Another cool technology emerging from CEATEC 2007:
1 LTD’s directional audio speakers used a mesh of 8 to 20
little speakers and Regaza’s audiovisuak processor solution to effectively transmit audio to specific locations in a room.
This enables many applications, from multilingual audio based on where a person
is sitting in a room, to automotive possibilities where passengers can clearly
listen to only their audio tracks, while the driver only hears traffic and GPS
instructions. Given an effectively optimized room or environment, there are
incredible possibilities for audio targeting solutions.
Auri's Blog 