@ppq I've actually been able to determine what the issue was. The speech- dispatcher package is the one causing issues. It is possible to uninstall it from any Ubuntu installation (or Ubuntu-based distros). But to make sure that indeed this is what is causing the issue in your case, try to run this command on your Terminal:
speech-dispatcher -K And check if the crackling noise will go away. If it does, uninstall it using apt: sudo apt remove speech-dispatcher (or replace remove with autoremove if you want to also uninstall any packages related to speech-dispatcher). It seems that this package will stop behaving correctly after some time with the system running, and will interfere with everything that pulseaudio will output. ** Also affects: speech-dispatcher (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1931902 Title: [AMD Ellesmere] Crackling sound on Pulseaudio To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1931902/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs