Replace all links to audio files with <audio> tags

gistfile1.html

<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.9.0/jquery.min.js"></script>
<script>
  $(function() {
    var a = document.createElement('audio');
    if (!(a.canPlayType && a.canPlayType('audio/mpeg;').replace(/no/, ''))) return;

    $("a").each(function() {
      if (!this.href.match(/\.(mp3|mp4|m4a)$/)) return;

      var audio = $('<audio/>').attr({
        src: this.href,
        controls: 'controls'
      });

      $(this).replaceWith(audio);
    });
  });
</script>