title: How to play MP3 audio with dynamic URL in HTML5 or JavaScript?
body: <p>In JavaScript or HTML5, how to play MP3 audio with <em>dynamic</em>, rather than <em>static</em>, URL?</p>
  
  <p>Example - the following doesn't work:</p>
  
  <pre><code>&lt;audio controls="controls"&gt;
    &lt;source src="http://translate.google.com/translate_tts?tl=en&amp;q=Hello%2C+World" type="audio/ogg"&gt;
  &lt;/audio&gt;
  </code></pre>
  
  <p>Thanks in advance!</p>