AWAKENING THE NIGHTMARE CUTSCENE/GAME AUDIO

I am playing on a windows 10 PC my game tag is Iceoneoone and I’m playing on the North American severs.
When I start the new campaign the cutscene loads all the sounds work but the voice’s sound as though they are far away. Then when the game plays all the voice from the actual campaign don’t play. It’s very odd to say the least because i have never had this problem before with any of the halo wars games. I have no idea want to do or how to remedy this problem. Please help if you can this problem really take away form the gameplay.