Dittytoy

JavaScriptでシンセ作ったり音楽作って共有できるやつ

書式

Sonic Piに影響を受けているらしい

code:js

ditty.bpm = 120;

loop( () => {

sine.play( c4, { attack: 0.01, release: 0.25, duration: 1.0 } );

sleep( 2.0 );

}, { name: 'my ditty' } );

Synthの定義

code:javascript

// phase: t * freq

// env: the current voltage of the envelope

// tick: the time * bps since the note on

// options: optional parameters it received

const mySynth = synth.def( ( phase, env, tick, options ) => {

const gain = options.gain ?? 1.5;

return Math.tanh( gain * Math.sin( TAU * phase ) );

} );

Debug

code:javascript

// log lines are reused for each labels, easy to debug continuous values

debug.log( label, message );

debug.warn( label, message );

debug.error( label, message );

// debug.probe displays an oscilloscope for each labels

debug.probe( label, value, amp, duration );