Hi FanRailer
I'm having the same problem with my sound in TS2015. I don't fool around with my computer because it only gets me in more trouble
My sound works fine in all my other games but TS2015 is now silent and that takes away the enjoyment of the Sim.
It's like silent movies! I just did another file recovery last night and that did nothing
Now I'm going to try and download a new driver for my sound and then try to install the drivers where the other guys told me to do on my post.
That kind of project is like rocket science to me.
I know I will do something wrong and get into more trouble. But I will never learn:)
I think I will try and get help from Steam about this issue. If I can't get it fixed I'll go back to Trainz where I can hear everything just fine.
It seems like a lot of work to play a game
Hope you solve your problem.
Bob