Update app.py

app.py

@@ -461,7 +461,7 @@ def transcribe_audio_stream():
     duration = 5  
     device_index = 1
     
-    with sd.InputStream(samplerate=samplerate, channels=1, callback=audio_callback):
+    with sd.InputStream(samplerate=samplerate, channels=1, callback=audio_callback, device=device_index):
         st.write("Listening... Speak into the microphone.")
 
         while True: