title: AVAudioPlayer fade volume out
body: <p>I have an AVAudioPlayer playing some audio (duh!)</p>
  
  <p>The audio is initiated when the user presses a button.
  When they release it I want the audio to fade out.</p>
  
  <p>I am using Interface builder...so I am trying to hook up a function on "touch up inside" that fades the audio out over 1 sec then stops.</p>
  
  <p>Any ideas?</p>
  
  <p>Thanks</p>