Update app.py

app.py

@@ -24,7 +24,7 @@ def score_mic(test_file, score_list_nis):
     if score_list_nis is not None:
         score_list += score_list_nis       
     mySpeechScore = SpeechScore(score_list)  
-    scores = mySpeechScore(test_path=test_file, reference_path=ref_file, window=None, score_rate=16000, return_mean=False)
+    scores = mySpeechScore(test_path=test_file, reference_path=None, window=None, score_rate=16000, return_mean=False)
     return scores
 
 demo = gr.Blocks()