In this patch very often there are problems with sounds and music. There are cracklings which don't only hurt my ears but also have a huge influence on performance.
I'm surprised that no one had reported it yet.
Polish version with all the expansions - just to be clear :) Installed by Galaxy.

I noticed this too, mostly when my harddrive is busy. That didn't happen on earlier patches.
Disabled the frame limiter and went to fullscreen Vsync, seems a little better now but I need to play more tonight.

Also very sad that after a year, all movies and some cutscenes still play at ~half the volume of the normal game.

In the 1.22 patch it is a bit better but still cracklings are occuring from time to time.