*** Première technique

<audio id="audio" src="http://www.soundjay.com/button/beep-07.wav" autostart="false" ></audio>
    <a onclick="playSound();"> Play</a>
    <script>
    function playSound() {
          var sound = document.getElementById("audio");
          sound.play();
      }
    </script>


*** Deuxième technique, constructeur

function sound(src) {
    this.sound = document.createElement("audio");
    this.sound.src = src;
    this.sound.setAttribute("preload", "auto");
    this.sound.setAttribute("controls", "none");
    this.sound.style.display = "none";
    document.body.appendChild(this.sound);
    this.play = function(){
        this.sound.play();
    }
    this.stop = function(){
        this.sound.pause();
    }
}

*** Deuxième technique, appel

// Il s'agit d'un jeu où un son est produit quand un objet
// entre en collision avec un autre

var myGamePiece;
var myObstacles = [];
var mySound;

function startGame() {
    myGamePiece = new component(30, 30, "red", 10, 120);
    mySound = new sound("bounce.mp3");
    myGameArea.start();
}

function updateGameArea() {
    var x, height, gap, minHeight, maxHeight, minGap, maxGap;
    for (i = 0; i < myObstacles.length; i += 1) {
        if (myGamePiece.crashWith(myObstacles[i])) {
            mySound.play();
            myGameArea.stop();
            return;
        }
    }

...

}

*** Background Music

var myGamePiece;
var myObstacles = [];
var mySound;
var myMusic;

function startGame() {
    myGamePiece = new component(30, 30, "red", 10, 120);
    mySound = new sound("bounce.mp3");
    myMusic = new sound("gametheme.mp3");
    myMusic.play();
    myGameArea.start();
}