Echolocation by Smartphone Possible
A burst of sound and a pair of microphones may be enough to map simple rooms
http://spectrum.ieee.org/consumer-electronics/portable-devices/echolocation-by-smartphone-possible
Echolocation by Smartphone Possible
A burst of sound and a pair of microphones may be enough to map simple rooms
http://spectrum.ieee.org/consumer-electronics/portable-devices/echolocation-by-smartphone-possible