAC, a problem occurs.
Also of note... this just started happening.