Hi MopfinSmiley!
We've had a few reports of computer setups that have this issue and we believe it may be related to out audio middleware not initializing correctly. I'm looking into the best way to handle this but it will take some time. In the meantime, are you using headphones or another audio device? Some players have had luck by changing the audio output in windows to a different device before booting the game.
When a fix is ready we will update and post to let everyone know it's been addressed.
- Andrew