Update app.py

app.py

@@ -5,7 +5,7 @@ from scipy.io.wavfile import write
 def inference(audio):
   os.makedirs("out", exist_ok=True)
   write('test.wav', audio[0], audio[1])
-  os.system("python3 -m demucs.separate -n demucs48_hq -d cpu test.wav -o out")
+  os.system("python3 -m demucs.separate -n mdx_extra_q -d cpu test.wav -o out")
   return "./out/demucs48_hq/test/vocals.wav","./out/demucs48_hq/test/bass.wav",\
 "./out/demucs48_hq/test/drums.wav","./out/demucs48_hq/test/other.wav"