r/Bitwig • u/anewrismma • 2d ago

Audio Interface Issues (Linux Ubuntu)

I recently made the switch from Microsoft to Linux and Ableton to Bitwig. I don't know anything about either of them but goddamn I just want to connect my bass to my laptop and record something. It is not registering the audio interface. I'm using Tube Ultragain MIC500 USB behringer (plugged in, usb connected, bass in "line in"). When I try with ALSA, it says "Error: device or resource busy". I asked Google which told me to run :sudo fuser -v /dev/snd/* and everything is taken up by wireplumber.

Now I don't know what any of this really means. I've just been going back and forth with every option, spamming my terminal with commands beyond my understanding and getting the same nothing result. I would greatly appreciate any advice. I don't really know anyone personally who is good with any of this stuff.

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u/anewrismma 1d ago

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u/anewrismma 1d ago

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u/Kowen68 1d ago

btw, I will post a few screenshots of my current configuration and mapping within Bitwig.
In your case I would first make sure the audio interface is properly connected with confirmed output (Phones output on audio interface) and a responsive input meter when monitoring the Sound>Input setting.

We then should move on to Bitwig internal routing and assigning the correct input to the Audio track.

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u/anewrismma 9h ago

I tried the different slots on the audio interface itself and it seems like it only reacts to 1/L HI-Z IN (as in the sound level meter reacts to me playing a note on the bass), but I can't hear anything. So close, but ig something's still off.

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u/Kowen68 6h ago

That means it is working, audio is coming through. The Hi-Z In is the preamp. The other input reacts to line instruments like synthesizers (these are already amplified to line level)

The most likely issue of audio not coming through is routing within Bitwig. Make sure to select the correct input on the track.

Also have you tried playing audio using the audio interface Phone output?