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  • RESEARCH HIGHLIGHT

Deep learning deciphers images made with sound

A composite material helps scientists to see the details in ‘acoustic images’ depicting numbers.
Photograph of the imaging experiment in the anechoic acoustic chamber at EPFL.

A grid of speakers (grey and black, far left) emitted sound waves to ‘write’ numbers inside an echo-free chamber. Credit: Bakhtiyar Orazbayev

Scientists who used a set of speakers to ‘draw’ an image with sound have come up with a way to resolve image features that are 30 times smaller than the wavelength of the sound waves used to produce them.

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Nature 584, 327 (2020)

doi: https://doi.org/10.1038/d41586-020-02348-8

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