Edgar Choueiri, a professor of mechanical and aerospace engineering at Princeton University, has developed a way to play true three-dimensional sound recordings over regular loudspeakers, such as those found in televisions and computer laptops.

The filter is designed to work with loudspeakers – not headphones – and can be experienced through standard computer speakers. (Make sure the right and left speakers are on the correct sides.)

Dated 2010; I wonder why we haven’t heard more of this technology.