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POload & play multiple files at once from a array of location names
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  1. POload & play multiple files at once from a array of location names
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    copied!<pre><code>window.onload = init; var list = new Array(); //array containing list of music sources var playListBuffer = new Array(); //array to put in all decoded audio var playList = new Array(); var context = new webkitAudioContext(); function init(){ list = ["../media/cello_suit.mp3","../media/morning.mp3"]; //list of files to play at once load(list); } function load(url){ for (var i=0; i&lt;list.length; i++){ //load in every url var request = new XMLHttpRequest(); request.open('GET', list[i], true); request.responseType = 'arraybuffer'; request.onload = function () { //Async method console.log(request.response); context.decodeAudioData(request.response, function(buffer) { //Async method if (!buffer) { alert('error decoding file data: '); return; } playListBuffer.push(buffer); //Decode audio and put inside playListBuffer if (list.length==playListBuffer.length){ console.log(playListBuffer); //When All files have been decoded show an Array in console prepare(); } }, function(e) { console.log('Error decoding audio file', e)}); }; request.onerror = function() { alert('BufferLoader: XHR error'); } request.send(); } } function prepare(){ for (var i=0; i&lt;playListBuffer.length; i++){ var source = context.createBufferSource(); // creates a sound source console.log(playListBuffer[i]); source.buffer = playListBuffer[i]; // tell the source which sound to play source.connect(context.destination); // connect the source to the context's destination (the speakers) playList.push(source); } playAll(); } function playAll(){ for (var i=0; i&lt;playList.length; i++){ playList[i].noteOn(0); } } </code></pre> <p>Hi; I have some strage behaviour on this basic script which uses the new webaudio api. This script throws in error in chrome: Uncaught Error: SYNTAX_ERR: DOM Exception 12 audio.js:27 request.onload; however if I remove the second element in my list it works. Why?</p> <p>Background info: this script read an array of song locations and plays them simultaneously.</p>
 

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