Update speech_api.py

speech_api.py

@@ -56,7 +56,7 @@ async def text_to_speech(request: TTSRequest):
         raise HTTPException(status_code=500, detail=str(e))
 
 @router.post("/asr")
-async def speech_to_text(file: UploadFile = File(...), source_language: str = "ml"):
+async def speech_to_text(file: UploadFile = File(...), source_language: str = "en"):
     try:
         audio_content = await file.read()
         asr_result = client.asr(audio_content, source_language=source_language)