I have been testing this a bit but I find there's quite a lot of samples where voices become muffled or unclear. I have two particular examples I wanna highlight:
3_Death: The "HELP ME!" scream becomes muffled halfway through, but you can still hear some distortion happening at the end of the clip.
SM207_MB_01: Vasudan voicelines in general get a raw deal. With the original files, you can hear both the vasudan and translated lines clearly and at the same volume. With this mod's files, vasudan characters become significantly harder to understand - mostly the vasudan, but often enough the translated lines become muffled or tuned out.