Why do they even include settings by default which introduce crackling and hissing noises?
I found that even starting with resample.quality = 7 I couldn’t hear any difference, younger people (like teenagers) might be able to distinguish 8-9. Maybe use 8 as a default value?
What do you need to do with paprefs? I found that other Pulseaudio related software works pretty well if you have pipewire-pulse installed, e.g. PulseMeeter.
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Use PulseMeeter, you can do a simultaneous output with it. It’s basically the Linux version of the VoiceMeeter Banana program for Windows.
FWIW, I get the same error, in text form for discoverability via search engine:
(paprefs:68653): GLib-GIO-ERROR **: 07:28:23.188: Settings schema 'org.freedesktop.pulseaudio.module-group' is not installed [1] 68653 trace trap (core dumped) paprefsdeleted by creator