This is really beautiful.

I created something similar a while ago:

https://officenoise.cloud/

Same idea, less visually pleasing - but with the twist that all the sounds you hear are triggered by other visitors of that webpage.

Looks cool! I once tried something similar and released it as a reveal.js plugin:

https://github.com/functino/reveal.js-wave-plugin

But I just used the WebcamSwiper-Lib.

Maybe you could try to package it as a Plugin too - so there would be no need for a fork.