Topic: crackling sounds with fireface uc400

Hello everyone! Let me describe the problem:

My Fireface is connected to my Mac via USB2, and my Mac is currently running Big Sur. The output goes to 2 monitors via Jack.

Here's the issue: I'm experiencing crackling sounds. And not just any time, it happens when two or more applications are open simultaneously. Logic alone, no problem; YouTube, no problem; Guitar Pro 7, no problem. But as soon as I open a second application, the sound crackles and glitches.

I might be wrong, but I've analyzed my RAM and processor while this was happening, and that's not the cause. I've also downloaded the latest driver (2024, I believe), and the problem persists...

2

Re: crackling sounds with fireface uc400

OS? Driver version?

Regards
Matthias Carstens
RME

Re: crackling sounds with fireface uc400

Have you tried all available USB ports? Which driver exactly is installed here?

Regards
Daniel Fuchs
RME

Re: crackling sounds with fireface uc400

Could it be related to sample rate mismatches between the different audio applications?

UCX - FF 400 - Babyface pro - Digiface USB - ADI-2 (original)
Mac mini M1 - Macbook pro - iPad Air2