Created attachment 290019 [details]
Update from 5.7.5 to 5.7.6 kills USB audio card.
Reproduced as noise instead of sound. Can't say precisely, but sounds like huge time lag.
I reverted all patches for files placed in sound/* from 5.7.6 patch and so far it works for me..
Created attachment 290055 [details]
Reverted patches from 5.7.6
*** This bug has been marked as a duplicate of bug 208353 ***