Dreamweaver behaviors

Are you using jQuery? 

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

<audio controls id="aH">
  <source src="http://www.w3schools.com/html/horse.ogg" type="audio/ogg">
  <source src="http://www.w3schools.com/html/horse.mp3" type="audio/mpeg">
Your browser does not support the audio element.
</audio>
<a href="anotherpage.html" class="soundBefore">CLICK</a>
{load jquery before closing HTML tag}
<script>
     $('.soundBefore').click(function(e){
          e.preventDefault();
          $('#aH').play();
          setTimeout(function(){
               window.location.href = $(this).attr('href');
               },3000);// 3 seconds
               }
          );
</script>

Untested, but it should work.  Set the timeout to however long the audio is.

HTH,

^ _ ^