How to add audio and simple text animation to give more story/ perspective to this animation

Hello,


Thank you for this wonderful animation tutorial/walkthrough. I was wondering if you would make a bonus video on how can we add audio / text effects via blender so that we could give more story to this animation. Could you help to show how to add some audio and text effects in this video series by making some bonus video content please? 


Thanks a lot for your hard work in putting this great series!!