Update app.py

app.py

@@ -78,7 +78,7 @@ async def transcribe(websocket: WebSocket):
             vad_parameters=dict(
                 min_silence_duration_ms=500,
                 speech_pad_ms=200,
-                threshold=0.1
+                threshold=0.2,
             ),
         )
 
@@ -131,4 +131,4 @@ async def transcribe(websocket: WebSocket):
         try:
             await websocket.close()
         except Exception:
-            pass
+            pass