Per-channel WAV export for audio?

[smaybius]

I don't know if there's already a discussion for it, but to make up for sound systems that aren't in the VGM spec, could there be a feature for recording the audio emulation cores per voice instead of only as one file? What I'm meaning is something like this https://www.youtube.com/watch?v=EcANFu6x6G4, where the 2x AY is gotten with VGM logging, and the rest is individually recorded with the other outputs muted. This is especially important for "custom" chips or netlist circuits that don't have per-voice adjustable volume in the menu.