Update app.py

app.py

@@ -8,7 +8,7 @@ def inference(audio):
   os.makedirs("out", exist_ok=True)
   #oldext = os.path.splitext(audio)[1]
   #os.rename(audio.name, "audio" + oldext)
-  write('test.wav', audio[1], audio[0])
+  write('test.wav', audio[0], audio[1])
   os.system("python3 -m demucs.separate -n demucs48_hq -d cpu test.wav -o out")
   #audioname = Path(audio.name).stem
   return "./out/demucs48_hq/audio/vocals.wav"