For when annoying aggropunks violate your quiet zone ;)

A form of non-lethal weapon, the new electronic device effectively

repeats a speaker's own voice back at them, and only them, while they

attempt to talk. It was developed, and patented back in 2019 but has

only recently been discovered, according to a report by the New

Scientist. The main idea of the weapon is to disorientate a target so

much that they will be unable to communicate effectively with other

people.

Called acoustic hailing and disruption (AHAD), the weapon is able to

record speech and instantly broadcast it at a target in milliseconds.

Much like an annoying sibling, this action will disrupt the target's

concentration, and, in theory, discourage them from continuing to

speak. As for the technical details of the device, a quick review of

its patent is very interesting indeed. "According to an illustrative

embodiment of the present disclosure, a target's speech is directed

back to them twice, once immediately and once after a short delay.

This delay creates delayed auditory feedback (DAF), which alters the

speaker's normal perception of their own voice. 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."