63 lines
2.2 KiB
JavaScript
63 lines
2.2 KiB
JavaScript
'use strict';
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const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
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let wavesurfer, context, processor;
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// Init & load
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document.addEventListener('DOMContentLoaded', function() {
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let micBtn = document.querySelector('#micBtn');
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micBtn.onclick = function() {
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if (wavesurfer === undefined) {
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if (isSafari) {
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// Safari 11 or newer automatically suspends new AudioContext's that aren't
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// created in response to a user-gesture, like a click or tap, so create one
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// here (inc. the script processor)
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let AudioContext =
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window.AudioContext || window.webkitAudioContext;
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context = new AudioContext();
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processor = context.createScriptProcessor(1024, 1, 1);
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}
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// Init wavesurfer
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wavesurfer = WaveSurfer.create({
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container: '#waveform',
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waveColor: 'black',
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interact: false,
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cursorWidth: 0,
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audioContext: context || null,
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audioScriptProcessor: processor || null,
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plugins: [
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WaveSurfer.microphone.create({
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bufferSize: 4096,
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numberOfInputChannels: 1,
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numberOfOutputChannels: 1,
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constraints: {
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video: false,
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audio: true
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}
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})
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]
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});
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wavesurfer.microphone.on('deviceReady', function() {
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console.info('Device ready!');
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});
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wavesurfer.microphone.on('deviceError', function(code) {
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console.warn('Device error: ' + code);
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});
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wavesurfer.on('error', function(e) {
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console.warn(e);
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});
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wavesurfer.microphone.start();
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} else {
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// start/stop mic on button click
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if (wavesurfer.microphone.active) {
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wavesurfer.microphone.stop();
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} else {
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wavesurfer.microphone.start();
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}
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}
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};
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});
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