Discrete voice audio routing about chip-player-js HOT 4 OPEN

Basically need 2 things in order to do this...

• refactor audio output to a generic interface, which could be either a file writer or WebAudio context. Medium difficulty.
• expose discrete voices (write to an audio buffer for each voice) outside of each player engine. The player engines are all designed for internal mixing, and write to stereo audio buffer only. Very difficulty.

Getting discrete voices in some common interface would have other benefits, like being able to show an oscilloscope for each channel, but it requires modifying the engines. The problem with modifying the engines is that (1) they each do things differently, so the work doesn't scale very well and (2) it makes things (more) brittle since they will diverge from upstream improvements.

I would like to see how Modizer handles this :)

from chip-player-js.

It looks like Modizer only does this where the engine already supports it.

https://github.com/yoyofr/modizer/blob/master/src/ModizMusicPlayer.mm

see

• m_voicesdataavail=
• m_voice_buff_ana
• //copy voice data for oscillo view

edit: actually Modizer makes deep modification to emulation cores:

yoyofr/modizer@cf11760#diff-7390462695712dbe8460edcaab01bd6597b9d920f20a15211b0172acc8ceb4df

from chip-player-js.

Furnace Tracker provides another example of emulation cores being modified to expose discrete channel output:

https://github.com/search?q=repo%3Atildearrow%2Ffurnace+oscilloscope&type=commits&s=committer-date&o=asc

from chip-player-js.

See also:
tildearrow/furnace#1361
tildearrow/furnace#1355

from chip-player-js.