Sounds stop playing after putting the device into sleep mode - iOS.

Hi,

It appears that for each version of AIR from 4 till 15 beta, a sound could not be played when the device is put into sleep mode after pressing the POWER button.

I'm experiencing the following issue on ios 7 devices(ipad air, iphone 5). I've created a simple app - an infinite timer which plays a short sound(~3 sec long) in every 4 sec. After pressing the POWER button the sound stops playing. When the app is back into foreground, after a few seconds the
sound's playback is restored. The app sounds are not interrupted when it is put into background with the HOME button.

Here is the src code:

package
{
  import flash.display.Sprite;
  import flash.events.TimerEvent;
  import flash.media.Sound;
  import flash.utils.Timer;
  import flash.desktop.NativeApplication

  public class TestSound extends Sprite
  {
       [Embed(source="../assets/sounds/sport_air_horn_reverb.mp3")]
       public static var SoundHorn:Class

       public function TestSound()
       {
            NativeApplication.nativeApplication.executeInBackground = true;

            const sound:Sound = new SoundHorn()
            const timer:Timer = new Timer(4000)
            timer.addEventListener(TimerEvent.TIMER, function(e:TimerEvent):void {
                 trace('play horn')
                 sound.play()
            } )
            timer.start()
       }
  }
}

I've enabled background execution as you can see and configured the info additions as so:

<key>UIBackgroundModes</key> <array>   <string>audio</string> </array>