Play/Pause Button HTML5 Audio

You can put an id to the <i> tag and assign the fa fa-pause class when change of state:

<a href="javascript:void(0)" class="btn btn-default" data-toggle="tooltip" title="Preview" onclick="aud_play_pause()"><i id="stateicon" class="fa fa-play"></i></a>

<script>
  function aud_play_pause() {
    var myAudio = document.getElementById("myTune");
    if (myAudio.paused) {
      $('#stateicon').removeClass('fa fa-play');
      $('#stateicon').addClass('fa fa-pause');
      myAudio.play();
    } else {
      $('#stateicon').removeClass('fa fa-pause');
      $('#stateicon').addClass('fa fa-play');
      myAudio.pause();
   }
 }

Hope this helps

Give this a whirl:

function aud_play_pause() {
  var myAudio = document.getElementById("myTune");
  if (myAudio.paused) {
    myAudio.play();
  } else {
    myAudio.pause();
  }
}

<audio id="myTune" src="http://www.rachelgallen.com/HappyBirthday.mp3"></audio>


<button type="button"  onclick="aud_play_pause()">Play/Pause</button>

Here You have version for multiple instances of player

HTML

<a href="javascript:void(0)" onclick="aud_play_pause(this)">
    <i class="control icon-play"></i>
    <audio class="xnine-player" src="/path/to/file#1.mp3" preload="auto"></audio>
</a>

<a href="javascript:void(0)" onclick="aud_play_pause(this)">
    <i class="control icon-play"></i>
    <audio class="xnine-player" src="/path/to/file#2.mp3" preload="auto"></audio>
</a>

JAVASCRIPT

<script>
    function aud_play_pause(object) {
        var myAudio = object.querySelector(".xnine-player");
        var myIcon = object.querySelector(".control");
        if (myAudio.paused) {
            myIcon.className = "control icon-pause";
            myAudio.play();
        } else {
            myIcon.className = "control icon-play";
            myAudio.pause();
        }
    }
</script>

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