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Theregister

FYI: Your browser can pick up ultrasonic signals you can't hear, and that sounds like a privacy nightmare to some

By Thomas Claburn 08 May 2020 at 15:05

Technical folks looking to improve web privacy haven't been able to decide whether sound beyond the range of human hearing poses enough of a privacy risk to merit restriction. People can generally hear audio frequencies ranging from 20 Hz and 20,000 Hz, though individual hearing ranges vary. Audio frequencies below and above the threshold of human hearing are known as...

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