text: function createAudio (src) {
    try {
      var a = new Audio (src);
      a.volume = 0.1; // lets be real quiet please
      return a;
    } catch (e) {
      return null;
    }
  }
  var pongSounds = {
    files: {
      ping: createAudio ('/ping.wav'),
      pong: createAudio ('/pong.wav'),
      goal: createAudio ('/goal.wav'),
    },
    play: function (name) {
      if (this.files[name]) this.files[name].play ();
    },
    ping: function () {
      this.play ('ping');
    },
    pong: function () {
      this.play ('pong');
    },
    goal: function () {
      this.play ('goal');
    },
  };
  