After the regular updates (on 20.04 and 21.10) audio had crackling noise on the USB audio interface, while it was normal on the internal audio.
Tried with different sound cards (presonus audiobox, behringer xenyx q802) and three different machines.
Might be in the kernel 5.13.0-37
Reverting to that kernel removed the problem: linux-image-5.13.0-35-generic
After the regular updates (on 20.04 and 21.10) audio had crackling noise on the USB audio interface, while it was normal on the internal audio.
Tried with different sound cards (presonus audiobox, behringer xenyx q802) and three different machines.
Might be in the kernel 5.13.0-37
Reverting to that kernel removed the problem: linux-image- 5.13.0- 35-generic