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- เผยแพร่เมื่อ 1 มี.ค. 2012
- Authors: Kazutaka Kurihara: [goo.gl/YMRce] and Koji Tsukada [mobiquitous.com/en/] The project web: [goo.gl/3ho2w]
SpeechJammer is a system that can be used to disturb people's speech. 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. We utilize this phenomenon and implemented two prototype versions by combining a direction-sensitive microphone and a direction-sensitive speaker, enabling the speech of a specific person to be disturbed. See detail in our paper on the pre-print server: arxiv.org/abs/1202.6106 - บันเทิง
I'd hope the video would demonstrate what this sounds like to the speaker.
to get an idea: th-cam.com/video/9QeXYeHz-us/w-d-xo.html
The twist is people just stop talking because they’re alarmed he’s pointing that at them.
It's not meant to stop you from hearing your own voice, it plays your voice back to you with a delay of several milliseconds which, believe it or not, makes it very difficult to speak.
I hate it when I have to wait several handred miliseconds for anything to occur.
this is maybe the worst demo video ever, was it hard to show how it sounds from the other side?
كاش جديد ؟ كمال !
Yes! Just because when it's pointed at you then you hear your voice with a little delay which perturbate your concentration... How can you feel this delay in a video? You have to experience it by yourself ;)
You can do the same with headphones and a mic, it isn't that hard to recreate.
its from 9 years ago
"Napoleon, like anyone could even know that." :-D
Taken from an article on NYTimes: « When you aim the SpeechJammer at someone, it records that person’s voice and plays it back to him with a delay of a few hundred milliseconds. This seems to gum up the brain’s cognitive processes - a phenomenon known as delayed auditory feedback - and can painlessly render the person unable to speak.»
So while it might be deemed psychological, the effect seems pretty efficient.
If they made this pocket sized, that would be great. Also, a laser that isn't very detetable....
I know this works but this looked fake. Why not show us the real effect?
hard to portray. Just enable audio loopback on your pc with a slight delay.
Because it doesn't work
@@JustapErson no, it does. The science checks out
Even though it looks odd to the most of people see this device, I think this is a brilliant challenge and look forward for the further more development.
If you've ever called into a radio talk show that has voice delay and you left your radio playing where you can hear it while you talk on the phone, you probably have experienced this effect. I can testify that it is distracting, though with sufficient concentration, one can overcome it.
Okay, that makes sense.
I was actually hoping to hear it from the speaker's position, so I know what it sounds like.
Achieve all the benefits of a stroke temporarily without all those lasting medical side-effects
They use directional speakers that transmit most if not all of the sound in the direction of the person the gun is pointed at. So probably those standing behind the person could hear it. Notice that the camera is always behind the gun so the directional speakers prevent it from picking up the sound.
There is also the fact that it is the speaker's own voice that is amplified and fed back. So even if the sound reflects around the room to the camera it mixes with the original voice of the speaker.
Good anti-magic-user weapon
lol
My only problem is that you can get a similar effect from pointing a regular bullet gun at someone. IE: Stammering followed by shutting up and looking at the time.
It's 2021 the tech exists to make it the size of an human eye...
Now ineffective against anyone who plays multiplayer video games!!!
Built up an immunity right xD
Right. I completely understand that idea. What I don't understand is how, in the video, I'm not hearing their speech projected back at them. How can only the one person hear the echo?
I know the effect from teamspeak, if somebody has an echo feedback and you get to hear your own words shortly delayed. It's extremly disturbing.
the principle is completely functional, its a forwards mic to pick up the voice of the target only, and a speaker to play it back, the timing is probably just a bit of wiring, you could make it quite easily i could think with the right knowledge,
A good question is, can you get used to the effect? Can you anticipate that the jammer is coming and just talk your way right through it?
10 years 10 likes and only one reply.
@@feathersswissfield8514 Guess we''ll never know
@@nonoachim Yeah.
...does it also correct misspellings shown on screen, e.g., "handred" and "speach" ?
@Xijor It's a directional speaker so only the person it's pointed at would hear the "echo effect", not the camera shooting the action.
So does it tie up signals in the brain by confusing them, thus making it impossible or difficult to fluently talk or does it like make things awkward so the person doesn't talk? Btw, I read the description but still just wondering.
@arrisoomiero What iron block?
where can I buy this
Can I use to stop a barking dog or a mocking bird?
We do. I guess I'd just be curious to try it. I'm still not sure wether they actually use it in the video or if it's just some acting?!
hey you know how to do this is for a project in the high school, pliss contact to me
So does it work like this xkcd dot com/368/ machine, or it affects only psychologically?
i dont get it, it sends out their recorded voices milliseconds after they speak? But we cant hear it??
Awesome!!! Where to buy one?
Are you going to sell it or what?
Even like that... to make that it should sound... the waves will not travell unsounding till get to the victim mouth and then comes magicly sounding... and by that... I don't see differece by talking in a stage with return speakers with delay...
We are agreed. It's basically a hard reflex, but I think that still counts as psychological, or mental, at the very least.
where can i get one?
Um... I get the idea behind the gun, but what I'm not understanding is how the gun seemingly produces no sound audible to anyone but the target. I may be wrong, but that seems bullshitty to me.
携帯電話が出始めのころ自分の声がディレイで聞こえて気持ち悪かった。
同じような効果なのかな？
Radio call in shows tell the caller to turn down the radio in their home for the same reason. If you hear yourself delayed on the phone it stops you as well, used to have that at work from time to time. Most likely it will be used to silence someone making a public disruption before they can be humanely tazered, sprayed and wisked away.
A friend of mine from Kyoto already tried this on me. It didn't work. And for people that fail this speech jamming device, if you speak in a rhythm or pentameter, it's almost like nothing's wrong.
Where to buy?
@virtualkme It has a built-in directional microphone and speaker. The victim hears their own voice repeating in their ears and becomes disoriented/confused.
Perhaps, though precision directional speakers are a thing.
This video makes it seem like the device affects the brain and vocal box itself, when in reality all it does is replay the persons speaking BACK to the person, in an much louder audible fashion. Its no different from a megaphone at a protest shouting to the protestors. Except This megaphone is pointed at your face, and plays your own voice. It operates on ultrasonic levels so that the audio out of the speaker is like an arrow. Raytheon has a device that actually interupts your voice box.
is that sung ha jung?
Is it weird that I kind of want to see the effect for myself? As in, have the SpeechJammer used on me?
same im so curious
@snake172 Wouldn't work on Bush.
@GoliathGunner It wont work like that lol. It uses delays and psychoacoustic eq/inversed signal to create a sound that either cancels out your voice or makes it impossible to understand.
I was hoping this would stop the person to communicate like their vocal cords are destroyed, but for a short time and without the pain
It doesn't work using inverted phase, it takes advantage of a natural human reflex by playing the speaker's own voice back with a delay of several hundred milliseconds.
@nikeweber I don't talk a lot.I was saying that it can be used against politicians because they are one of the public figures that speak the most.
In the girl's case it appears that after the initial confusion (and those weird question marks that magically appear over her head and then vanish) her adaptive human brain kicks in and compensates for the unexplained audio anomaly and she continues to discuss what happened last week on Jersey Shores with renewed reckless vigor. Much to the dismay of her co-workers I'm sure. So by definition would it not be a disruptor as opposed to a jammer?
I thought it would project the sound all over the room so it became distracting to everyone and impossible for someone to continue.
It doesn't work for me. I downloaded the program, I even played with the MS delay settings and attempted various times. I surpass Speech Jammer!
well that's a pretty good explanation... but the cancelation of the frequency by inverted phase is just pretty impossible to do in a real enviroment (is like putting 2 amps facing each other with a mic conected to both trying to not hear anything)... But well... as andrew quoted "Any sufficiently advanced technology is indistinguishable from magic"... let's see how true it is
Speechless is an android app that demonstrates the effect used by SpeechJammer.
@zezuntxiduntxi Yeah. My first thought was something along the lines of "vehicle-mounted, scaled-up variant used by police to silence protesters". When the device is used, you hear an echo of your own voice, delayed by a few hundred milliseconds. If you've ever used XBL voice chat and heard your own voice sent back through someone else's mic, you've been exposed to this effect.
This thing is hella simple to build. You could construct one at home, using a parabolic speaker/mic and an Arduino.
No need for a complicated jamming device. A laser dot appearing on a speaker's mouth will silence everyone in the room as they hit the deck.
I think I might try making one of these... it's a fun idea to be sure.
directional mic not 'mike'
Would it be illegal to use this on a politician making a speech?
Sound waves of the same length and frequency nullifies themselves.
... that was incredibly confusing. All I can say is that the delay is calculated based on the distance from the target so as to have the greatest effect.
★ Dude, this is epic! Like we all want one!
Danyabad Japan! you are awesome!
you can download Speech Zapper app for iPhone
too bad its big and bulky so its to obvious
Congratulations！
the 2012 Ig Nobel prize ( the Acoustics prize)!!
yeah, it has nothing to do with the fact someone is pointing a laser guided gun at their face. I don't understand Japanese but I'm fairly sure the girl would be saying something along the lines of ,"I have to go, some weird guy is pointing a game-cube at me"
I don't get it
It's like when people use amplifiers to amplify their own voice. The original voice is indistinguishable from the amplified voice due to mixing.
But the person will still hear his own voice unless you find the way to cacell it... you can extract the resonance of his own body, head and cavities that will let him hear himself even without hearing the others
I don't even get how is that possible...
What to do if somebody was born with the problem?
+Adam Dziedzic It actually helps them stop stuttering.
Did they died?
Why has this had almost 2 million views?
Very interesting however i´m worred because your gadget can be misused.
I don't think you can receive, process, and re-produce full range non-repeating sound that quickly. That's why this video doesn't really demo the technology.
It doesn't blow out the tiny speakers everybody has at the back of their throats, so, yes, it's psychological.
@Moerdarvalen Yea i know... I can't help it
@venerableraptor To me this seems more like gaining freedom. It is very hard to make people shut up (in a convenient unharmful manner that does not involve shoes or other solid objects).
The people will probably notice, if you pull out this huge thing, and just points at them. So this disrupts the bandwidth of human speech, cool.
@RuledByMars65: I don't know what you have against Chinese, whatever your bug is the people in the vid are Japanese. Regardless, your comment regarding free speech I do agree with.
They're directional speakers. Those are real things that work pretty well. See Wikipedia's article on Directional Sound.
@peyotecactus I thought that's how people normally talk in Japan.
@paralogos wrong type of gun
What fun this would be for a husband with a talkative wife. They just need to tweak and upgrade it where you could get longer silence periods.
Ha ha, hilarious! Where can I purchase one? Ha ha. Too funny. Great gag!
lol. i thought it was something really advanced. in theory if the device were capable of analyzing sound waves and used some algorithm for reading someone's lips or just really fast computation and emitted the exact sound waves to nullify their speech, THEN IT WOULD WORK
and the company that makes it will be as rich as apple.
Google Grinning Studios for an interview with the creator of the SpeechJammer, Dr. Kazutaka Kurihara.
хорошее применения для преподов против болтающих на лекциях учащихся/студентов)
Acoustic science at its best !
I think if somebody pointed an object with a trigger and a laser at me, then I would stop talking too.
What's so new about this? Teachers have been not only stopping speaking but causing brain-freeze by simply asking a question ----- and they never needed electronic technology to do it!
I laughed so hard at the end poor guy couldnt even speak lol
now to make a stealthy mini version
Whether it works or not, if you point that thing with a laser at someone's face, they WILL stop talking.
i would buy one if i could!
i want it
There is a Japanese book based off a device of such: Hard boiled wonderland and the end of the world.