acoustic hailing and disruption (AHAD) system.While it is unclear how the technology will be used in action, it could be used for crowd control in riots or to target public speakers.
Engineers at the Naval Surface Warfare Center explain that in "normal speech, a speaker hears their own words with a slight delay, and the body is accustomed to this feedback."By introducing another audio feedback source with a sufficiently long delay, the speaker's concentration is disrupted and it becomes difficult to continue speaking."Crucially, only the speaker will hear the feedback thanks to a highly targeted audio system, so people around them will have no idea why speech has become so difficult for them.For the latest breaking news and stories from.
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