Japanese Researchers Develop Speech Jammer: Sweet or Scary?
SodaHead News
2012/03/02 22:15:24
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Keeping a boisterous crowd under control might become a little bit easier in the future. Perhaps... too easy. Japanese researchers Kazutaka Kurihara and Koji Tsukada have reportedly developed a "gun" that effectively silences anyone it "shoots." Early prototypes of the SpeechJammer required the gun to be hooked up to a computer, but rumor has it that they've already developed a handheld version of the device.
The way it's supposed to work is a little bit complicated. An abstract about the project found on the Cornell University Library website explains, "In general, human speech is jammed by giving back to the speakers their own utterances at a delay of a few hundred milliseconds. This effect can disturb people without any physical discomfort, and disappears immediately by stop speaking. Furthermore, this effect does not involve anyone but the speaker ... " Sounds a little complicated, but the video will help smooth things out. Plus, it's kind of funny. Do you think a speech jammer is a pretty sweet idea, or is it slightly too strange for your taste?
The way it's supposed to work is a little bit complicated. An abstract about the project found on the Cornell University Library website explains, "In general, human speech is jammed by giving back to the speakers their own utterances at a delay of a few hundred milliseconds. This effect can disturb people without any physical discomfort, and disappears immediately by stop speaking. Furthermore, this effect does not involve anyone but the speaker ... " Sounds a little complicated, but the video will help smooth things out. Plus, it's kind of funny. Do you think a speech jammer is a pretty sweet idea, or is it slightly too strange for your taste?
Top Opinion
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bob h. 2012/03/03 15:09:23Scary






















Muahaha!
First Amendment? Only applies to leftists.
They'll use them.
But this could be segregated from the use in protests or other acts of "free speech."
In this book a bunch of Mayan mystics will end the world as we know it and turn the humans into uneducated creatures that give their will to a device called tele-vision. The device known in the book as TV gives the masses entertainment and what is called news but is more double speak and spin. Using this the masters of the TV will neatly divide the people into what the book calls the Left and the Right. Pretty strange stuff but entertaining.
There is a group in it called the spinner heads that follow very closely their spin masters. This is not to be mixed up with records which as historians will tell us were virtually extinct in the year 2012. Instead the masses will be forced to listen to MP3 devices that fill their minds with pleasing sounds as they turn to a kind of breakfast cereal colloquially called mush.
Sound weapons are a reality.
We're talking about a directional sound wave generator. The depelopers in the US Government won't comment, so details are sketchy, but the device most likely operates by generating low-frequency sound pulses and sends them toward a target.
Some earlier sound weapons simply caused pain from high decibel noises (like Mariah Carey), or generated severe nausea using subsonics (subsonic or infrasonic noise is defined as any sound whose frequency is less than 20 Hz, like Barry White's voice).
The human body does not react well to extremely low frequency noises: Certain low frequencies can cause sickness, balance problems and discomfort and pain to soft tissues and organs. At higher energy levels, a subsonic shock wave is powerful enough to do damage.
This is about sound cancelation , instantly supressing the sinus patern of the sound by puting exactly the same sinus patern in oposite of this so they cancel eachother out .
You can do a simple experiment to prove this principle
Switch your stereo to mono play a song with much bass , then switch the polarity of one speaker and you will notice that the bass sounds different and less present..
This is caused by the difference in movement of the speaker cones , one moves out with the tone and the other moves in this will not calcel it out but will influence the quality of the sound
This is called anti sound , this is tested in industrial projects to reduce industrial noise..
So far the sytems were not powerful and fast enough enough to generate this oposite sinus patern in the sound , but now these two Japanese gentlemen got it working ..
Point it at someone talking, and his/her voice will be canceled out immediately , the perfect way do silence voices of protest ..
For some reason this really grates on my nerves.
I think Bose also uses a flavor of this to cancel noise outside of the listener so that they can relax in peace.
The speech canceling could be a very Orwellian power if used to silence a protest.
Puts a new twist on "silencing the opposition."
The other side will not notice this because your headset will seperate the outgoing and incoming sound ..
When you ensist in using the speakers this can only be canceled out by lowering the sound volume of the speakers to a level that the micophone cannot pick up..
Both sides using a headset and not the speakers will solve this problem ...
In the past this delay was about 2 seconds but the translate time is getting shorter with the advancement of new computers..
You won't know it happened to someone near you, unless you see the guy activate it.