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  1. www.popularmechanics.com › military › weaponsLRAD Sound Cannon - How Does LRAD Work | Sonic Weapon in Protests

    17 de jun. de 2020 · During the 2020 protests, police have used an LRAD sonic weapon to disperse protesters. What is it, how does it work, and how can you protect your ears?

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  2. en.wikipedia.org › wiki › Long-range_acoustic_deviceLong-range acoustic device - Wikipedia

    A long-range acoustic device ( LRAD ), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance.

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  4. www.digitaltrends.com › news › what-is-lrad-sonic-cannon-explainedWhat is LRAD? The Sonic Cannon Used by Police, Explained -...

    5 de jun. de 2020 · LRAD refers to a line of “acoustic hailing devices” designed to broadcast “live or recorded voice messages with exceptional clarity for any operational scenario … even above crowd, engine, and...

  5. theconversation.com › whats-an-lrad-explaining-the-sonic-weapons-police-use-forWhat’s an LRAD? Explaining the ‘sonic weapons’ police use for ...

    20 de feb. de 2022 · What’s an LRAD? The LRAD is device that can put out a highly directional “beam” of incredibly loud sound, up to 160 decibels (dB). To understand how loud 160dB is, it’s important to understand that...

  6. en.wikipedia.org › wiki › Sonic_weaponSonic weapon - Wikipedia

    A long-range acoustic device ( LRAD) produces a 30 degree cone of audible sound in frequencies within the human hearing spectrum (20 Hz – 20 kHz). An LRAD was used by the crew of the cruise ship Seabourn Spirit in 2005 to deter pirates who chased and attacked the ship. [3] .

  7. pitchfork.com › thepitch › understanding-the-lrad-the-sound-cannon-police-areUnderstanding the LRAD, the “Sound Cannon” Police Are Using at...

    9 de jun. de 2020 · What is the LRAD? The Long Range Acoustic Device, or LRAD, is a speaker system and sound energy weapon developed in the early 2000s for use by the U.S. military.

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  9. genasys.com › lrad-productsLRAD Products - Genasys

    The LRAD 950NXT is the world’s most advanced acoustic hailing device.