Update app.py

app.py

@@ -72,7 +72,7 @@ def message_and_history(audio_file,input, history, api_key):
     output_text = api_calling(audio_file,input,api_key)
     
     if len(input) == 0:
-        input_text = "Speech from the video."
+        input = "Speech from the video."
         history.append((input, output_text))
     else:
         history.append((input, output_text))