[Brainstorm] Making audio mods

The audio files are stored in SOUND\PC.



The containers are a CRIWARE proprietary format, .ACB and .AWB. .ACB seems to be the instructions for the audio files.



These can be extracted by using VGM Toolbox [sourceforge.net] or Eternity Audio Tool. [http//mega%28DOT%29nz] Steam will say that it's a malicious link, but it's just a MEGA download link.



or Eternity Audio Tool. Steam will say that it's a malicious link, but it's just a MEGA download link. However, keep in mind that EAT will only show TIKYUUX_MUSIC.AWB. VGM Toolbox can also extract the associated ACB, which will produces 25 BGMs. This seems to be because VGMT is making an error and ignoring the other files once it encounters the cue ID it's looking for.



EAT can extract/convert the AWB straight into .wav. With VGMT, you will get .BIN file.



The .BIN files are actually .HCA audio files, so just change the extensions. You can convert these using EAT, or another program such as HCA Decoder. [github.com]



Each audio file has a Cue ID associated with it, which is basically a string of 4-5 numbers that gives the reference number.This is usually included in the filename when you extract the audio.



By using EAT, you can pick out an individual song and replace it with something else (normally). However, doing this doesn't seem to actually work. I've tested this on the menu music, and instead of playing normally, no music plays at all.



I did the same with Sonic Audio Tools [github.com] AcbEditor, same result.



AcbEditor, same result. I extracted the modified AWB and confirmed that the audio I put in there is still there. What I can conclude from this is what the ACB isn't registering the changes. Filename is wrong? Cue ID?



AcbInjector from Sonic Audio Tools crashes whenever I try that. Maybe I got the filename wrong?



So, currently I am stuck at making the changes register to the ACB. I don't have Criware's audio software (ADX2), and I don't know how else to repackage a modified ACB file.

In this thread, let's figure out how to make audio mods. This is also just an excuse to dump what little progress I made while trying this out.