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[liberationtech] LRAD counter-measures?

Jay Cassano jay at
Sun Dec 14 15:05:47 PST 2014

Hi Lib-Tech,

I'm a freelance journalist covering the intersection of tech and 
politics. I'm wondering if any lib-techers know of or have experimented 
with ways to disable or reduce the sound from the long-rage acoustic 
devices that the NYPD has been deploying lately. LRADs were also used 
during Occupy.

You know, maybe something like this? ;) (I know it 
doesn't quite work that way...)

Protesters have been talking about the use of LRADs for a while now, but 
the Times just picked up on it in the recent 
#BlackLivesMatter/#ThisStopsToday protests:

If anyone knows of attempts to build such counter-measures or has ideas 
for how one might be built, please feel free to reply to me off-list.


Jay Cassano
Freelance Journalist and Editor
Senior Writer, Fast Company
Technology Correspondent, Waging Nonviolence

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