Hmm, talk about loss of privacy. Will this do it through a mask? Will we be wearing new kinds of 'voice' masks? Note the training data. Probably will be quickly restricted for use in the West. But elsewhere?
Biomimetic Resonant Acoustic Sensor Detecting Far-Distant Voices Accurately to Hit the Market
KAIST (South Korea), June 14, 2021 in CACM
Researchers at South Korea's Korea Advanced Institute of Science and Technology (KAIST) have developed a bioinspired flexible piezoelectric acoustic sensor with a multi-resonant ultrathin piezoelectric membrane that acts like the basilar membrane of the human cochlea to achieve accurate and far-distant voice detection. The miniaturized sensor can be embedded into smartphones and artificial intelligence speakers for machine learning-based biometric authentication and voice processing. Compared to a MEMS condenser microphone, the researchers found the speaker identification error rate for their resonant mobile acoustic sensor was 56% lower after it experienced 150 training datasets, and 75% lower after 2,800 training datasets. ... '
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