Update app.py

app.py

@@ -239,13 +239,13 @@ def voice_extract_demucs(audio):
     Returns the path of the voice extracted file.
     """
     try:
-        os.makedirs("demucs", exist_ok=True)
-        write('audio_file.wav', audio[0], audio[1])
+        os.makedirs("out_demucs", exist_ok=True)
+    
         cmd = [
             "demucs",
             "--two-stems=vocals",
-            "--out", "demucs",
-            "audio_file.wav"
+            "--out", "out_demucs",
+            audio
         ]
         subprocess.run(cmd, check=True)
         voice_path = os.path.join(".", "demucs", "htdemucs", "audio_file", "vocals.wav")