(2020-12-31, 08:46)fritsch Wrote: Does multi-channel work for no one?
Hi!
While my main goal for today originally was the 4k HEVC test between 8bit and 10bit
(on 1080p SDR TV) with appropriate logs, I read through the last some posts about audio 'problems' and as I just facing myself something same like situation I did my further test on that question circle.
Here are my 'deep'
(never could be deep enough) test reports on this 'topic':
Until now I used just the stable 18.x Kodi from Play Store on my GCGTV but now I installed your 19.x test build. With the 'old' version if I remember correctly there was no DTS-HD option in passhthrough settings, so I was glad when I saw it in the test build. Also until now I just used 'optimized' output type
(never tried the 'best match' and 'fixed' option).
My receiver is
Pioneer - SC-1223 with capability of almost all 'normal' formats except Atmos as the device was released at 2013.
Limitations in short: Atmos; DTX X; only DSD64; no high-res multichannel from network
(but of course capable through HDMI).
One of my reason to start my testings is that when I tried to play one 4 channel 24/96 MLP file
(MLP stream in .MKA container) I got just stereo output nothing more. Of course from network stream I did not expect proper result as the receiver could not handle multichannel high-res streams, but with Kodi the file is directly decoded by Kodi so I absolutely expected 4 channel high-res PCM audio. This was my main reason but have some other interesting things. With DTS XYZ audio streams
(HD MA, HD HRA) I got just got normal DTS results in the past. As I known
(from multiple sources) that GCGTV could not handle high-res audio passthrough I though it was normal.
BUT #1 now!!! with the test build and with DTS-HD passthrough enabled I get DTS-HD HRA on my receiver what I could never yet. This is really glad news for me
(however just in theory as I have no DTS-HD HRA data sources except my test files ).
BUT #2 now, with test build where I got normal DTS results with originally DTS-HD MA audio streams with 'old Kodi' now I getting simply no audio. Thinking-thinking. Ok, I realized that I switched my output config from 'optimized' to 'best match', so check it again:
- With '
best match' I get no audio with only DTS-HD MA streams but get DTS-HD HRA result
(what I could not get in the past) with the corresponding stream
- One interesting thing here: if I tried to play DTS-HD MA audio stream from an only audio file
(from .MKA or directly as a .DTS file) I got normal DTS result. But if the same DTS-HD MA audio stream is in a video file I got no audio. Don't really understand as it seems that there should be some stream identification errors or so.
- With '
optimized' I get normal DTS result with DTS-HD MA streams and get also DTS-HD HRA result
(what I could not get in the past) with the corresponding stream
After the above also tried the same with 'Android output layer'
(or whatever it's name) instead of 'Kodi output layer'. With this config I get normal DTS results with any type of DTS-HD audio streams. Could not get DTS-HD MA, or DTS-HD HRA. The result is something like I got with 'old Kodi'.
At this point I was happy as I could get DTS-HD HRA what I simply could not in the past, but not yet DTS-HD MA
(although never got).
Let's check the other formats mainly what was my main reason. With my 4 channel 24/96 MLP audio stream
(enclosured into .MKA container) I just get also stereo results so there is no changes compared to 'old Kodi'. This is interesting for me.
At this point - as I thought the reason of the problem could be the MLP stream itself - I downloaded some sample high-res multichannel FLAC files, to check the results. With the test build I simply could not get any sound with 24/96 5.1 FLAC files
. There is no problem with the stereo files, 384kHz still fine but just if only 2 channel. So:
-
Mulichannel 24/96 MLP give just stereo sound
-
while multichannel 24/96 FLAC give me no sound.
All these last tests made with 'best match' output settings.
With 'fixed' output settings I get simply no sound. Never. With any type of settings. I don't know why.