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- เผยแพร่เมื่อ 4 มิ.ย. 2024
- For this project I built a gun that shoots out a narrow beam of ultrasonic audio. The sound can only be heard by people inside the narrow beam, or through a nearby source when the audio gets demodulated.
I was inspired to build this project after watching CodeParades / @codeparade awesome video Turning Sound Into a Laser: • Turning Sound Into a L... .
I definitely recommend watching his video before you watch mine.
Ive seen parametric speakers for sale but I wanted to make one on my own.
It works by taking an audio source, in this case a Bluetooth speaker circuit, which then gets modulated to 40khz through a 555 timer circuit. From the 555 timer the output gets amplified and then is then sent to an array of ultrasonic transducers.
40khz is outside of the audible human range which means we cant hear it, however once the sound waves strike an object, the 40khz sound gets demodulated and you can hear the sound that's playing over the bluetooth speaker module. Because you cant hear the ultrasonic sound, It makes it seem like the sound is coming from the object. If you stand in the narrow beam of sound waves the sound can be heard, but standing just outside the beam the audio is silent.
Full Build Instructions: www.hackster.io/ShaneB/ultras...
Song I used for playing over speaker: Dizzy - Joakim Karud [Vlog No Copyright Music] • Dizzy - Joakim Karud (...
Song playing in background: Moana - Ryan Little
• Ryan Little - Moana [C...
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Awesome! Glad you were able to get it working :)
CodeParade Thanks! It means a lot!
@@Shane-zh6tx I believe Information Unlimited sells these type of devices. Check their site out.
Have you thought of connecting a regular speakers to the device or a subwoofer?
newbie Q.. i'm guessing the way to power the 5v parts of the circuit is to use a resistor to drop the ~10v you feed to those cheesy amp chips..
i ran the ~5v from my batts to those parts, and into a voltage booster to provide the 10v, it ain't working but i'm waiting on an oscilloscope to find out where. wondering if my inexperience with multivoltage circuits is the problem.
@@SI-ln6tc link I want 1 for Christmas
Hey Shane, thanks for this! This video is very educational and informative! Plus, you sound like a likeable guy! I look forward to seeing more of your videos! You just earned a new subscriber! :)
Cool Project, I wanna try it!
I listened to you launch the gun 3 times and I feel like it made me hear better like cleared the air from my ears or something 😧
Extraordinariiiooooooo absolutely fantasticoooooooooo Shane 😲😲😲😲😍😍😍😍thank you for sharing this beautiful proyect 😉😉😉👍👍👍👌👌👌
This is seriously cool
Riju Chatterjee thanks!
Do you think plain ol 20mm piezo disks would work here, or do you have to use the prepackaged ultrasonic transducers?
@Shane how many meters can you push a annoying sound with it?
Would this be possible with less ultrasonic transducers?
From what I've heard, when turning sound into a laser, it is almost impossible to have lower frequencies. Is that true?
What CAD software are you using?
thanks mate
Is it possible to make it so strong that it can produce a very loud sound in 50m distance?
Bonsoir, j'ai une question, y a-t-il un détecteur de son humain inaudible ? Existe-t-il une vidéo qui rend ce détecteur?
What is the maximum frequency it can produce?
Can you add a laser guidance system to help target it?
What's the max range on this.
Can it go like 400 feet
Interesting!
How much dB can you produce with these speakers and how high in frequency can they reach?
yeah how much?😕
How does it work to listen and record night noises and voices in my home? I stand by. Thank you very much.
You are Cool , Im subscribing right awayyyy !!!!!
Hi, can ultrasound recievers be used to transmit ultrasound? Like some how reversing it?
reduced dB and they burn out. however if you shop around (especially aliexpress) you can buy lots of just the Tx
a transducer is a transducer.. you can use your headphones as a mic if you need to..
Long Range Acoustic Device (LRAD) is an acoustic hailing device, sound cannon and sonic weapon[1] developed by LRAD Corporation. Law enforcement organizations and the manufacturer claim that LRAD systems are primarily designed for long-range communications[2] however, the device has an extremely high decibel capacity, and is controversially used as a less-lethal weapon for crowd control.
According to the manufacturer's specifications, the systems weigh from 15 to 320 pounds (6.8 to 145.1 kg) and can emit sound in a 30-60° beam at 2.5 kHz.[3] The manufacturer also produces systems for public address and mass notification use that broadcast 360°.[4]
LRAD systems are used by law enforcement, government and defense agencies, as well as maritime and commercial security companies to broadcast audible notifications and warnings over distance. LRAD systems are also used to deter wildlife from airport runways, wind and solar farms, nuclear power facilities, gas and oil platforms, mining and agricultural operations, and industrial plants.
Wow. You're great with copy n pasting 😮
How far will it throw sound 200feet I need one will you biuld me or sell me one
How far can it go?
What about about sond quality is good
how far away can you hear that ? is it the same kinda setup woody norris made ?
unit411 yes it’s the same idea, although this one is much weaker
Brilliant project congratulations. CAN BE USE in an drone. ???
what is your power supplier?
I'm currently working on a different implementation of this speaker for my thesis. Hopefully I'll be able to share it much like you have! (if its successful) Great job!
I mistaken it as a tool to listen, what if its at 1 room, then i in middle, then run this from outside, it will hit my head(the noise/sound/voice)?
To spy *
What is the range of the one you build?
Thanks
I'm trying to do some research. I'm trying to find out if people can weaponize these with infrasound, a targeted beam of frequency that could make people sick and give them vertigo from a long distance. Could this technically be modified to do so?
Good luck with that one
Call sis they got a snitch job for your Nazi ass
Interested myself for self defense. Wanting to get a onewheel which is very expensive, so ifs either going to be making some kind of ultra sonic gun or pepper spray wrist guard for safe and secure onewheeling.
Already in use buddy. It's called LRAD
and wtf is it used for?
What is the total cost?
i need one built
You say the microphone doesnt pick it up very well. is the audio actually bad because of the ultrasonic frequency ruining the audio or is it just your microphone being unable to process the high frequency audio and not picking up the quality? does it sound good irl?
Not sure. I think it sounds better in person because of the sound localization your ears have
I know it can reach low frequencies. But what if you glue on piezo that does only 40kHz non stop, on to speaker cone to modulate that 40kHz mechanically. Would love to test that@@Shane-zh6tx
Shane hello,
I am going through a difficult time, I got in trouble with all my neighbors and they have been messing with me since around abril 2018, at first I though i was just stressed out because of the situation but as time went by I started to hear their voices inside my house but I have never seen them talking crap on their windows or anything like that.
I always kind of knew they were using some kind of laser- like device to mess with me because I get this random dot-like headaches all the time. I do not know what they are using to mess with me but now that I am doing my research it all makes sense.
I still do not know what they are using, but I will find out.
Please help me, explain to me what this technology is. please.
You need some help bro?
@@mralexnorton2281 yes I do....
I hear this frequency annoying homming/ earring sounds 24/7 and it get worst/louder at night
I cant sleep at night my head hurst all the time, I feel these weird dot-like hot pains on my head and sometimes on my body.
I am not 100% for sure what it is... but It feels like if some one is holding a laser and pointing it at me....
I am tired and sick of this I cant live like this.
I have read other people threats on different forums and I am not the only one who is going through the same symtoms and same experience.
@@adriancampano7154 this is absolutely not how this or any ultrasonic sound gun works. I am fairly sure that your neighbors have no involvement in this and the only thing I could seriously suggest is medical help
@@adriancampano7154 Sounds like you have developed tinnitus, get yourself checked by a doctor as it's definitely not a device like this that's causing it. Stay safe :)
schedule an MRI right now.
Where do you get the ultrasonic speakers?
Amazon, took them apart from ultrasonic sensors
@@Shane-zh6tx www.aliexpress.com/item/32767557501.html
$9 for 20 Tx modules
but if you shop around, you can get lower kHz and larger diaphragm :) tysm for documenting your build! i'm not a leccy expert but i think you can snag a boost amplifier off ebay for under $5, the L293 takes up to 36V instead of 12V
Why do you thing that sound waves change frequency after bouncing off objects?
Demodulation
@@Shane-zh6tx ok, interesting. Do you have some links where this is explained?
Wich range got this and can you destroy something?
Can this be used to repel people out of your space? Even through a wall?
That was my question to. Like a noisey upstairs neighbor. Could you point it at the ceiling and blast their dumb asses back with heavy bass or even cheesey 80s rock?
No something as thin as a piece of paper stops the wave
link to transducers ??? please
amazon, ebay, banggood, aliexpress
"ultrasonic transducer" everybody seems to be using 40kHz 16mm
these are half the price of anywhere else if you want to wait 1 month
www.aliexpress.com/item/32767557501.html
but personally i got my eye on a different freq band :)
be good to deafen ur enemies
connect the parametric speaker to a bone conduction transducer with frequency emulation
You should watch my newest video! I used this to kill mosquito larvae!
You are a really smart guy!
What is the range on something like this?
Tough to say as I took it apart for my mosquito killing video. I’d guess around 30-40ft anything further and the sound spotlight “breaks down”
It is around 3 feet
so your wall becomes the speaker ? Can neighbors hear that ?
Nope just reflects off the wall
@@Shane-zh6tx ok , thanks ;)
This is similar to what I'm working on, but I would like a hand if you are up for it
Can I pay you to build me an anti-dog barking cannon with a 2000watt amp?
I actually found this video from searching for if there was some kind of self defense sonic gun to be horribly unpleasant to burglars or thieves. Lol.
@@GMoney-Bdid you look into LRAD?
You can make it yourself, it quite easy
All you need is replacing the amplifier with a H bridge
@@ongvoELstuff80 woah there Satan, calm down...
Well, I tried
I wonder if you could make it play music at 170 decibels to disorient people
Oh this is like a spying tool or its a speaker like bluetooth, what is the connection called? Is it wifi, bluetooth, infrared or something else? What if 2 phones with music run at the same time?
this use short sound waves to direct sound
I have already created one since 2016
Could you please share details to me!!!
I am working on this project
Johnkumar7702@gmail.com
Great!!!
Hello, my fellow Mark Rober fans :)
Is this like a stethoscope, if i use stethoscope and shoot sound can reach to other location right? So ultrasonic is being used to attack my senses? Then how come such thing is not in my power to create a solution as our belief of good health is different? It is because of invasion right, then in the end its like i am the laughing stock in their view right due to they have the same belief? If i have this i will shoot around as revenge but who witness this to ignore, even if i am being claimed as the attacker of their life when its their misfortune? So it became logic that i am the criminal/startertotrybully if i attack back the way of reaching sound to mental attack right? If nobody answer then who is the remaining people that understand english or malay? I assume like known situation because of my name being said even in music. So what should i do, as waiting is time wasted unless its just the sun heat, they refuge on answers to gain defence to themselves and of course will deny torture intent right, what i have to go through this like nobody cares, because they insist to look very stable liking doctrine as a criminal that try to bully.
A me serve un microfono "Parametrico". Un' altoparlante "da solo" non mi serve a nulla. Successivamente spiegherò l' utilizzo che ci voglio fare e cosa voglio ottenere. :) I need a "Parametric" microphone. A 'speaker "by itself" is of no use to me. Later I will explain the 'use I want to do with it and what I want to achieve. :)
The voices feel like they are coming from inside me.
Play a creepy noise and point it near a person at night.
Just curious. I want to make something like this to repel rat and cat (maybe with some rotating device)
Have you ever tried to 'shoot' this to a cat? Are they going to be run / annoyed?
Hmmm not sure probably sounds way different depending on the frequencies they can hear. I took mine apart so I can’t test it
They may even be able to hear the 40khz carrier frequency 😅
@@Ferraday based on wikipedia, cat can hear up to 64KHz. So my thought, if it can be loud enough to annoy them like a siren, lol
What can I do against bad or evil neighbors?. Can I use this?. If I have animals (they don't) the sound waves are directional or spherical? To avoid damage animals or inocent people.
You would use this on someone? Are you serious?
You guys just want to mess with people, I know I do 🙈
Your weird problem is called 'Ground Loops' . Have you heard of Phased Arrays ?
Japnese neighbors have something like this and talk to your mind by aiming at your ears. This real bro! Any ideas on how to protect ourselves from this??
i have a 6lb machete forged in aranyik, it will go through walls, iron bars.
No way to protect your self you're a targeted individual someone is trying to make you crazy just follow us targeted individual in Facebook/targeted individual s
How to I get help with this. I'm being targeted atm and can't get help without being treated like I'm crazy
@@juliustetevano6113 use a vacuum chamber not air not noice see youtube video how to make vacuum pump
what makes you guys think you're being targeted?
Arent these levels of ultrasound energy dangerous? Like IR lasers - we cannot see the beam, but it strill very bad for eyes... And BTW isnt that the reason microphones cannot catch it clear - because of very high ultrasound energy that overloads them...?
You can hear down to 20hz
Not down to...Up to 20kHz.
Not down to...Up to 20kHz.
Up to 20 khz and below
Hz, yes, sorry lol
As the authorities don't believe things like this can be in public hand, Can any one tell me how some one imitate this with some sort of set up around the house and surrounding?
Hi would you sell and ship me one to Israel? I need it desperately!
The amplifier board suspiciously looks like a L298N motor driver board...
It is
How can I detect this? I keep hearing people saying things to me but I don't know how their voices reach me. It is so annoying that I have tried to harm myself multiple times. I feel that someone in my neighborhood is trying to scare, threaten and harm me.
How long has it been occurring for? just recent or a long time?
@@johnnylego807 Its been occuring since 2 years. It is probably some kind of devices with speakers that are being used to push me away from my home. It is common in this region, We are used to fighting over territories.
In modern terms it is form of Gaslighting.
@@MohammadThePharmacist Well if you are certain , 100% certain this is not a mental issue and is physical, then you can in fact Block it.
An acoustic corner reflector would efficiently reflect the sound directly back at the LRAD source as long as the reflector faces were larger than about a wavelength (for 1Khz sound, that would be about 1 foot).
If you built a roughly human sized corner reflector with a hard front surface and sound adsorbing foam backing, (and wore earplugs), it should do a pretty effective job of blocking the high frequency LRAD sound while making the LRAD operator quite uncomfortable from the reflected sound.
Edit: Here is an actual paper on a similar device used as a sonar target (pdf): Improvement for Detection Distance of Sonar by Flat Acoustic Reflector
@@MohammadThePharmacist Foam ear plugs or noise canceling headphones would be my first test, does this happen everywhere you go or just in your home?
Try something. Play the last part of thie video in the vicinity of your dog.
I swear I had a high though like what if I could whisper in someone’s ear from 100 feet away but some type of sound gun. So I did what any logical dumbass would do and “youtubed” it.
using a 555 for generating a stable 40khz is a BAD IDEA. It is not stable, it is not accurate. In fact the components you have used would theoretically give you ~44.5Khz, which when fed to 40khz ultrasonic transducers would result in an output at LEAST 10dB down. With precision generator and with proper tuning you would achieve at least 10x the power.
I made this for $20. I really don’t care about precision tuning and just glad it worked
@@Shane-zh6tx yeah, well. With correct tuning you would not have needed those extra 9 transducers or the effort to wire them all up. Duh.
@@Shane-zh6tx 'glad' ? Or 'surprised' ? Hahaha
Why there is baby crying in the background music??
?!
The sound quality is very poor, not so I do well😄
I believe my neighbors have made something similar that connects to a car and Mobile phone to replicate some sort of brain disorder using laser pointers purchased off the net.
its strange to me how this guy can design and build something like this, but it never occured to him that he could've demonstrated the device's effect on video with simply an external microphone brought up to the target.
Pretty sure you need an external microphone to do that
Buy him one.
The use of this kind of technology on another person should come with a mandatory prison sentence and multiple felonies.
Multiple felonies? Seriously? This is a great alternative to a taser and there are situations where self defense would merit the use of something like this or a portable ADS system.
@@vgman94 great alternative? Really?
Fucking perps
Point it at Biden Hahhahahahhaha
Why why why why why do Americans call it SODDER, when everyone else calls it solder 🤦♀️
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