It's amazing that despite only having two ears, humans can localize sound from all directions.  Wouldn’t it be exciting to watch a movie, listen to music, or play a video game and hear sound in front, behind, and above you? In this presentation, the methods used by the human auditory system to localize sound will be examined.  Binaural audio will also be introduced, and its use in new technologies such as Dolby Atmos, Apple Spatial Audio, and immersive audio will be discussed.