audio

var dogBarkingBuffer = null;
window.AudioContext = window.AudioContext || window.webkitAudioContext;
var audio = new AudioContext();

var request = new XMLHttpRequest();
request.open('GET', "icons/a.mp3", true);
request.responseType = 'arraybuffer';

request.onload = function()
{
    audio.decodeAudioData(request.response, function(buffer)
    {
        console.log(buffer);
        dogBarkingBuffer = buffer;

//        var source = audio.createBufferSource();
//        source.buffer = buffer;
//        source.connect(audio.destination);
//        source.start(0);
    });
}

request.send();

https://github.com/jieverson/DJi/blob/master/index.js