Update app.py

app.py

@@ -25,6 +25,7 @@ input_file = os.path.join(os.path.dirname(__file__), "test1.mp3")
 output_file = os.path.join(os.path.dirname(__file__)
 
 # preprocess and crop audio file
+                           
 def audio_preprocess():
     # separate music and vocal
     separator = Separator('spleeter:2stems')