I still habe this in my project todo list: https://github.com/MiczFlor/RPi-Jukebox-RFID

Ahh... that was the reason

Okay, i had to try it today... Unfortunatley, it was set to "PC/Mac" already. I have factory reset the card and tried again. Have you enabled the sbx profile, or do you use direcr sound mode?

Thank you! Will try this tomorrow <3

I wish it would work with pacucontrol, but it dies not give me the external mic Option for the inputs. Alsa does. See my parallel comment.

After some more testing, I think this is indeed the case. The problem is that the device has two input channels ("line-in", " external mic"). In alsamixer i can select both as "PCM capture source" (from here) However, the input tab of pavucontrol, i can only select "line in". I switched through all available profiles for the card. But the dropdown only always show "line-in"

Any ideas?

I could do that, the question is what is the correct config file? I think the .state files are more like snapshots wich are applied to the config when i restore it.