moved model instantiation outside of function

app.py

@@ -114,6 +114,9 @@ def convert_audio_to_mono_16khz(input_path, output_path):
         print(f"Audio converted successfully to mono, 16kHz at: {output_path}")
     except Exception as e:
         print(f"Error converting audio: {e}")
+
+asr_model = nemo_asr.models.ASRModel.from_pretrained(model_name="nvidia/parakeet-tdt-0.6b-v3")
+
 @spaces.GPU
 def subtitle_video(input_file):
 # ------------------------------------------------------------------------------------------------------------------------------
@@ -147,7 +150,7 @@ def subtitle_video(input_file):
     my_clip.audio.write_audiofile(f'experiments/{name}/audio_file.wav', codec="mp3")
 
     # Instantiate parakeet model 
-    model = nemo_asr.models.ASRModel.from_pretrained(model_name="nvidia/parakeet-tdt-0.6b-v3")
+    model = asr_model
 
     # convert to format parakeet can interpret
     convert_audio_to_mono_16khz(f'experiments/{name}/audio_file.wav', f'experiments/{name}/audio_file.wav')