Thanks for the reply. From my understanding, its just the file that gives access to all of the NPC voices. I downloaded it from the Optional Downloads here on the forums (
viewtopic.php?f=20&t=55960 ). My friend downloaded the same file and he can hear all of the voices. I tried to just copy his override to see if it would fix it, but no luck. There are a lot of people in game that I just simply can't hear their voices when they use them.