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//creating an audio context
var context;
var audioBuffer;
window.addEventListener('load', init);
function init()
{
try
{
window.AudioContext = window.AudioContext || window.webkitAudioContext;
context=new AudioContext();
}
catch(e)
{
alert("Your browser doesn't support Web Audio API");
}
initAudio();
}
function initAudio(){
console.log("audio ready");
console.log("inside audio initialized callback");
var url1 = "someurl"
var url2 = "someotherurl"
loadAndPlay(url1, function(){
loadAndPlay(url2, function(){
console.log("played both urls");
});
});
}
function loadAndPlay(url, callback) {
var audioURL=url;
//creating a new request
var request = new XMLHttpRequest();
request.open("GET",audioURL,true);
request.responseType= 'arraybuffer';
request.onload = function(){
//take the audio from http request and decode it in an audio buffer
context.decodeAudioData(request.response, function(buffer){
audioBuffer = buffer;
console.log(audioBuffer);
if(audioBuffer){ // check here
playSound(callback);
}
});
};
request.send();
}
//playing the audio file
function playSound(callback) {
//creating source node
var source = context.createBufferSource();
//passing in file
source.buffer = audioBuffer;
source.onended = function(){
console.log("inside ended callback");
console.log("ended");
if (typeof(callback) != "undefined" ){
callback();
}
}
//start playing
source.connect(context.destination); // added
source.start(0);
console.log('playing');
}
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