ROM Hack Extract compressed audio in .PCK & .BNK files?

[TheRiftyGlazer]

I’ve been trying to extract all the audio/sfx from Luigi’s Mansion 3, primarily the cutscene sfx.
For those who don't know, the game saves all of its audio in a wwiseaudio folder which includes a .pck and .bnk file. I have already decrypted the RomF and have searched the rest of the files using Toolbox and multiple other software.

While Wwise Unpacker has helped with extracting the audio in the .pck file such as the music and some cutscene sfx, there’s still a bunch of other sounds I have yet to uncover in the RomF such as the remaining cutscene sfx and sounds. I’ve been unable to decrypt the .bnk file with Quickbms and don’t think the rest of the sounds would be stored outside the wwiseaudio folder.
However, using the RScanner in RavioliGameTools has shown that there are 120 extra unknown .dat files along with the 637 files in the .pak file, which makes me think the rest of the sounds could be compressed within the .pck file.

If anyone has feedback it would be greatly appreciated.

 

[GalaxiePerfect]

bump!!

 

[masagrator]

For unpacking bnk I recommend to use wwiser as start point to make your own unpacker because it can parse properly complicated metadata
https://github.com/bnnm/wwiser

I used it to make my own bnk unpacker for Xenoblade Chronicles X targeting BGM:
https://github.com/masagrator/NXGameScripts/blob/main/XenobladeChroniclesX/bnk_extract.py

And for unpacking generally PCK I made this:
https://github.com/masagrator/NXGameScripts/blob/main/XenobladeChroniclesX/pck_unpack.py