protected function adHandler(event:AdEvent):void 
  		{ 
  			trace("receive ad"); 
  		}

 
  package  { 
            import flash.display.Sprite; 
            import flash.media.Microphone; 
            import flash.media.Sound; 
            import flash.media.SoundChannel; 
            import flash.events.MouseEvent; 
            import flash.events.SampleDataEvent; 
            import flash.utils.ByteArray; 
            import flash.events.Event; 
            import flash.media.SoundMixer; 
            import flash.media.AudioPlaybackMode; 
    
            public class RecTest extends Sprite { 
    
                      var mic:Microphone; 
                      var s:Sound; 
                      var sc:SoundChannel; 
                      var nowRecording:Boolean = false; 
                      var nowPlaying:Boolean = false; 
                      var recordedBytes:ByteArray; 
    
                      public function RecTest() { 
    
                                SoundMixer.audioPlaybackMode = AudioPlaybackMode.MEDIA; 
    
                                mic = Microphone.getMicrophone(); 
                                mic.rate = 44; 
                                mic.gain = 70; 
                                mic.setSilenceLevel(5); 
    
                                s = new Sound(); 
    
                                recordedBytes = new ByteArray(); 
    
                                recorder.addEventListener(MouseEvent.CLICK, record); 
                                 player.addEventListener(MouseEvent.CLICK, playBack); 
                      } 
                       
    
    
                      function record(e:MouseEvent) { 
                                if (!nowRecording) { 
                                          trace("recording"); 
                                          recordedBytes.clear(); 
                                          mic.addEventListener(SampleDataEvent.SAMPLE_DATA, getMicAudio); 
                                          nowRecording = true; 
                                } else { 
                                          trace("recording stopped"); 
                                          mic.removeEventListener(SampleDataEvent.SAMPLE_DATA, getMicAudio); 
                                          nowRecording = false; 
                                } 
                      } 
    
                      function getMicAudio(e:SampleDataEvent) { 
                                recordedBytes.writeBytes(e.data); 
                      } 
    
                      function playBack(e:MouseEvent) { 
                                if (!nowPlaying) { 
                                          trace("playing"); 
                                          recordedBytes.position = 0; 
                                          s.addEventListener(SampleDataEvent.SAMPLE_DATA, playAudio); 
                                          sc = s.play(); 
                                          sc.addEventListener(Event.SOUND_COMPLETE, stopPlayback, false, 0, true); 
                                          nowPlaying = true; 
                                } else { 
                                          sc.stop(); 
                                          stopPlayback(); 
                                } 
                      } 
    
                      function stopPlayback(e:Event=null) { 
                                trace("playing stopped"); 
                                s.removeEventListener(SampleDataEvent.SAMPLE_DATA, playAudio); 
                                nowPlaying = false; 
                      } 
    
                      function playAudio(e:SampleDataEvent) { 
                                for (var i:int = 0; i < 8092 && recordedBytes.bytesAvailable > 0; i++) { 
                                          var sample:Number = recordedBytes.readFloat(); 
                                          e.data.writeFloat(sample); 
                                          e.data.writeFloat(sample); 
                                } 
                      } 
            } 
    
  }