Update subgen.py

subgen.py

@@ -76,7 +76,7 @@ def update_env_variables():
     whisper_model = os.getenv('WHISPER_MODEL', 'large-v3')
     whisper_threads = int(os.getenv('WHISPER_THREADS', 10))
     concurrent_transcriptions = int(os.getenv('CONCURRENT_TRANSCRIPTIONS', 5))
-    transcribe_device = os.getenv('TRANSCRIBE_DEVICE', 'cuda')
+    transcribe_device = os.getenv('TRANSCRIBE_DEVICE', 'CPU')
     procaddedmedia = convert_to_bool(os.getenv('PROCADDEDMEDIA', True))
     procmediaonplay = convert_to_bool(os.getenv('PROCMEDIAONPLAY', True))
     namesublang = os.getenv('NAMESUBLANG', 'aa')