For use against uyoku, I suppose

[Iraira]

Japanese researchers make "speech-jamming" gun
Japanese researchers have found the answer to one of life's oldest questions: "How can I get that person to shut up?"

Researchers Kazutaka Kurihara and Koji Tsukada from the National Institute of Advanced Industrial Science and Technology and Ochanomizu University, respectively, published a paper with details of a gun they are calling the "SpeechJammer."

The device works by "shooting" the offending voice back at the source. Users can literally aim at a target and pull the trigger.

"In general, human speech is jammed by giving back to the speakers their own utterances at a delay of a few hundred milliseconds," the researchers said in the paper. "This effect can disturb people without any physical discomfort, and disappears immediately by stop speaking."

(easier to make a gun than to get the Engrish right)
http://www.cbsnews.com/8301-501465_162-57388850-501465/japanese-researchers-make-speech-jamming-gun/?tag=stack

[sublight]

I'd need to know more about how this is supposed to function.

After all, people working in studios, auditoriums or with amplifiers routinely get their own voices aimed back at them with a time delay. It takes a little practice to get used to, but it doesn't cause your brain to seize up.

[Level3]

This effect can disturb people without any physical discomfort

Then what's the point?

Gimme one of the new US microwave beam crowd control "ADS".
Intense searing pain that "has a high probability of effectiveness with a low probability of injury" (I guess depending on if you set it for "defrost" or "turn human skin into popcorn")

http://en.wikipedia.org/wiki/Active_Denial_System

[matsuki]

Then what's the point?

Gimme one of the new US microwave beam crowd control "ADS".
Intense searing pain that "has a high probability of effectiveness with a low probability of injury" (I guess depending on if you set it for "defrost" or "turn human skin into popcorn")

http://en.wikipedia.org/wiki/Active_Denial_System

THIS...oh how I wanted to murder the van rolling around my place at 9pm....9pm, great time to blare your shitty voice into the night and wake up a million sleeping babies/children

[sublight]

The pair have just received the 2012 Ig Nobel Award in Acoustics for their work.

http://www.improbable.com/ig/winners/#ig2011

ACOUSTICS PRIZE: Kazutaka Kurihara and Koji Tsukada [JAPAN] for creating the SpeechJammer — a machine that disrupts a person's speech, by making them hear their own spoken words at a very slight delay.

REFERENCE: "SpeechJammer: A System Utilizing Artificial Speech Disturbance with Delayed Auditory Feedback", Kazutaka Kurihara, Koji Tsukada, arxiv.org/abs/1202.6106. February 28, 2012.

ATTENDING THE CEREMONY: Kazutaka Kurihara and Koji Tsukada

[Taro Toporific]

The pair have just received the 2012 Ig Nobel Award in Acoustics for their work.
Kazutaka Kurihara and Koji Tsukada

[/quote]

[legion]

It's the directional speaker which is cool. Can't hear unless you are in the line of audio.

[Coligny]

It's the directional speaker which is cool. Can't hear unless you are in the line of audio.

awesum to play "the voices are telling me to kill" game...

[Screwed-down Hairdo]

Download a software virgin (as the locals would say)....

https://sites.google.com/site/qurihara/top-english/speechjammer/lt