Some animals such as bats, whales and dolphins use echolocation -- emitting a sound and listening to the echo -- to create a mental map of their environment, and some blind people have learned to use finger snaps or tongue clicks to create a rough equivalent, they said.
Scientists at the Ecole Polytechnique Federale de Lausanne say technology and the new algorithm could be used to produce a more accurate sound experience in spaces, Discover News reported Tuesday.
A person's whereabouts could be revealed via an echolocation app on a smartphone, researcher said, down to the very room they occupy, since every room has a unique audio signature, they said, with the technology creating a sort of hyper-localized audio GPS.
"Our software can build a 3-D map of a simple, convex room with a precision of a few millimeters," researcher Ivan Dokmanic said.
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