Sound is caused by vibration, something has to be moving to cause sound so when you are hunting sound is very important because it tells you things your eyes are going to miss. Humans can track sounds, we all know that, but how do we track sounds and what would be the best ways to track sounds? It turns you you need some mathematicians to make your code, some engineers to build a very impressive sound chamber and then psychologists and neuroscientists to make sense of the whole thing. Our guest on this episode walks us through it.