NSruf

I'd like to be able to mute background sound in HGSS (primarily) and BW2 (but just a few new moves in this case) n order to rip sounds as in this video: Is there any simple "trick" to do this easily enough? I don't think there are any AR codes to mute background music. I have ripped all music files but only as MIDIs, and I'd like to have the original sounds with original soundfonts. There's a HG and SS background mute patch going around if you google about it, but the Dropbox link is long dead.