Update app.py

app.py

@@ -4,6 +4,13 @@ from scipy.io.wavfile import write
 
 
 def inference(audio):
+    os.makedirs("out", exist_ok=True)
+    write('test.wav', audio[0], audio[1])
+
+    command = "python3 -m demucs.separate -n mdx_extra_q -d cpu test.wav -o out"
+    process = subprocess.run(command, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+    print("Demucs script output:", process.stdout.decode())
+  
     os.makedirs("out", exist_ok=True)
     write('test.wav', audio[0], audio[1])
     result = os.system("python3 -m demucs.separate -n mdx_extra_q -d cpu test.wav -o out")