Update app.py

app.py

@@ -102,21 +102,21 @@ demucs_models = [
 def roformer_separator(audio, checkpoint_name):
     full_checkpoint_name = roformer_models[checkpoint_name]
     separator.load_model(full_checkpoint_name)
-    output_files = separator.separate(audio)
+    output_files = separator.separate(audio, output_dir="/tmp")
     stem1 = output_files[0]
     stem2 = output_files[1]
     return stem1, stem2
 
 def mdx_vr_separator(audio, checkpoint_name):
     separator.load_model(checkpoint_name)
-    output_files = separator.separate(audio)
+    output_files = separator.separate(audio, output_dir="/tmp")
     stem1 = output_files[0]
     stem2 = output_files[1]
     return stem1, stem2
 
 def demucs_separator(audio, checkpoint_name):
     separator.load_model(checkpoint_name)
-    output_files = separator.separate(audio)
+    output_files = separator.separate(audio, output_dir="/tmp")
     stem1 = output_files[0]
     stem2 = output_files[1]
     stem3 = output_files[2]