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by EForEndeavour
2204 days ago
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Ultrasonic? I thought the whole point of these devices is to produce ear-splitting tones that can actually be heard by humans. From the article: > According to a detailed teardown of the LRAD 300X posted by another audio technician, the LRADs produced by Genasys, the company that pioneered the devices, do not use an ultrasonic beam to project sound. However, Rife and Liberti say their design would still be effective against these hyper-directional blasts. |
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