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this post was submitted on 11 Aug 2025
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Privacy
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BRB. Building a wearable that sends out an ultrasonic screech to blow out nearby microphones.
Going to call it "Blow Me."
Edit: looks like they already exist: https://www.newscientist.com/article/2328652-voice-jammer-stops-anyone-from-recording-you-speak/
https://archive.ph/unmYO
Also, paper with more detail: https://arxiv.org/pdf/1904.08490v1
Is there a DIY build somewhere for something like this? From my quick googling I've only seen expensive off the shelf products
https://github.com/mcore1976/antispy-jammer
and also
https://github.com/buildidealis/audio-jammer
Awesome, thanks for sharing!