FF6 Music Overhaul

It seems the akb format has a 204 bytes header followed by the ogg: https://steamcommunity.com/app/312750/di...336049726/

It seems to be true, and there are 4 three-bytes values that always change in the header: 00000008-0000000A, 00000010-00000012, 00000014-00000016 and 00000018-0000001A. Your loop-start and loop-end values are probably there. My first bet would be 00000014-00000016 as loop start and 00000018-0000001A as loop end because 00000014-00000016 is always smaller than 00000018-0000001A and they do not exceed 00000010-00000012 which could be song total length / file length. Those 3 bytes values are probably inverted (read from right to left) and represent probably samples number. Well they have to otherwise my guessed logic falls apart.

Some testing will be required to confirm all this (or not) but I leave this to you. You'll have to change all the songs manually but some automation can be done after: https://steamcommunity.com/app/312750/di...3475986718

Edit: Once you know where the loop-start and loop-end values are in a ogg file and in the akb header, it is easy to write a program that loop in a folder and extract the header from the file, add the header to new ogg and change the header looping info (and maybe file length if necessary). I could help at that point.