Hi,
I had the same problem, with randomly mixed up audio channels with 5.1 settings and random stuttering not showing up as dropped or skipped frames, but smooth playback in 2.0 setting. This is a workaround for paththrough signals, but disadvantage is not havving 5.1 upmix for audio files.
Regarding the subtitle stutter, this discussed e.g. in this thread or this thread
It can be removed (at least for me) by adding the following lines to the advancedsettings.xml file:
Code
<gui>
<algorithmdirtyregions>0</algorithmdirtyregions>
<smartredraw>true</smartredraw>
</gui>My question: Did anybody report the audio setting stutter problem related ro rpi4 to kodi/xbmc already? I looked at the issues on the xbmc github, but did not find anything related, so I'm wondering if anyone of the developers is aware?