Stuttering sound in Celluloid and Hypnotix on LMDE 6

[Vlasov96]

I recently installed LMDE 6. But after a while, I started noticing that in Hypnotix and Celluloid, the sound started to stutter every few seconds. I tried to upgrade Pipe wire and Wireplumber from backports. I also added the Debian-multimedia repository. Nothing helped, the sound in Celluloid and Hypnotix is still stuttering.

[Bertium]

1. Happens it also on video or only with audio files? Can you make a test with VLC-player?
2. Allways post the system status for the profis here. choose "system-info" and "copy" and "paste" it into the thread.

[MiZoG]

Adding this deb-multimedia repo was a bad call.
There is a long history of breaking apt and creating dependency hell in Debian stable systems.
And it actually makes harder for us to help you in troubleshooting this audio stuttering.
Remove this repo from your software sources, find and uninstall any package with dmo suffix and try revert your system to its previous state.
(Fresh-installing LMDE6 should not be "unthinkable")
After all these, post your system specs: System Information --> System Reports --> Press the "Copy" button on the bottom right side --> Paste here.
This is btw what you should have done in the first place. When unsure about what direction to follow in troubleshooting, it is wise to ask for help earlier than later.

[Hoser Rob]

Adding this deb-multimedia repo was a bad call.
There is a long history of breaking apt and creating dependency hell in Debian stable systems.
And it actually makes harder for us to help you in troubleshooting this audio stuttering.
Remove this repo from your software sources, find and uninstall any package with dmo suffix and try revert your system to its previous state.
(Fresh-installing LMDE6 should not be "unthinkable")
After all these, post your system specs: System Information --> System Reports --> Press the "Copy" button on the bottom right side --> Paste here.
This is btw what you should have done in the first place. When unsure about what direction to follow in troubleshooting, it is wise to ask for help earlier than later.

Actually enabling backports was a much worse thing. Debian Stable is very stable ... it's very unlikely to break itself but it can be broken by the user. It's almost impossible to revert a Debian based install that's been backported back to Stable. The packaging system just isn't designed for it, it's designed to install newer software.

Really, the best thing would be to do a data backup and clean reinstall. And stop messing with it.

[MiZoG]

No way you can compare deb-multimedia to backports.
And backports is enabled OOB in LMDE.