Sound wise the game doesn't have any glaring flaws. I've always found the Raider theme to be a good piece. Voice overs during cut scenes do sound forced at times, but there's not that many of them. Most environmental noises aren't badly done. You'll know there's a waterfall, or fast moving river in the area before you see it.
Music builds during encounters, other times it's mostly soothing.
You'll hear animals like Raptors approaching, and the T-Rex encounter is very memorable. If you haven't played a Raider game, this is the one to get. I think it's the best of the series. True, the sequels look a little better, but I still found the first one to be the most enjoyable. With the movie due out in a couple of weeks, I guess another fling in some dark places with Ms. Croft doesn't sound like like a bad idea after all.