Hi,

I have purchased a new MacBook Pro 15inch with touch bar with macOS High Sierra, but I'm having trouble getting sound from RME Fireface UC USB with serial number 22946444.
Before that I worked with a pc with windows XP and windows 7 and had no problems with my Fireface UC sound card.
I have put the sound card in mode AP (Mac) and have installed the latest Mac OS Sierra driver 3.10

http://www.rme-audio.de/en/downloads/driver/uc.php

I also installed the flash update tool and I have done the upgrade on my sound card.

When I play some music i hear a crackling and whistling sound.

Do you know what I am doing wrong?
I have to adjust something in my settings?
Install another driver?

Thanks for the support
Bruno