Oooooh new save. I have to do a new save or it won't work...NOOOO!! I got sooo far! But I wanna hear the voices!! I'm so sad. I'm on my first playthrough and wanted to spice it up with some audio enhancements. I'm devastated!
Because this mod changes a lot of the audio channels etc within the game, I recommend you start a new save. In general, you don't want to mix modded save files with unmodded ones, as it can create some unexpected errors.