diff --git a/human/audio_inference_handler.py b/human/audio_inference_handler.py
index 5552729..1ae9283 100644
--- a/human/audio_inference_handler.py
+++ b/human/audio_inference_handler.py
@@ -21,7 +21,7 @@ class AudioInferenceHandler(AudioHandler):
         super().__init__(context, handler)
 
         self._mal_queue = Queue()
-        self._audio_queue = SyncQueue(context.render_batch)
+        self._audio_queue = SyncQueue(context.batch_size * 2)
 
         self._exit_event = Event()
         self._run_thread = Thread(target=self.__on_run)
@@ -34,6 +34,7 @@ class AudioInferenceHandler(AudioHandler):
             self._mal_queue.put(stream)
         elif type_ == 0:
             self._audio_queue.put(stream)
+        print('AudioInferenceHandler on_handle', type_)
 
     def on_message(self, message):
         super().on_message(message)
@@ -60,7 +61,7 @@ class AudioInferenceHandler(AudioHandler):
                 start_time = time.perf_counter()
                 batch_size = self._context.batch_size
                 try:
-                    mel_batch = self._mal_queue.get(block=True, timeout=0.1)
+                    mel_batch = self._mal_queue.get(block=True, timeout=1)
                 except queue.Empty:
                     continue
 
@@ -85,6 +86,7 @@ class AudioInferenceHandler(AudioHandler):
                         face = face_list_cycle[idx]
                         img_batch.append(face)
 
+                    print('orign img_batch:', len(img_batch), 'origin mel_batch:', len(mel_batch))
                     img_batch = np.asarray(img_batch)
                     mel_batch = np.asarray(mel_batch)
                     img_masked = img_batch.copy()
@@ -96,7 +98,7 @@ class AudioInferenceHandler(AudioHandler):
 
                     img_batch = torch.FloatTensor(np.transpose(img_batch, (0, 3, 1, 2))).to(device)
                     mel_batch = torch.FloatTensor(np.transpose(mel_batch, (0, 3, 1, 2))).to(device)
-
+                    print('img_batch:', img_batch.shape, 'mel_batch:', mel_batch.shape)
                     with torch.no_grad():
                         pred = model(mel_batch, img_batch)
 
diff --git a/human/audio_mal_handler.py b/human/audio_mal_handler.py
index a7dc094..ad4c50a 100644
--- a/human/audio_mal_handler.py
+++ b/human/audio_mal_handler.py
@@ -18,7 +18,7 @@ class AudioMalHandler(AudioHandler):
     def __init__(self, context, handler):
         super().__init__(context, handler)
 
-        self._queue = SyncQueue(context.render_batch)
+        self._queue = SyncQueue(context.batch_size)
         self._exit_event = Event()
         self._thread = Thread(target=self._on_run)
         self._exit_event.set()
@@ -32,6 +32,7 @@ class AudioMalHandler(AudioHandler):
         super().on_message(message)
 
     def on_handle(self, stream, index):
+        print('AudioMalHandler on_handle', index)
         self._queue.put(stream)
 
     def _on_run(self):
@@ -51,12 +52,13 @@ class AudioMalHandler(AudioHandler):
         if len(self.frames) <= self._context.stride_left_size + self._context.stride_right_size:
             return
 
+        print('AudioMalHandler _run_step')
         inputs = np.concatenate(self.frames)  # [N * chunk]
         mel = melspectrogram(inputs)
         # print(mel.shape[0],mel.shape,len(mel[0]),len(self.frames))
         # cut off stride
         left = max(0, self._context.stride_left_size * 80 / 50)
-        right = min(len(mel[0]), len(mel[0]) - self._context.stride_right_size * 80 / 50)
+        # right = min(len(mel[0]), len(mel[0]) - self._context.stride_right_size * 80 / 50)
         mel_idx_multiplier = 80. * 2 / self._context.fps
         mel_step_size = 16
         i = 0
@@ -76,12 +78,15 @@ class AudioMalHandler(AudioHandler):
 
     def get_audio_frame(self):
         try:
-            frame = self._queue.get(block=True, timeout=0.01)
+            frame = self._queue.get()
             type_ = 0
+            if frame is None:
+                frame = np.zeros(self.chunk, dtype=np.float32)
+                type_ = 1
         except queue.Empty:
             frame = np.zeros(self.chunk, dtype=np.float32)
             type_ = 1
-
+        print('AudioMalHandler get_audio_frame type:', type_)
         return frame, type_
 
     def stop(self):
diff --git a/render/base_render.py b/render/base_render.py
index 9e62ddc..af54066 100644
--- a/render/base_render.py
+++ b/render/base_render.py
@@ -16,7 +16,7 @@ class BaseRender(ABC):
         self._context = context
         self._type = type_
         self._delay = delay
-        self._queue = SyncQueue(context.render_batch)
+        self._queue = SyncQueue(context.batch_size)
         self._exit_event = Event()
         self._thread = Thread(target=self._on_run)
         self._exit_event.set()
diff --git a/render/video_render.py b/render/video_render.py
index 27158f8..1476316 100644
--- a/render/video_render.py
+++ b/render/video_render.py
@@ -20,7 +20,10 @@ class VideoRender(BaseRender):
     def _run_step(self):
         while self._exit_event.is_set():
             try:
-                frame, ps = self._queue.get(block=True, timeout=0.02)
+                value = self._queue.get()
+                if value is None:
+                    return
+                frame, ps = value
                 res_frame, idx, type_ = frame
             except Empty:
                 return
@@ -45,7 +48,7 @@ class VideoRender(BaseRender):
                 self._diff_avg_count = 0
 
             print('video render:', ps, '  ', clock_time, '  ', time_difference,
-                  'get face', self._queue.qsize(), self._diff_avg_count)
+                  'get face', self._queue.size(), self._diff_avg_count)
 
             if type_ == 0:
                 combine_frame = self._context.frame_list_cycle[idx]
diff --git a/render/voice_render.py b/render/voice_render.py
index 53cd248..a62d07f 100644
--- a/render/voice_render.py
+++ b/render/voice_render.py
@@ -19,11 +19,14 @@ class VoiceRender(BaseRender):
         super().__init__(play_clock, context, 'Voice')
 
     def is_full(self):
-        return self._queue.qsize() >= self._context.render_batch * 2
+        return self._queue.size() >= self._context.render_batch * 2
 
     def _run_step(self):
         try:
-            audio_frames, ps = self._queue.get(block=True, timeout=0.01)
+            value = self._queue.get()
+            if value is None:
+                return
+            audio_frames, ps = value
             # print('voice render queue size', self._queue.qsize())
         except Empty:
             self._context.notify({'msg_id':  MessageType.Video_Render_Queue_Empty})
@@ -37,9 +40,9 @@ class VoiceRender(BaseRender):
             self._is_empty = False
 
         status = MessageType.Video_Render_Queue_Not_Empty
-        if self._queue.qsize() < self._context.render_batch:
+        if self._queue.size() < self._context.render_batch:
             status = MessageType.Video_Render_Queue_Empty
-        elif self._queue.qsize() >= self._context.render_batch * 2:
+        elif self._queue.size() >= self._context.render_batch * 2:
             status = MessageType.Video_Render_Queue_Full
         self._context.notify({'msg_id': status})
 
diff --git a/test/test_tts_only.py b/test/test_tts_only.py
index b6bf2da..61caad8 100644
--- a/test/test_tts_only.py
+++ b/test/test_tts_only.py
@@ -2,12 +2,12 @@
 
 import time
 
-from tts import TTSEdge, TTSAudioSaveHandle
+from tts import TTSEdge, TTSAudioSaveHandle, TTSEdgeHttp
 
 
 def main():
-    handle = TTSAudioSaveHandle()
-    tts = TTSEdge(handle)
+    handle = TTSAudioSaveHandle(None, None)
+    tts = TTSEdgeHttp(handle)
     tts.message('你好，')
     tts.message('请问有什么可以帮到您，')
     tts.message('很高兴为您服务。')
diff --git a/tts/tts_base.py b/tts/tts_base.py
index 9cebe93..3fede1c 100644
--- a/tts/tts_base.py
+++ b/tts/tts_base.py
@@ -12,7 +12,7 @@ logger = logging.getLogger(__name__)
 class TTSBase(NLPCallback):
     def __init__(self, handle):
         self._handle = handle
-        self._message_queue = AsyncTaskQueue(5)
+        self._message_queue = AsyncTaskQueue(1)
 
     @property
     def handle(self):
diff --git a/tts/tts_edge_http.py b/tts/tts_edge_http.py
index 1114269..e4b5e2d 100644
--- a/tts/tts_edge_http.py
+++ b/tts/tts_edge_http.py
@@ -21,7 +21,7 @@ class TTSEdgeHttp(TTSBase):
         logger.info(f"TTSEdge init, {voice}")
 
     async def _on_request(self, txt: str):
-        print('_on_request, txt')
+        print('TTSEdgeHttp, _on_request, txt:', txt)
         data = {
             "model": "tts-1",
             "input": txt,
@@ -31,6 +31,7 @@ class TTSEdgeHttp(TTSBase):
         }
         async with aiohttp.ClientSession() as session:
             async with session.post(self._url, json=data) as response:
+                print('TTSEdgeHttp, _on_request, response:', response)
                 if response.status == 200:
                     stream = BytesIO(await response.read())
                     return stream
@@ -43,7 +44,7 @@ class TTSEdgeHttp(TTSBase):
         try:
             stream.seek(0)
             byte_stream = self.__create_bytes_stream(stream)
-            print('-------tts start push chunk')
+            print('-------tts start push chunk', index)
             self._handle.on_handle(byte_stream, index)
             stream.seek(0)
             stream.truncate()
diff --git a/utils/sync_queue.py b/utils/sync_queue.py
index 934ad09..ddb88b0 100644
--- a/utils/sync_queue.py
+++ b/utils/sync_queue.py
@@ -3,20 +3,24 @@
 import threading
 from queue import Queue
 
-
+'''
 class SyncQueue:
     def __init__(self, maxsize):
         self._queue = Queue(maxsize)
+        # self._queue = Queue()
         self._condition = threading.Condition()
 
     def put(self, item):
+        # self._queue.put(item)
         with self._condition:
             while self._queue.full():
+                print('put wait')
                 self._condition.wait()
             self._queue.put(item)
             self._condition.notify()
 
     def get(self):
+        # return self._queue.get(block=True, timeout=0.01)
         with self._condition:
             while self._queue.empty():
                 self._condition.wait()
@@ -25,11 +29,29 @@ class SyncQueue:
             return item
 
     def clear(self):
+        # self._queue.queue.clear()
         with self._condition:
             while not self._queue.empty():
-                self._queue.get()
-                self._queue.task_done()
+                self._queue.queue.clear()
             self._condition.notify_all()
 
     def size(self):
         return self._queue.qsize()
+'''
+
+
+class SyncQueue:
+    def __init__(self, maxsize):
+        self._queue = Queue()
+
+    def put(self, item):
+        self._queue.put(item)
+
+    def get(self):
+        return self._queue.get(block=True, timeout=0.2)
+
+    def clear(self):
+        self._queue.queue.clear()
+
+    def size(self):
+        return self._queue.qsize()