LRAD

New Inquiry writes about LRAD [Long Range Acoustic Device] weapons, noting that they are "simply about power:"

Communicati0n is a means of making you obey -- one cannot, after all, speak back to an LRAD, since it's simply one-way projection -- and the violence of forcing compliance takes up the sonic register, similarly displacing sound as a vector for dialogue. There are simply higher and lower volumes.

NI also emphasizes "the way violence and speech become literally the same thing:"

To ask the question of whether an LRAD is designed to hurt people or designed to communicate across long distances with people is to mystify its central design function: it is a technology whose purpose is to FORCE you to listen and obey, and one which is less interested in the difference than you'd think.