what is the best hyperparameters setup for Stacked Time Distributed 2D CNN - LSTM?

Hi,
    I have tried to train Stacked Time Distributed 2D CNN-LSTM model on RAVDESS database by using default hyperparameters.
But I can't reproduce the result(acc=94%) reported by you. Could you give me some cues to setup the best hyperparameters for the model?
   Thanks a lot!