It is a simple web player for AY-3-8912 PSG music files. To convert music files from tracker format to PSG, Vortex Tracker can be used.
It is based on the code of two fascinating projects by Matt Westcott: * aychip * psgformat
I also peeked into zxtracker2wav to get some ideas on how to properly use aforementioned libraries.
Unfortunately, due to Web Audio worklet limitations the simplest way to include libraries was copying their code.
Additionally, I had to modify psgformat (from that I only took reader part) to work within browser environment.
It requires node.js or some other http server to run. Just open index.html in your browser.
To start included web server, run npm start and open http://localhost:3000/ in your browser.
AyPsgPlayer class is responsible for playing music. It is a thin wrapper around worklet node, that receives PSG data
and plays it. AyPsgPlayer needs an instance of AudioContext to work, and its ready property contains a promise,
that resolves with the AudioWorkletNode instance, that later is connected to the context's destination.
This is intentional to allow custom output.
PSG files might be quite big for chip-tune music, so additional one-liner unpackGzip allows to use files like music.psg.gz.
MIT