Today, I received my new Asus ROG machine to replace my old Asus ROG machine. After getting all the Windows Updates, I ran this game and no sound. I then installed Steam, Visual Studio Pro, and Unity 18-20. When I installed Steam, I installed Shogun 2 Total War which had some redistributables. One of those installs did the trick as I have sound now.
When I tried to run the game on the old machine, I had just reset my computer because of some issues. I had removed Unity, Visual Studio and Steam and I didn't have any other games installed. It was pretty much a clean install. I would say that your game does require something to get the sounds to work. And I would guess it is something pretty common, else others would have chimed in by now. I just do not know exactly what the common redistributable is.
Thanks