Are you sure file really is 8 channel? Not all DTS-HD MA files are.
Can you try a file from here: http://www.demo-world.eu/2d-demo-trailers-hd/
and if you have the same problem then post a log and I can compare to what I see.
I’ll do that when I wake-up, but I’m sure they’re since I personally ripped them from my retail Blu-ray discs with mskemkv and made sure to add back the unselected hd audio. Plus I have watched the same files on different players and had the audio with eight channels.
Plus the media info in that log speed it as 8 channel.
thanks for the fast reply
will test tonight and let you know. I’m downloading some files from that url to test.
for now this is the mediainfo from the file that I got no audio with that setting enabled:
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Mode : 16
Format settings, Endianness : Big
Codec ID : A_DTS
Duration : 1h 23mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 902 MiB (10%)
Default : Yes
Forced : No
question: If I connect HDMI cable to a TV that only support this:
osmc@osmc:~$ tvservice -a
PCM supported: Max channels: 2, Max samplerate: 48kHz, Max samplesize 24 bits.
You shouldn’t get silence with “Support 8 channel DTS HD audio decoding” enabled though.
Even with a stereo TV, it should decode 8 channels and downmix to stereo.
If you get silence there is a bug somewhere.
Confirming that you get silence from a file I have access to (e.g. http://www.demo-world.eu/2d-demo-trailers-hd/) and confirming which settings are needed to get the failure (e.g. omxplayer enabled/disabled would be interesting). A debug log from after the failure would be useful.
Both players disabled. Sound OK
Both players enabled. No sound
MMAL only enabled: Sound ok
OMXPlayer only enabled: No sound
I enabled both because the default values (both disabled) cause shutters in my mkv files. OMXplayer play fine and MMAL plays with a little less shutter then both disabled.
I prefer OMXPlayer. IMO plays better. Not for technical reasons just for what I experienced.
What happens when both are enabled? Which one is the preferred one?
When both are enabled, you get omxplayer for most file types, unless there are unsupported features.
If software decode is required, or DVD menus, or ALSA audio or AC3 transcode, then dvdplayer will be used.
So IMHO @sam_nazarko can enable both by default in RPI1 and 2 as both have hardware accelaration. This would avoid “shutter” issues for normal users (those who dont tweak settings)
Or is there a reason for not enabling them by default?