SFX ripping/decoding/dumping features?

[iteachvader]

(06-14-2015, 06:17 AM)jimbo1qaz Wrote: The GC-ADPCM format relies on some numeric coefficients. I posted them in a previous post, but it's possible that every sample has different coefficients. I also don't know about the "previous" values, whether they're the same or not for all tracks.
I think it should be possible to decode it (not perfectly) as a single long file.

I would greatly appreciate any and all help, I can even provide a decoder for certain Gamecube ADPCM data that didn't work with Rogue Squadron II. Perhaps that could serve as a template if it's modified to decode Rogue Squadron II and III's audio format. It is only 69.9 kb in size.