Justify your choice of model. Highlight how class imbalance was dealt with?

LIP READING DRIVEN DEEP LEARNING APPROACH FOR SPEECH ENHANCEMENT

Kindly read through the pdf attached and provide the points below accordingly:

1. Pre-processing involved: Steps involved in preprocessing.
2. Models used: Description of the models used. Justify your choice of model. Highlight how class imbalance was dealt with?
3. Model Architecture: Model description along with complete architecture diagram. Highlight the detailed design showing the system design with components/modules/parts/layers etc of your project.