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Thomas Dodds
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Update to Superpowered v2.7.2
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‎README.md

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@@ -4,7 +4,7 @@ Superpowered Inc develops the Superpowered Web Audio JavaScript and WebAssembly
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Developers can use Superpowered interactive audio features in JavaScript without the need of building, initializing or even touching WebAssembly or C++.
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For the most up-to-date information, see: https://superpowered.com/js-wasm-overview
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For the most up-to-date information, see: https://docs.superpowered.com/?lang=js
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# JavaScript + WebAssembly
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- Time domain to frequency domain, frequency domain to time domain
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- Time Stretching, Pitch Shifting
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- FFT: complex, real, real-polar
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- Web Audio I/O, support for ScriptProcessorNode, Workers, Worklets and Audio Worklet
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- Web Audio I/O, support for Workers, Worklets and Audio Worklet
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# Demos

‎dist/Superpowered.js

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‎dist/superpowered-npm.wasm

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‎dist/superpowered.wasm

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‎examples/example_effects/Superpowered.js

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‎examples/example_effects/main.js

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import './Superpowered.js';
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import { SuperpoweredGlue, SuperpoweredWebAudio } from './Superpowered.js';
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const states = { NOTRUNNING: 'START', INITIALIZING: 'INITIALIZING', RUNNING: 'STOP' }
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‎examples/example_effects/processor.js

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import './Superpowered.js';
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import { SuperpoweredWebAudio } from './Superpowered.js';
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function calculateFrequency(value, minFreq, maxFreq) {
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if (value > 0.97) return maxFreq;

‎examples/example_guitardistortion/Superpowered.js

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‎examples/example_guitardistortion/main.js

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import './Superpowered.js';
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import { SuperpoweredGlue, SuperpoweredWebAudio } from './Superpowered.js';
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var webaudioManager = null; // The SuperpoweredWebAudio helper class managing Web Audio for us.
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var Superpowered = null; // Reference to the Superpowered module.

‎examples/example_guitardistortion/processor.js

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import './superpowered.min.js';
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import { SuperpoweredWebAudio } from './Superpowered.js';
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class MyProcessor extends SuperpoweredWebAudio.AudioWorkletProcessor {
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// runs after the constructor

‎examples/example_guitardistortion/processor_live.js

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import './Superpowered.js';
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import { SuperpoweredWebAudio } from './Superpowered.js';
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class MyProcessor extends SuperpoweredWebAudio.AudioWorkletProcessor {
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// runs after the constructor

‎examples/example_pitchbend/Superpowered.js

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‎examples/example_pitchbend/assets/Superpowered.js

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‎examples/example_pitchbend/assets/processor.js

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import "./Superpowered.js";
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import { SuperpoweredWebAudio } from './../Superpowered.js';
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class MyProcessor extends SuperpoweredWebAudio.AudioWorkletProcessor {
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cancelledPitchBend = true;

‎examples/example_pitchbend/assets/superpowered-npm.wasm

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‎examples/example_pitchbend/index.html

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<head>
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<title>Superpowered WebAssembly Audio Player Time Stretching and Pitch Shifting Example</title>
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<script type="module" src="./polyfill_worklet_import.js"></script>
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<link href="/style.css" rel="stylesheet" />
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<link href="./style.css" rel="stylesheet" />
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</head>
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<body>
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<div class="container">
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<img class="logo" src="/assets/superpowered.svg" />
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<img class="logo" src="./assets/superpowered.svg" />
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<div class="controls">
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<h2>AAP pitch/speed controls</h2>
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<p>A demonstration of pitch bend, pitch shift and playback rate changes with the Advanced Audio Player class</p>
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<div id="content">Initializing...</div>
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</div>
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</div>
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<script src="main.js" type="module"></script>
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<script src="./main.js" type="module"></script>
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</body>
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</html>

‎examples/example_pitchbend/main.js

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import "./assets/Superpowered.js";
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import { SuperpoweredGlue, SuperpoweredWebAudio } from './Superpowered.js';
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var webaudioManager = null; // The SuperpoweredWebAudio helper class managing Web Audio for us.
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var Superpowered = null; // A Superpowered instance.
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async function start() {
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webaudioManager = new SuperpoweredWebAudio(44100, Superpowered);
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currentPath = window.location.href.substring(0, window.location.href.lastIndexOf('/'));
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audioNode = await webaudioManager.createAudioNodeAsync(window.location.href + '/assets/processor.js?date=' + Date.now(), 'MyProcessor', onMessageFromAudioScope);
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audioNode = await webaudioManager.createAudioNodeAsync(window.location.href + 'assets/processor.js?date=' + Date.now(), 'MyProcessor', onMessageFromAudioScope);
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// audioNode -> audioContext.destination (audio output)
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webaudioManager.audioContext.suspend();
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audioNode.connect(webaudioManager.audioContext.destination);
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requestAnimationFrame(requestPitchBendDetails)
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}
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async function loadFromMainThread() {
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async function loadFromMainThread() {
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Superpowered.downloadAndDecode(window.location.href + '/assets/track.mp3', audioNode);
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}
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async function loadJS() {
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Superpowered = await SuperpoweredGlue.Instantiate('ExampleLicenseKey-WillExpire-OnNextUpdate', `${window.location.href}/assets/superpowered-npm.wasm`);
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Superpowered = await SuperpoweredGlue.Instantiate('ExampleLicenseKey-WillExpire-OnNextUpdate');
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// display the START button
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content = document.getElementById('content');

‎examples/example_pitchbend/style.css

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justify-content: center;
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text-align: center;
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height: 100vh;
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background-image: url(/assets/wave.svg);
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background-image: url('./assets/wave.svg');
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background-size: cover;
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overflow-y: auto;
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margin: 0;

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