So, here's another DIY Let me start by putting the cart before the horse. I shall start with the credits. This project was done while I was working on my Electronics Design Lab, along with my friends, Srujan M and Indrasen Bhattacharya. The work would not have been possible without the generous help received from the staff at Wadhwani Electronics Laboratory, who ensured that the only thing we did right was to leave the lab on time. This project would also not have been possible without the guidance of our dear and learned professors. It would probably have just about become additional dead weight on the head. Enough with the credits, now, I need to dive right into noise cancellation and how it works. The essence of sound is a pressure wave. The pressure wave, when incident on the eardrum sets into motion the complex mechanisms inside the ear, and after a long path, rather like the Cog advertisement, ends up making some nerves vibrate. The nerves send electrical signals to the b...