This Cyberpunk Bracelet Jams Any Spying Microphones Nearby

Discussion in 'privacy general' started by mood, Feb 17, 2020.

  1. mood

    mood Updates Team

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    This Cyberpunk Bracelet Jams Any Spying Microphones Nearby
    “Bracelet Of Silence”
    February 15, 2020

    https://futurism.com/the-byte/cyberpunk-bracelet-jams-spying-microphones
    The New York Times: Activate This ‘Bracelet of Silence,’ and Alexa Can’t Eavesdrop
     
  2. mirimir

    mirimir Registered Member

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    What, so the ultrasound is loud enough to cut mic gain enough to put audible frequencies down in the noise?

    That's a pretty cool exploit on the wide frequency response of smartphone mics :)

    Analogous to those cross-device tracking apps, which use ultrasound carriers for data.

    This might be louder, though. And children can hear some "ultrasonic" frequencies. Plus various pets, of course.

    And I vaguely recall that loud ultrasound can basically make people nervous, or maybe cause headaches, even if they can't hear it.

    So there could be problems.

    But altogether, a very cool thing!

    My wife makes jewelry, so maybe this could be a popular line for her :)
     
  3. trott3r

    trott3r Registered Member

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    I wonder if I can get away with wearing it at work
     
  4. longshots

    longshots Registered Member

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    Sorry, what was that, I didn't hear you.

    If this prototype is working that well now, it could become a game changer as the device becomes smaller and more effective.
     
  5. trott3r

    trott3r Registered Member

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    Iwould certainly be intersted for the right price and size.
     
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