mirror of
https://github.com/Tonejs/Tone.js
synced 2024-12-28 04:23:15 +00:00
227 lines
5.8 KiB
HTML
227 lines
5.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>VISUALIZING ENVELOPES</title>
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<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
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<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">
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<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.0.0/p5.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/2.4.3/webcomponents-bundle.js"></script>
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<link href="https://fonts.googleapis.com/css?family=Material+Icons&display=block" rel="stylesheet"/>
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<script src="../build/Tone.js"></script>
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<script src="./js/tone-ui.js"></script>
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<script src="./js/components.js"></script>
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</head>
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<body>
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<tone-example label="Tone with p5.js">
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<div slot="explanation">
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Access the envelopes current value to synchronize visuals. This sketch uses <a href="https://p5js.org" target="_blank">p5.js</a> for canvas rendering.
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<br><br>
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Example by <a href="https://github.com/polyrhythmatic">polyrhythmatic</a>
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</div>
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<div id="content">
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<tone-play-toggle></tone-play-toggle>
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</div>
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</tone-example>
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<script type="text/javascript">
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new p5((p5) => {
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p5.setup = () => {
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// create a canvas width and height of the screen
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// document.querySelector('canvas')
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p5.createCanvas(300, 300);
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// no fill
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p5.fill(255);
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p5.strokeWeight(1);
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p5.rectMode(p5.CENTER);
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};
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let phase = 0;
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p5.draw = () => {
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p5.background(255);
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p5.stroke(0);
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// drawing the kick wave at the bottom
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// it is composed of a simple sine wave that
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// changes in height with the kick envelope
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for (let i = 0; i < p5.width; i++) {
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// scaling kickEnvelope value by 200
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// since default is 0-1
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const kickValue = kickEnvelope.value * 200;
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// multiplying this value to scale the sine wave
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// depending on x position
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const yDot = Math.sin((i / 60) + phase) * kickValue;
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p5.point(i, p5.height -150 + yDot);
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}
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// increasing phase means that the kick wave will
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// not be standing and looks more dynamic
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phase += 1;
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// updating circle and square positions with
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// bass envelop visualizer
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const bassRadius = p5.height * bassEnvelope.value;
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p5.stroke("red");
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const bassX = p5.noise(p5.millis() / 1000) * p5.width;
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const bassY = p5.noise(phase / 100) * p5.height;
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p5.ellipse(bassX, bassY, bassRadius, bassRadius);
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// beep envelope viz
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const beepX = p5.noise(p5.millis() / 500) * p5.width;
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const beepY = p5.noise(phase / 50) * p5.height;
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const beepSize = p5.height * bleepEnvelope.value;
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p5.stroke("green");
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p5.rect(beepX, beepY, beepSize, beepSize);
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};
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}, document.querySelector("#content"));
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// filtering the hi-hats a bit
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// to make them sound nicer
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const lowPass = new Tone.Filter({
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frequency: 14000,
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}).toDestination();
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// we can make our own hi hats with
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// the noise synth and a sharp filter envelope
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const openHiHat = new Tone.NoiseSynth({
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volume: -10,
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envelope: {
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attack: 0.01,
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decay: 0.3
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},
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}).connect(lowPass);
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const openHiHatPart = new Tone.Part(((time) => {
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openHiHat.triggerAttack(time);
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}), [{ "8n": 2 }, { "8n": 6 }]).start(0);
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const closedHiHat = new Tone.NoiseSynth({
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volume: -10,
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envelope: {
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attack: 0.01,
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decay: 0.15
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},
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}).connect(lowPass);
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const closedHatPart = new Tone.Part(((time) => {
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closedHiHat.triggerAttack(time);
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}), [0, { "16n": 1 }, { "8n": 1 }, { "8n": 3 }, { "8n": 4 }, { "8n": 5 }, { "8n": 7 }, { "8n": 8 }]).start(0);
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// BASS
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const bassEnvelope = new Tone.AmplitudeEnvelope({
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attack: 0.01,
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decay: 0.2,
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sustain: 0,
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}).toDestination();
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const bassFilter = new Tone.Filter({
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frequency: 600,
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Q: 8
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});
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const bass = new Tone.PulseOscillator("A2", 0.4).chain(bassFilter, bassEnvelope);
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bass.start();
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const bassPart = new Tone.Part(((time, note) => {
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bass.frequency.setValueAtTime(note, time);
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bassEnvelope.triggerAttack(time);
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}), [["0:0", "A1"],
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["0:2", "G1"],
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["0:2:2", "C2"],
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["0:3:2", "A1"]]).start(0);
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// BLEEP
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const bleepEnvelope = new Tone.AmplitudeEnvelope({
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attack: 0.01,
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decay: 0.4,
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sustain: 0,
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}).toDestination();
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const bleep = new Tone.Oscillator("A4").connect(bleepEnvelope);
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bleep.start();
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const bleepLoop = new Tone.Loop(((time) => {
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bleepEnvelope.triggerAttack(time);
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}), "2n").start(0);
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// KICK
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const kickEnvelope = new Tone.AmplitudeEnvelope({
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attack: 0.01,
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decay: 0.2,
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sustain: 0,
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}).toDestination();
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const kick = new Tone.Oscillator("A2").connect(kickEnvelope).start();
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const kickSnapEnv = new Tone.FrequencyEnvelope({
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attack: 0.005,
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decay: 0.01,
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sustain: 0,
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baseFrequency: "A2",
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octaves: 2.7
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}).connect(kick.frequency);
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const kickPart = new Tone.Part(((time) => {
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kickEnvelope.triggerAttack(time);
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kickSnapEnv.triggerAttack(time);
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}), ["0", "0:0:3", "0:2:0", "0:3:1"]).start(0);
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// TRANSPORT
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Tone.Transport.loopStart = 0;
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Tone.Transport.loopEnd = "1:0";
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Tone.Transport.loop = true;
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// bind the interface
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document.querySelector("tone-play-toggle").addEventListener("start", e => Tone.Transport.start());
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document.querySelector("tone-play-toggle").addEventListener("stop", e => Tone.Transport.stop());
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const controls = drawer({
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parent: document.body,
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open: false,
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});
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controls.folder({
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name: "Hihat"
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}).add({
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tone: lowPass,
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}).add({
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name: "Open Hihat",
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tone: openHiHat,
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}).add({
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name: "Closed Hihat",
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tone: closedHiHat
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});
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controls.folder({
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name: "Bass"
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}).add({
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tone: bassFilter,
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}).add({
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tone: bass,
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}).add({
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tone: bassEnvelope
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});
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controls.folder({
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name: "Bleep"
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}).add({
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tone: bleep,
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}).add({
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tone: bleepEnvelope,
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});
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controls.folder({
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name: "Kick"
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}).add({
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tone: kick,
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}).add({
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tone: kickEnvelope,
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}).add({
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tone: kickSnapEnv,
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});
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</script>
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</body>
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</html>
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