How 3D sound works

This video describes how our brain picks up sound around us. Also discussing how we could make that real time experience in digitally using two speaker set up. Some of the techniques use in this 3D sounds are really interesting. It identifies the information about the head position related to the sound source. Unlike surround sounds, 3D sound can produce the affect that feels sound source is in above or below the person who’s experiencing the affect.
Similar to 3D sound affect 3D vision is also another real time experience technology has built in to 3D televisions. You can see how it works in this video.