_ff-addon-snippet-playSound - Trying to use Audio API to play sound.

_ff-addon-snippet-playSound.js

function audioContextCheck() {
	if (typeof Services.appShell.hiddenDOMWindow.AudioContext !== 'undefined') {
		return new Services.appShell.hiddenDOMWindow.AudioContext();
	} else if (typeof Services.appShell.hiddenDOMWindow.mozAudioContext !== 'undefined') {
		return new Services.appShell.hiddenDOMWindow.mozAudioContext();
	} else {
		throw new Error('AudioContext not supported');
	}
}

var audioContext = audioContextCheck();

var audioBuffer;

var getSound = new XMLHttpRequest();
getSound.open('get', OS.Path.toFileURI(OS.Path.join(OS.Constants.Path.desktopDir, 'zirzir.mp3')), true);
getSound.responseType = 'arraybuffer';
getSound.onload = function() {
	audioContext.decodeAudioData(getSound.response, function(buffer) {
		audioBuffer = buffer;
		var playSound = audioContext.createBufferSource();
		playSound.buffer = audioBuffer;
		playSound.connect(audioContext.destination);
		playSound.start(audioContext.currentTime);
	});
};

README

Rev1

• Works, have a file on your desktop named zirzir.mp3