play audio notification

i have a dumb question...

i put a javascript code to play an audio notification in my asp.net page

<pre lang="Javascript">
<script type="text/javascript">
var soundObject = null;
function PlaySound() {
var playerObj = document.getElementById("playaudio");
playerObj.play();
}
</script>
</pre>

<pre lang="HTML">
<audio id="playaudio"><source src="/sounds/sound.wav" type="audio/wav" /></audio>
</pre>


my question is, is the sound.wav be downloaded to the client and play/execute?

if not, how can i achieve to play the notification to the client?