Created attachment 916543 [details, diff] qpaeq-16.1-pyqt6.patch It *may* be not that difficult to port it. For reference, see porting commit to PyQt5: https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/commit/480e0e74f43565d7ece72141666961ae8cc2ed75 Based on that, attaching a simple s/qt5/qt6/I style patch, completely untested for lack of pulseaudio-daemon installed.
Patch looks reasonable though I have neither qpaeq nor pulseaudio daemon, so I also can't test it. I didn't even remember that I did Qt4->Qt5 port...