Well, true. However, what I meant is each GBS player varies I think in large part because they might be trying to emulate a different GB. :) I guess if you wanted, you could have settings that will change the audio depending on what version of the system you wanted to emulate...
I've also taken the liberty of boosting the FDS and VRC6 volume levels to compensate. Playing stereo GBS tracks with this will result in unappealing results. This does change mono GBS tracks to stereo. HES is unchanged because all the tracks I listen to are already stereo. KSS is similarly untouched because I don't care too much about MSX music. ValleyBell recently made MSX comply with the VGM format, rendering KSS fairly obsolete, as far as I can tell. VRC7 is untouched, because Lagrange Point is already stereo.
For some reason, pairing the 2A03 Triangle with a Square Wave produced a buzz in the Triangle. I fixed this by placing the Triangle in the center. Overall the placement of channels sounds good.
Some tracks may produce a tiny bit of clipping. This has to do with the mixing of the channels and possibly my volume boosts. Everything is hard coded but tweakable. Let me know of your playback experience. Enjoy!
EDIT: If you were having trouble with the first build loading, I've updated the link to point to a build that should work.
The included INI file must have NESAPUVolume=32 for proper channel levels. (And AlwaysStereo=1, obviously.)
NEZplug+++ by one at 6:40 PM EST on November 10, 2019
Found this by Retro VGM Revival Hour podcast (and the inability to rest until I found the source of the sweet discrete stereo NES tracks he had) and it fundamentally changed the way I listen to NES soundtracks. You can so easily pick out what each individual instrument is doing. Separate tracks on separate ears tickles parts of the brain that just cant be reached any other way, and breathes new life into old tunes! I can't believe everyone is not talking about this all the time! Thank you!
Wow, I'm glad people are actually using this! Yeah, forcing simple stereo > mono. If only I had a center channel to then do 3-channel upmixing. Anti-comb filtering/clearer center channel would be cool for everything.