soundRequest.js

var setup = function() {
    var soundRequest = new XMLHttpRequest();
    soundRequest.open("GET", "/media/audio/gamedev/bg_menu.ogg", true);
    soundRequest.responseType = "arraybuffer";
    	
    soundRequest.onload = function () {
  	try {
  	   //
  	}
  	catch(e) {
  	   console.warn('Web Audio API is not supported in this browser');
  	}
   };
   soundRequest.send();
};