Unable to see sound devices in the settings

I don’t see any sounddevice in gsettings. This applies for input & output devices.
When i try to start

pulseaudio --start
E: [pulseaudio] main.c: Daemon startup failed.

the output of pulseaudio -v is alot longer and visible on fpaste.
You can see here the lines wich are red in the console (732-736):

E: [pulseaudio] module-ladspa-sink.c: Master sink not found.
E: [pulseaudio] module.c: Failed to load module “module-ladspa-sink” (argument: “sink_name=ladspa_output.mbeq_1197.mbeq master= plugin=mbeq_1197 label=mbeq control=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0”): initialization failed.
E: [pulseaudio] main.c: Sink ladspa_output.mbeq_1197.mbeq does not exist.
E: [pulseaudio] main.c: You need to specify a volume >= 0. (0 is muted, 0x10000 is normal volume)
E: [pulseaudio] main.c: Failed to initialize daemon.

The connected sound device is a Sound Blaster Play! 2

Bus 010 Device 003: ID 041e:323d Creative Technology, Ltd Sound Blaster Play! 2

But also “normal” sound devices like my headset in the 3.5mm front slot of my PC does not show up in gsettings.

Using this method from the ask ubuntu forums i was able to solve my problem on fedora 30:

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