添加播放状态检测避免回声录制

- 播放时暂停录音处理
- 显示播放状态提示
- 防止播放的音频被重新录制
- 避免产生回声问题

energy_based_recorder.py

@@ -46,6 +46,9 @@ class EnergyBasedRecorder:
         self.pre_record_buffer = []  # 预录音缓冲区
         self.pre_record_max_frames = int(self.pre_record_duration * self.RATE / self.CHUNK_SIZE)  # 最大预录音帧数
         
+        # 播放状态
+        self.is_playing = False  # 是否正在播放
+        
         # 性能监控
         self.frame_count = 0
         self.start_time = time.time()
@@ -155,6 +158,9 @@ class EnergyBasedRecorder:
     def play_audio(self, filename):
         """播放音频文件"""
         try:
+            # 设置播放状态
+            self.is_playing = True
+            
             with wave.open(filename, 'rb') as wf:
                 channels = wf.getnchannels()
                 width = wf.getsampwidth()
@@ -194,6 +200,9 @@ class EnergyBasedRecorder:
         except Exception as e:
             print(f"❌ 播放失败: {e}")
             self.play_with_system_player(filename)
+        finally:
+            # 恢复播放状态
+            self.is_playing = False
     
     def play_with_system_player(self, filename):
         """使用系统播放器播放音频"""
@@ -312,6 +321,14 @@ class EnergyBasedRecorder:
                 if len(data) == 0:
                     continue
                 
+                # 如果正在播放，跳过音频处理
+                if self.is_playing:
+                    # 显示播放状态
+                    status = "🔊 播放中... 跳过录音处理"
+                    print(f"\r{status}", end='', flush=True)
+                    time.sleep(0.1)  # 播放时增加延迟减少CPU使用
+                    continue
+                
                 # 计算能量和零交叉率
                 energy = self.calculate_energy(data)
                 zcr = self.calculate_zero_crossing_rate(data)
@@ -343,7 +360,6 @@ class EnergyBasedRecorder:
                         self.stop_recording()
                     
                     # 显示录音状态（包含预录音信息）
-                    pre_duration = len(self.pre_record_buffer) * self.CHUNK_SIZE / self.RATE
                     bg_energy = np.median(self.energy_history[-10:]) if len(self.energy_history) >= 10 else 0
                     status = f"录音中... {recording_duration:.1f}s | 能量: {energy:.0f} | ZCR: {zcr:.0f} | 背景: {bg_energy:.0f}"
                     print(f"\r{status}", end='', flush=True)