SPC topic

I think for FFVI instruments used in songs are stored in BBR samples because you can replace them in FF3usME. As of the sound effects that you produce by using the event command F4, I think they come from the SPC core waveform generator: Here are some offsets I found in a detailed ROM map:

That covers the BBRs. There are 63 adresses for 63 instruments (3F).

Just because there are 63 instruments listed that doesn't mean the sound effects aren't still BRRs as well. The game may only read the instrument sample pointer table and not the sound effect table. Games like Street Fighter 2 and Mortal Kombat are a prime example of this as is games like Tales of Phantasia and Star Ocean as well.

You shouldn't separate instrument samples and in-game generated waveform sound effects in terms of calling one a BRR and the other something else. Any waveform that was prerecorded and compressed into a BRR then imported into the game/ROM should be identified as a BRR. If the sound effect or instrument uses the game's specific SPC core waveform generator for triangle, saw, sine or square waveforms those aren't always BRRs but I've noticed that a larger portion are still imported and compressed BRRs. There does seem to be a few games that I've noticed they use an in-game waveform generator but I don't have a specific example listed in any of my documents from 2006/2007.

It is xmas, I'll continue this after the family holiday stuff is over. haha!