update:抽离公共方法save_audio_to_file到父类

main/xiaozhi-server/core/providers/asr/base.py

@@ -1,7 +1,10 @@
-from abc import ABC, abstractmethod
-from typing import Optional, Tuple, List
+import os
+import uuid
+import wave
 import opuslib_next
+from abc import ABC, abstractmethod
 from config.logger import setup_logging
+from typing import Optional, Tuple, List
 
 TAG = __name__
 logger = setup_logging()
@@ -11,10 +14,19 @@ class ASRProviderBase(ABC):
     def __init__(self):
         self.audio_format = "opus"
 
-    @abstractmethod
     def save_audio_to_file(self, pcm_data: List[bytes], session_id: str) -> str:
         """PCM数据保存为WAV文件"""
-        pass
+        module_name = __name__.split(".")[-1]
+        file_name = f"asr_{module_name}_{session_id}_{uuid.uuid4()}.wav"
+        file_path = os.path.join(self.output_dir, file_name)
+
+        with wave.open(file_path, "wb") as wf:
+            wf.setnchannels(1)
+            wf.setsampwidth(2)  # 2 bytes = 16-bit
+            wf.setframerate(16000)
+            wf.writeframes(b"".join(pcm_data))
+
+        return file_path
 
     @abstractmethod
     async def speech_to_text(