Update app.py

app.py

@@ -6,7 +6,7 @@ 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 htdemucs --two-stems=vocals -d cpu test.wav -o out")
+  os.system("python3 -m demucs.separate -n htdemucs --two-stems=vocals test.wav -o out")
   return "./out/htdemucs/test/vocals.wav","./out/htdemucs/test/no_vocals.wav"
     
 title = "Demucs Music Source Separation (v4)"