title: Is there a way to play a sound note in only one ear of headphone in swift 2.0 using AVFoundation?
body: <p>I have created a game (Swift 2.0, iOS9) in which a background music is played continuously and various other sounds are played based on user interaction.</p>
  
  <p>But now, I would like to play a certain sound only in the right or left ear-phone, if the player is using head phones.
  Is this possible using AVFoundation? </p>