2020-05-07, 17:13
Hi,
sometimes when i watch a movie with ac3 sound all is fine but when i take another movie i get loud noise on my speakers.
Furthermore when i watch a movie with different audio languages and i have this kind of noise problem i can solve the problem when i switch between the audio streams several times.
Thus after second/third time of switching the audio stream all is working fine.
The same problem happen if i watch dvb-t2 tv and i change the audio stream of the tv program.
This happen also when i play an mp3 file with ac3 upmix.
I am running debian linux with kodi/leia connected to an onkyo receiver using toslink/spdif
To solve the problem i have tested a few things:
1. without passthrough all is working fine because no ac3 output
2. sometimes when i kill pusleaudio after whatching a movie with noise problem kodi restarts pulseaudio and the sound works well sometimes doesn't
3. i have used max log level in kodi and compared the logs from different movies with and without noise problem but i could not find real differences
here the log ouput playing a movie getting noise
https://paste.kodi.tv/zutiligufo.kodi
and here the ouput for the same movie without noise where all is working fine
https://paste.kodi.tv/cejezapufe.kodi
i try to debug the kodi sources to find the reason for this.
has someone an idea where to start the debugging?
i think the problem can not be in
CVideoPlayerAudio because there will be only the threads for video, audio streams handled and also not in
the AudioEngine/Sinks/AESinkPULSE.cpp because this is only the wrapper to pulseaudio.
i tried to clear the pulseaudio buffer with pa_stream_flush() but no changes.
i think the problem can be either in AudioEngine/ActiveAE.cpp or in AudioEngine/ActiveAEBuffer.cpp
any ideas?
mod edit - log snippets moved to paste site
sometimes when i watch a movie with ac3 sound all is fine but when i take another movie i get loud noise on my speakers.
Furthermore when i watch a movie with different audio languages and i have this kind of noise problem i can solve the problem when i switch between the audio streams several times.
Thus after second/third time of switching the audio stream all is working fine.
The same problem happen if i watch dvb-t2 tv and i change the audio stream of the tv program.
This happen also when i play an mp3 file with ac3 upmix.
I am running debian linux with kodi/leia connected to an onkyo receiver using toslink/spdif
To solve the problem i have tested a few things:
1. without passthrough all is working fine because no ac3 output
2. sometimes when i kill pusleaudio after whatching a movie with noise problem kodi restarts pulseaudio and the sound works well sometimes doesn't
3. i have used max log level in kodi and compared the logs from different movies with and without noise problem but i could not find real differences
here the log ouput playing a movie getting noise
https://paste.kodi.tv/zutiligufo.kodi
and here the ouput for the same movie without noise where all is working fine
https://paste.kodi.tv/cejezapufe.kodi
i try to debug the kodi sources to find the reason for this.
has someone an idea where to start the debugging?
i think the problem can not be in
CVideoPlayerAudio because there will be only the threads for video, audio streams handled and also not in
the AudioEngine/Sinks/AESinkPULSE.cpp because this is only the wrapper to pulseaudio.
i tried to clear the pulseaudio buffer with pa_stream_flush() but no changes.
i think the problem can be either in AudioEngine/ActiveAE.cpp or in AudioEngine/ActiveAEBuffer.cpp
any ideas?
mod edit - log snippets moved to paste site
