New Japanese ‘gun’ can silence speech

[FritzforPaul]

LOL..well I am impressed! Are ya rich yet?

 

[pcosmar]

I get that it's immensly annoying and would make it hard to comprehend anything being said, but the article claims that: "The human brain, hearing this echo effect, becomes immediately confused and interprets it as silence." So you shouldn't be able to hear anything at all, and that's what I'm having a hard time wrapping my brain around...

Actually,, I think their description is oversimplifying it to diffuse how really nefarious it is.

Watch this,


You can also research
"Mob Excess Deterrent Using Silent Audio" or MEDUSA

Tinfoil does not help,, this is unfortunate reality.

This shit has been going on for some time and people think this is "new".

 

[Bosco Warden]

I shouldn't joke because it's becoming a reality.

I know how to stop it...

but will it work?

I got a few boxes of the "foil" to foil these fools.

 

[thelaibon]

I'm an audio engineer. I can detect a shift in timing (echo, delay, whatever u want to call it) as little as 2ms from the original audio. I would think most people would notice at 10-15ms. I didn't read the article, but I doubt it had anything to do with delays. I gather it's referring to sound cancellation -- which is the playing back of 2 identical audio clips, however one clip has been deliberately inverted out of phase (inverted oscillations), resulting in a "zero sum" kind of thing.

This is an old trick used on old stereo records -- you could isolate (or exclude) a specific instrument from a song by inverting the phase of the L or R side, resulting in whatever was left (vocals, in the middle of the stereo field, as an example).

Bose also used this type of technology on their noise cancelling headphones. You wear the headphones on a flight, for example, and there is a tiny microphone on the exterior of the headphones somewhere which transduces the sound pressure into voltage -- inside the headphones is an analog circuit which quickly inverts the phase and plays back the inverted phase into the headphones. The user supposedly experiences silence (never tried it myself) as a result.

 

[carmaphob]

I shouldn't joke because it's becoming a reality.

I know how to stop it...

This would definitely stop it.

 

[pcosmar]

This would definitely stop it.

NO.
It will NOT.

It is closer related to this,, Likely a spin off of the technology.
http://www.newscientist.com/article/dn14250-microwave-ray-gun-controls-crowds-with-noise.html

 

[presence]

Can't do a thing about the inhuman megaphone app or the human microphone!

presence

 

[azxd]

It doesn't make the sound go away, as in all of a sudden no one can hear you, it confuses your mind and makes it difficult to speak.

So it's really a method of determining who the weak minded are ... LOL

 

[ronpaulhemp]

This is crazy! A speech silencing gun?! What next, a thought-stopping gun?? What is our world coming to...

 

[pcosmar]

How many people in this thread are capable of Critical Thinking?

Do you know how sound travels?

Do you understand that this CAN NOT work as described ? (it can work differently)

 

[asurfaholic]

That's not what the article says though...

I wonder what exactly that statement means... maybe its a dialect issue, they might have botched a translation... or not.

It seems odd though, to say that when the person speaks he hears a delayed echo, but interprets it as silence. Weird..

 

[FindLiberty]

I'm an audio engineer. ... deliberately inverted out of phase
(inverted oscillations), resulting in a "zero sum" kind of thing.

Bose also used this type of technology on their noise cancelling headphones.

High db Liberty SPL back to my bro thelaibon, I'm an A/V engineer too (retired)!

Yes, that's interesting. (I did not read the article, but the quote mentions "delay").

Supposedly, some "high end" cars optionally have noise cancellation technology in
the seats to REALLY reduce road and engine noise for the occupants (hidden
speakers in seatback near ears are fed with inverted sounds from mics that are
placed elsewhere in vehicle).

Projecting powerful inverted sound waves could reduce the sound near
its source (mouth) so even a PA system (or bull horn) would be effectively
"muted". The person speaking may not be aware of this if the acoustic
cancellation wave could be tightly focused only on the mouth (or end of bull
horn).

+++

Geeesh,
This system could be an accessory that's would be logically attached to the
SWAT snipers rifle so that temporary (acoustic) and permanent (bullet to brain)
anti-protest measure options are immediately available to "authorities".

I don't think that phase inversion method could work on a large chanting group.
Tyrants would need to hire more "audio snipers" at a 1:1 ratio with the crowd.

Turning up the power too high could give the spectacular "Scanners" exploding
head effect therefore a sniper to crowd ratio of 1:15 shoud be more than enough.

Technology advances ...along with countermeasures. e.g., Wireless HH mics have
made the older "apply 12KV to XLR pin 1" electrocution method obsolete.

+++

LRAD operator wearing hearing protection

 

[pcosmar]

Either people are not reading or Not Thinking. I am glad we have sound engineers here.
You should KNOW how sound travels.

The researchers say the tool is intended to be used in quiet spaces, such as libraries, to stop people from speaking. But in a published paper, they also seem to have bigger plans in mind:

If the speaker is hearing sound 100 ft(30 m) away so is everyone in the vicinity.
This thing would have to be LOUD. That would defeat the stated purpose of "Quiet Spaces".

This thing simply CAN NOT work as described. ( it can work differently than described)

Research MEDUSA (Mob Excess Deterrent Using Silent Audio)

http://en.wikipedia.org/wiki/MEDUSA_(weapon)

 

[pcosmar]

I shouldn't joke because it's becoming a reality.

I know how to stop it...

It is interesting that you posted this image,,
Because this type of Voice to Skull technology was the inspiration for the original "Tin Foil Hats".
Sadly, they are infective.

 

[ShaneEnochs]

Wait, what? The human brain can't handle a 0.2 second delayed echo? Really? I find that hard to believe actually.

Edit: Could someone with the video editing skillz try to run the audio track of a song or something twice over eachother with a 0.2 second delay to test this. If it somehow made me unable to hear anything my mind would be blown...

It's true. I work at a call center, and every once in a while there is an echo of my voice. Even though I've said the opening script ten thousand times, it'll stop me dead in my tracks and I'll forget what I was saying.

 

[CasualApathy]

It's true. I work at a call center, and every once in a while there is an echo of my voice. Even though I've said the opening script ten thousand times, it'll stop me dead in my tracks and I'll forget what I was saying.

But you hear the echo right? It's not like you're talking but are unable to hear the sound?

 

[r3volution]

cant all guns do this ?

 

[ShaneEnochs]

But you hear the echo right? It's not like you're talking but are unable to hear the sound?

I don't know how to describe it. It's not silence, but it's not like I'm really hearing myself either. It just screws with my head.

 

[thoughtomator]

Check it out, another speech silencing weapon:

Seriously, if you could stop someone from talking without hurting them, every parent would have one. "Don't talk back to me, young man!" and actually be able to enforce it, think of the possibilities!