<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript Toggle (Play/Pause) Sound on Click Event of DOM Element</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>

<button id="player" type="button"
  onclick="javascript:toggleSound();">
  Click to Toggle Sound
</button>
<audio id="audio">
  <source src="Wat_Metta_Buddha_Qualities.mp3" type="audio/mpeg">
Your browser does not support this audio format.
</audio>

<script type="text/javascript">
function toggleSound() {
  var audioElem = document.getElementById('audio');
  if (audioElem.paused)
    audioElem.play();
  else
    audioElem.pause();
}
</script>

</body>
</html>