Update app.py

app.py

@@ -12,6 +12,8 @@ import torch
 import gradio as gr
 import pydub
 
+
+
 from audiocraft.data.audio_utils import convert_audio
 from audiocraft.data.audio import audio_write
 from audiocraft.models import MusicGen
@@ -169,7 +171,7 @@ def inference(audio):
     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)
+    process = sp.run(command, shell=True, stdout=sp.PIPE, stderr=sp.PIPE)
     print("Demucs script output:", process.stdout.decode())
   
     os.makedirs("out", exist_ok=True)