vgmrips

As I said, the sound codes should match with the playlist files in M1. (Or Hoot for that matter)

For example, Metal Slug



This is a decimal value which correspond to hex code 0x002B in Unibios.

Btw there's a complete list of sound drivers for the Neo Geo here

Yes, that's clear.
I was thinking there might be a way to figure out which (hex)codes actually play a sound without having to test them all in the complete range.

I know unibios uses a database for this, but that is not public I guess.
I thought maybe analyzing the "M" roms would lead to a lookup-table where all available codes for a certain game are listed?

I small announcement from me, after some IRC discussion of the topic of using M1:

As of today, M1 is officially deprecated for VGM logging.

That means: You don't log VGMs with it.
Use MAME instead. Its emulation is just far better.

If you have problems with games (e.g. no sound test or sound tests are unuseable), then feel free to ask in the chat. (or directly via IRC)