For my viedo, go to http://www.youtube.com/watch?v=BVEigneVWMI
From this task, I learnt the importance of a simple and neat solution. Much unlike the normal work I do. I also learnt how hard it is to allow someone to understand your solution.
I face many challenges like the buzzing sound in the background when you talk. Or background noise. Another challenge is I keep mixing up B with D when I say AB or AD. Because of that I had to redo at least 20 times