Originally posted by NalsrA:

I found the solution. I had to close Sonic Sound Studio and then relaunch the game and the sound works perfectly.
It's really weird because all my other games have no problem with sound, but Valheim seems to have an issue with Sonic Sound Studio.

This answer got me really hopeful for a moment. Could you rephrase it? such as close sonic sound studio? Like using task manager force it to shut down?