Update app.py

app.py

@@ -320,7 +320,9 @@ def speech_to_text(video_file_path, selected_source_lang, whisper_model, num_spe
         *GPU Utilization: {gpu_utilization}%, GPU Memory: {gpu_memory}MiB.*
         """
         filename, _ = os.path.splitext(video_file_path)
-        output_filename = f"{filename} ({selected_whisper_model}).csv"
+        filename = filename.replace(" ", "_")
+        filename = filename.replace("(", "_").replace(")", "_")
+        output_filename = f"{filename}_{selected_whisper_model}.csv"
         save_path = os.path.join("output", output_filename)
         df_results = pd.DataFrame(objects)
         df_results.to_csv(save_path)