IdWav's (Mozart!) by pepper at 10:07 PM EDT on October 28, 2012
Considering no one at xentax figured it out when rage came out, and it looks like the same format in d3 BFG edition, I might at well ask for help here.
Header is mzrt, which has led me to nickname it mozart format.
here's what I know, probably some kind of adpcm, due to around 3:1 compression size compared to the original doom 3 raw wav's data pfire_01.wav is 74kb versus pfire_01.idwav is 23kb. also I know this may seem silly to want to decode, but what i really want to take a crack at are the rage sound files, which are pretty much the same, except the headers are in one file and the audio data in another huge streamed file. Headers in that were also mozart style.
Thanks for atleast looking at it, I've tried all kinds of adpcm formats to decode, closest i got was with xbox adpcm, but it was still horribly squelchy.