file_get_contents prints text not sound
<p>I'm trying to get a sound file to be printed on a php page. I'm using the code below. I thought when I run this script it would have shown a sound file to download but it prints some text. What do you think I should do to fix this?</p>

<pre><code>&lt;?php
$mylanguage=$_GET["mylanguage"];
$soundtext=$_GET["soundtext"];

echo stream_get_contents("http://api.microsofttranslator.com/V2/http.svc/Speak?appId=9CF5D9435A249BB484EC6DB50FFFB94C6733DEFB&amp;language=$mylanguage&amp;format=audio/wav&amp;text=$soundtext");
?&gt;
</code></pre>
