how does SCListener work?
<p>How would I go about using Stephen Celis' fantastic SCListener singleton? </p>

<p>(<a href="http://stephencelis.com/2009/03/02/now-i-just-need-an-audience.html" rel="nofollow">http://stephencelis.com/2009/03/02/now-i-just-need-an-audience.html</a>)</p>

<p>I would like to start with something incredibly simple.. like display the input volume in a textview or just display a UIImage when the listener detects something. </p>

<p>Any help would be greatly appreciated!</p>

<p>Thanks!</p>
