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  • RESEARCH HIGHLIGHT

Deep learning monitors human activity based on sound alone

Reflected sound waves can distinguish a sitting person from a walking person.
A computer monitor showing surveillance cameras images at a geriatric care centre

Cameras can watch for people who need help, but a system of microphones and speakers uses sound to do the same task. Credit: Artyom Geodakyan/TASS/Getty

A combination of microphones and artificial-intelligence algorithms can identify whether a person in a room is sitting, standing, walking or falling.

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Nature 570, 9 (2019)

doi: https://doi.org/10.1038/d41586-019-01704-7

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