There's also Nuldehpah (as with yourself Im not too sure on the spelling) which does the same thing. It actually comes with the OS3.9 install that comes with amithlon if Im not mistaken so shouldnt need to be extracted. Cant recall off the top of my head if its nuldehpah or puhbaer though.
It's been a while since I played it so I may be mistaken, but is there maybe and update or patch for ahi sound for NemacIV? I dont recall having to use either nuldehpah or puhbaer (whichever it is, Im too lazy to go to the other room and check

with NemacIV when I played it on Amithlon.