Update app_parallel.py

app_parallel.py

@@ -268,6 +268,7 @@ def split_audio(audio_path, chunk_duration):
 
 # Generator function to yield chunk results as they are processed
 def generate_chunks(audio_chunks, preprocessed_data, args):
+    global TEMP_DIR
     future_to_chunk = {executor.submit(process_chunk, chunk[1], preprocessed_data, args): chunk[0] for chunk in audio_chunks}
     
     try: