jdpc patrickkfkan Here is another test update with this fix:
jernej, just tested this on my OrangePi Lite. The audio issue is not fixed. For now, setting the sampling rate to 44.1Khz seems be working okay, except for the occasional audio glitches which sometimes occur during playback.
Display Morejernej I've been testing the build more thoroughly and I've found some interesting things and a workaround to fix the sound issues.
The first thing I tested is playing a video at 1080p 60 Hz. As always, the problem is still there, even with the interface sounds. But then I decided to try at 1080p 30 Hz. I played a YouTube video and found the sound issue to be completely gone, but when trying with a movie the sound started to cut off again. This was already reported by other users. When tweaking the sound settings, I found the culplit: when limiting the audio sampling rate from 48 kHz to 44.1 kHz, the problem is completely gone for every video. That's why YouTube was working before, because its audio sampling is 44.1 kHz.
The rest of the audio settings doesn't seem to affect anything. I then tried 1080p 60 Hz with the audio sampling limited to 44.1 Hz, but the audio cuts off again. So to sum up, I think there are actually two different sound issues:
- When using 1080p 50 or 60 Hz
- When sending a sampling rate of 48 kHz or more
Maybe this information helps you solve the problem. For now, I can use 1080p 23.98 Hz and 44.1 kHz to watch movies. patrickkfkan shahidali55 you could try this too, maybe limiting the sampling rate also works at 60 Hz on your TVs.
Setting the audio sampling rate to fixed 44.1khz has resolved the HDMI audio issue completely (short audio blips every few seconds, but it recovers). Tested on OPi lite compiled from master (9d68e4b) with wifi driver enabled. Thanks jdpc for this find and jernej for the continuous development effort on LibreElec.
shahidali55 jdpc I added one additional fix for HDMI audio, maybe it will help, please test (H3 update): libreelec-h3.arm-9.80-devel-20190903205119-128937b.tar
Thanks jernej. Just tested this update, still the same as before with HDMI audio.
shahidali55, roel and others with HDMI audio issues. Please test this universal H3 update file if it changes anything:
libreelec-h3.arm-9.80-devel-20190829200008-9d68e4b.tar
This is for any H3 board, just put it in /storage/.update and reboot.
If anyone wants to do a custom build, this update includes only one additional patch, which should improve situation for A64 and H6 too:
drm: dw-hdmi-i2s: enable audio clock in audio_startup - Patchwork
Thanks for the update package jernej, but the audio issue is not fixed on the Orange Pi Lite. Files which worked, still work, others (particularly with aac audio) still do not work.
jernej , HDMI Audio working on OrangePi Lite (master - commit 9d68e4b). But there is a catch. After system reboot, first play any mp3 file. After that all mp4 and mkv files play with clear audio and video over HDMI. Tested this with the wifi patch for OPi Lite. System is stable.
UPDATE: Tried a system reboot, could not get it to play the mp4 and mkv files again (only video, no audio over HDMI).
Compiling Libreelec for OrangePi lite with kernel 5.1.2. Will report back if the audio issue changes with 5.1.2
No HDMI audio on 5.1.2 as well . . . Again, HDMI audio works in the YouTube add on.
Regarding the HDMI issue: I build Manjaro arm for my pine64+ and have the same issue there, no sound through hdmi. Analogue works just fine. Manjaro is running on linux kernel 5.2.
Lakka doesn't have sound either trough hdmi but analogue is OK. I don't know about armbian but armbian is on 4.9.
Compiling Libreelec for OrangePi lite with kernel 5.1.2. Will report back if the audio issue changes with 5.1.2
It is strange that audio over HDMI works perfectly in the YouTube add on. Maybe this can be a hint on how to fix HDMI audio issue ?
I've run the build from LibreELEC master for Orange Pi Lite. Followed instructions from this post by jernej. Also, added the Wifi patches from CzosnekDev. Wifi works perfectly after disabling power saving in the RTL8189FTV Makefile. Audio over HDMI only works consistently when using the YouTube add on. Playing files from SMB share brings out crisp video, but no audio. Tried multiple files, no luck (480p, 720p, 1080p - h264,HEVC - mp4,mkv). Strangely, opening Settings -> System brings back audio for 1-2 seconds. The Pi is very stable and fast, free RAM is about 250MB and it never dips below 200MB (monitoring via SSH).
