diff --git a/rtcllm/aav.py b/rtcllm/aav.py
index d0f623a..893184c 100644
--- a/rtcllm/aav.py
+++ b/rtcllm/aav.py
@@ -5,12 +5,11 @@ from aiortc import MediaStreamTrack, VideoStreamTrack, AudioStreamTrack
 class MyMediaPlayer(MediaPlayer):
 	pass
 
-class MyTrackBase(MediaStreamTrack):
+class MyTrackBase:
 	def __init__(self, source=None):
-		super().__init__()
 		self.source = source
 		self.set_source_track()
-		print(f'{self.kind=}, {self.__class__.__name__}')
+		print(f'{self.kind=}, {self.__class__.__name__}, {dir(self)}')
 
 	def set_source_track(self):
 		if self.kind == 'audio':
@@ -27,7 +26,7 @@ class MyTrackBase(MediaStreamTrack):
 		self.set_source_track()
 
 	async def recv(self):
-		print(f'{self.__class__.__name__}, {self.source.duration=}, {self.source.time=}')
+		print(f'============{self.__class__.__name__}, {self.source.duration=}, {self.source.time=}')
 		if self.source is None:
 			return None
 		if self.track.readyState != 'live':
@@ -36,8 +35,14 @@ class MyTrackBase(MediaStreamTrack):
 		return f
 
 
-class MyAudioStreamTrack(MyTrackBase):
-	kind = 'audio'
+class MyAudioStreamTrack(MyTrackBase, AudioStreamTrack):
+	def  __init__(self, source=None):
+		AudioStreamTrack.__init__(self)
+		MyTrackBase.__init__(self, source)
+		print(dir(self), self.__class__.__name__)
 
-class MyVideoStreamTrack(MyTrackBase):
-	kind = 'video'
+class MyVideoStreamTrack(MyTrackBase, VideoStreamTrack):
+	def  __init__(self, source=None):
+		VideoStreamTrack.__init__(self)
+		MyTrackBase.__init__(self, source)
+		print(dir(self), self.__class__.__name__)
diff --git a/rtcllm/rtc.py b/rtcllm/rtc.py
index 8d85b38..c69e01c 100644
--- a/rtcllm/rtc.py
+++ b/rtcllm/rtc.py
@@ -41,7 +41,7 @@ async def pc_get_local_candidates(pc, peer):
 	for t in its:
 		for c in  t._connection.local_candidates:
 			if c not in peer.l_candidates:
-				print(f'{c=}, {dir(c)}')
+				# print(f'{c=}, {dir(c)}')
 				c.sdpMid = str(peer.sdp_id)
 				peer.sdp_id += 1
 				peer.l_candidates.append(c)
@@ -97,7 +97,7 @@ class RTCLLM:
 				'sdpMid':candidate.sdpMid,
 				'type': candidate.type
             }
-			print('***********on_icecandidate()', candi)
+			# print('***********on_icecandidate()', candi)
 			await self.ws_send(json.dumps({
 				"type":"iceCandidate",
 				"to":to,
@@ -105,7 +105,7 @@ class RTCLLM:
 			}))
 
 	async def save_onlineList(self, data):
-		print(f'{self}, {type(self)}')
+		# print(f'{self}, {type(self)}')
 		self.onlineList = data.onlineList
 	
 	async def vad_voiceend(self, peer, audio):
@@ -199,7 +199,7 @@ class RTCLLM:
 	async def accept_iceCandidate(self, data):
 		pc = self.get_pc(data)
 		candidate = data.candidate
-		print('accepted candidate=', candidate)
+		# print('accepted candidate=', candidate)
 		"""
 		rtc_candidate = RTCIceCandidate(
 			ip=ip,
@@ -217,7 +217,7 @@ class RTCLLM:
 		rtc_candidate.sdpMid = candidate['sdpMid']
 		rtc_candidate.sdpMLineIndex = candidate['sdpMLineIndex']
 		await pc.addIceCandidate(rtc_candidate)
-		print('addIceCandidate ok')
+		# print('addIceCandidate ok')
 
 	handlers = {
 		'onlineList':save_onlineList,
diff --git a/rtcllm/vad.py b/rtcllm/vad.py
index 0c94b50..e74178c 100644
--- a/rtcllm/vad.py
+++ b/rtcllm/vad.py
@@ -15,7 +15,6 @@ class AudioTrackVad(MediaStreamTrack):
 	def __init__(self, track, stage=3, onvoiceend=None):
 		super().__init__()
 		self.track = track
-		print(dir(track), 'AudioTrackVad.__init__()')
 		self.onvoiceend = onvoiceend
 		self.vad = webrtcvad.Vad(stage)
 		# self.sample_rate = self.track.getSettings().sampleRate
@@ -56,7 +55,7 @@ class AudioTrackVad(MediaStreamTrack):
 		for f in frames:
 			if self.debug:
 				self.debug = False
-				print(f'{type(f)}, {f.samples=}, {f.format.bytes=}, {f.sample_rate=}, {f.format=}, {f.is_corrupt=}, {f.layout=}, {f.planes=}, {f.side_data=}')
+				# print(f'{type(f)}, {f.samples=}, {f.format.bytes=}, {f.sample_rate=}, {f.format=}, {f.is_corrupt=}, {f.layout=}, {f.planes=}, {f.side_data=}')
 			try:
 				await self.vad_check(f)
 			except Exception as e:
@@ -92,7 +91,7 @@ class AudioTrackVad(MediaStreamTrack):
 				for f, s in self.ring_buffer:
 					self.voiced_frames.append(f)
 				self.ring_buffer.clear()
-				print('start voice .....', len(self.voiced_frames))
+				# print('start voice .....', len(self.voiced_frames))
 		else:
 			# We're in the TRIGGERED state, so collect the audio data
 			# and add it to the ring buffer.
@@ -131,7 +130,7 @@ class AudioTrackVad(MediaStreamTrack):
 		"""
 		audio_data = self.to_mono16000_data()
 		path = temp_file(suffix='.wav')
-		print(f'temp_file={path}')
+		# print(f'temp_file={path}')
 
 		with contextlib.closing(wave.open(path, 'wb')) as wf:
 			wf.setnchannels(1)
@@ -139,8 +138,8 @@ class AudioTrackVad(MediaStreamTrack):
 			wf.setframerate(16000)
 			wf.writeframes(audio_data)
 		
-		print('************wrote*******')
+		# print('************wrote*******')
 		if self.onvoiceend:
 			await self.onvoiceend(path)
-		print('************over*******')
+		# print('************over*******')