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“A snap of a finger, a handful of scattered microphones and a computer algorithm are all it takes to create an accurate microphonethree-dimensional map of a room, say Swiss and US researchers. The method, described recently in the US journal the Proceedings of the National Academy of Sciences, measured the distance between echoes to create maps of both a university lecture room and a cathedral alcove. The microphones did not need to be placed in precise locations in order to pick up the original sound and its echoes.

The lags between the sounds and the echoes were used by the algorithm (mathematical equation) to calculate the distance from the microphones, walls and sound source, and recreate the digital 3D shape of the room.

Architects could use this to design rooms..” Read more here


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