Spuštění zvuku pomoci javascript - mobil

<script>
var audio = new Audio("wav/alarm.mp3");
audio.loop = true;
audio.volume = 0.5;
audio.addEventListener("canplay", function() {
    audio.play();
});
</script>
<a href="#" onclick="audio.pause();">Stop</a>

var MobilePlay = function () {

    /** @type {MobilePlay} */
    var self = this;

    /** @type {null} */
    this.source = null;

    /** @type {AudioContext|webkitAudioContext|null} */
    this.context = null;

    /**
     * @param {String} file
     * @returns {void}
     */
    var loadFile = function (file) {
        var soundXhr = new XMLHttpRequest();
        soundXhr.open('GET', file);
        soundXhr.responseType = 'arraybuffer';
        soundXhr.addEventListener('load', function (r) {
            self.context.decodeAudioData(
                soundXhr.response,
                function (buffer) {
                    self.source.buffer = buffer;
                    self.source.connect(self.context.destination);
                    self.source.loop = false;
                });
            self.play();
        });
        soundXhr.send();
    };

    /**
     * @returns {void}
     */
    this.play = function () {
        this.source.start(0);
    };

    /**
     * @param {String} file
     * @returns {void}
     */
    this.init = function (file) {
        this.context = new (window.AudioContext || window.webkitAudioContext)();
        this.source = this.context.createBufferSource();
        loadFile(file);
    };
};
(new MobilePlay()).init('wav/tuk.wav');