diff --git a/asr/sherpa_ncnn_asr.py b/asr/sherpa_ncnn_asr.py
index 4fd2845..9216cb6 100644
--- a/asr/sherpa_ncnn_asr.py
+++ b/asr/sherpa_ncnn_asr.py
@@ -63,18 +63,7 @@ class SherpaNcnnAsr(AsrBase):
         logger.info(f'_recognize_loop')
         print(f'_recognize_loop')
 
-        while self._stop_event.is_set():
-            logger.info(f'_recognize_loop000')
-            self._notify_complete('介绍中国5000年历史文学')
-            logger.info(f'_recognize_loop111')
-            segment_id += 1
-            time.sleep(150)
-            logger.info(f'_recognize_loop222')
-        logger.info(f'_recognize_loop exit')
-
-
-'''
- with sd.InputStream(channels=1, dtype="float32", samplerate=self._sample_rate) as s:
+        with sd.InputStream(channels=1, dtype="float32", samplerate=self._sample_rate) as s:
             while self._stop_event.is_set():
                 samples, _ = s.read(self._samples_per_read)  # a blocking read
                 samples = samples.reshape(-1)
@@ -97,3 +86,13 @@ class SherpaNcnnAsr(AsrBase):
        
 '''
 
+while self._stop_event.is_set():
+    logger.info(f'_recognize_loop000')
+    self._notify_complete('介绍中国5000年历史文学')
+    logger.info(f'_recognize_loop111')
+    segment_id += 1
+    time.sleep(150)
+    logger.info(f'_recognize_loop222')
+logger.info(f'_recognize_loop exit')
+'''
+
diff --git a/nlp/nlp_doubao.py b/nlp/nlp_doubao.py
index 26244ca..b97a4a2 100644
--- a/nlp/nlp_doubao.py
+++ b/nlp/nlp_doubao.py
@@ -80,7 +80,7 @@ class DouBaoHttp:
         }
 
         data = {
-            "model": "ep-20241008152048-fsgzf",
+            "model": "ep-20241207182221-mhhzq",
             "messages": question,
             'stream': True
         }
@@ -93,7 +93,7 @@ class DouBaoHttp:
         self._requesting = True
         logger.info(f'-------dou_bao ask:{question}')
         msg_list = [
-            {"role": "system", "content": "你是测试客服，是由字节跳动开发的 AI 人工智能助手"},
+            {"role": "system", "content": "你是库里，是一个学习小老师，擅长初中历史和数学。"},
             {"role": "user", "content": question}
         ]
         self._response = self.__request(msg_list)