Crosstalk Filter
I found this interesting video today about a guy called Edgar Choueiri at Princeton University who's developed a crosstalk filter to attempt to recreate 3D sound from two speakers in a room. It not perfect in any sense of the word but it seems to be a step in the right direction.
Check it out: http://www.youtube.com/watch?v=SQmQD27uCt0
Check it out: http://www.youtube.com/watch?v=SQmQD27uCt0