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| import Multitrack from 'https://unpkg.com/wavesurfer-multitrack' | |
| import WebAudioPlayer from 'https://unpkg.com/wavesurfer-multitrack/dist/webaudio.js' | |
| const audioContext = new AudioContext() | |
| const GAIN = 2 | |
| const multitrack = Multitrack.create( | |
| [ | |
| { | |
| id: 0, | |
| options: { | |
| waveColor: 'hsl(161, 87%, 49%)', | |
| progressColor: 'hsl(161, 87%, 20%)', | |
| media: new WebAudioPlayer(audioContext), | |
| }, | |
| url: '/examples/audio/audio.wav', | |
| }, | |
| { | |
| id: 1, | |
| options: { | |
| waveColor: 'hsl(121, 87%, 49%)', | |
| progressColor: 'hsl(161, 87%, 20%)', | |
| media: new WebAudioPlayer(audioContext), | |
| }, | |
| url: '/examples/audio/demo.wav', | |
| }, | |
| ], | |
| { | |
| container: document.querySelector('#container'), // required! | |
| minPxPerSec: 10, // zoom level | |
| rightButtonDrag: false, // set to true to drag with right mouse button | |
| cursorWidth: 2, | |
| cursorColor: '#D72F21', | |
| trackBackground: '#2D2D2D', | |
| trackBorderColor: '#7C7C7C', | |
| dragBounds: true, | |
| envelopeOptions: { | |
| lineColor: 'rgba(255, 0, 0, 0.7)', | |
| lineWidth: 4, | |
| dragPointSize: window.innerWidth < 600 ? 20 : 10, | |
| dragPointFill: 'rgba(255, 255, 255, 0.8)', | |
| dragPointStroke: 'rgba(255, 255, 255, 0.3)', | |
| }, | |
| }, | |
| ) | |
| document.querySelector('#play').addEventListener('click', () => { | |
| multitrack.setTime(0) | |
| multitrack.play() | |
| }) | |
| document.querySelector('#only-0').addEventListener('click', () => { | |
| multitrack.setTrackVolume(1, 0) | |
| multitrack.setTrackVolume(0, GAIN) | |
| }) | |
| document.querySelector('#only-1').addEventListener('click', () => { | |
| multitrack.setTrackVolume(0, 0) | |
| multitrack.setTrackVolume(1, GAIN) | |
| }) | |
| /* | |
| <html> | |
| <label> | |
| Zoom: <input type="range" min="10" max="100" value="10" /> | |
| </label> | |
| <div style="margin: 2em 0"> | |
| <button id="play">Play</button> | |
| <button id="only-0">Only track #0</button> | |
| <button id="only-1">Only track #1</button> | |
| </div> | |
| <div id="container" style="background: #2d2d2d; color: #fff"></div> | |
| </html> | |
| */ |
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