title: Left/Right channel balance stereo is not working for Apple Airpods(Bluetooth)
body: <p>I'm using AudioKit to create an experimental iOS audio application. 
  Currently, I am trying to record and playback audio on only one speaker (Left/Right Stereo) at a time, But it is playing on both speakers after setting left/right stereo channel(Slider balance control from Settings > General > Accessibility > slider Left/Right channel).</p>
  
  <p>Actually, I need to record and playback audio on left or right Apple Airpods headphone only. When left/right channel settings are changed on Accessibility.</p>
  
  <pre><code>   AKSettings.bufferLength = .medium
     do {
         try AKSettings.setSession(category: .playAndRecord, with: .allowBluetoothA2DP)
     } catch {
         AKLog("Could not set session category.")
     }
  
      AKSettings.defaultToSpeaker = true
      AKSettings.useBluetooth = true
      // Patching
      inputPlot.node = mic
      micMixer = AKMixer(mic)
      micBooster = AKBooster(micMixer)
  
     // Will set the level of microphone monitoring
      micBooster.gain = 1
     recorder = try? AKNodeRecorder(node: micMixer)
  
      if let file = recorder.audioFile {
  
          player = try? AKAudioPlayer(file: file)
     }
  
      player.looping = true
      player.completionHandler = playingEnded
  
      moogLadder = AKMoogLadder(player)
  
      mainMixer = AKMixer(moogLadder, micBooster)
  
      AudioKit.output = mainMixer
  
      AudioKit.start()
  </code></pre>