Could you make a new video of this now years later? Have you more ideas, has your project evolved? Thank you!
@bloodbond3
2 жыл бұрын
I wonder if this sort of technique could be applied to a use-case like reducing predictable noise from a window air conditioner.
@tpfrk8977
5 жыл бұрын
Why aren’t there active noise canceling home speaker systems? I would pony up some cash for one if it also would double as a surround sound system.
@Zeke2p9
2 жыл бұрын
I cant wait for the future where I can say "You turn up the silence!"
@altinturk
9 жыл бұрын
That's such a great demonstration of ANC! Thank you lots.
@Danster82
4 жыл бұрын
If someone created a system like this, I envision mini speaker/mics that blend into the wall and they can cancel out traffic sound it would be so popular. it wouldn't need to be perfect all people want that live along noises roads is to cancel out just enough so they can sleep.
@ShaunHensley
6 жыл бұрын
It would be so much better if KZitemrs put the demonstration at the beginning of the clip and the explanation after
@cate01a
3 жыл бұрын
ikr! people just can't understand how to make a helpful informative video
@g-p-d
8 жыл бұрын
This made my eyes water
@laurabrown1456
3 жыл бұрын
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
@laurabrown1456
3 жыл бұрын
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
@xavierdias-hawkins1468
2 жыл бұрын
No way, this blew my mind. Would live to see if this has developed at all
@AndyBB-
8 жыл бұрын
I'm looking into creating a similar system (I live next to a freakin' runway). Thanks for the insight!
@michakowalski2930
Жыл бұрын
any luck? : )
@m7dtbh580
11 ай бұрын
My neighborhood is crazy loud until 5AM. If you found a solution other than changing your neighbors tell me
@haydnoleary6937
2 жыл бұрын
Nice video man Funny that Apple air pod sells this simple audio system for exorbitant prices.
@sebastiangivskud2096
Жыл бұрын
there's a reason for that brother
@sebastiangivskud2096
Жыл бұрын
is your software open source?
@steveoag4392
6 жыл бұрын
Great video! I'm trying to replicate this system at the moment. Just wondering, what is the exact purpose for the mona board, can you do it without one?
@SachinKumar-ih4qx
Ай бұрын
Great
@khulan3
6 жыл бұрын
Which algorithm did you use? FxLMS?
@princesinday6570
8 жыл бұрын
Interesting... we will be making one of this as a project and i hope we could be able to make it! Thanks for this video i learned a lot of things
@cozytv9831
8 ай бұрын
This is impressive, what do you think is it achivable to have a souround system of boxes and mics set up to cancel all noice? :)
@TimBratton
7 жыл бұрын
Great demo!
@jamesperez-sanchez7573
6 жыл бұрын
I'm assuming the sound that we hear in the video was recorded through the mic in the "cancellation area." How did the noise sound in the rest of the room? Like at your desk for example. Was it also reduced there also, or only near the cancellation zone?
@jesselevine0
6 жыл бұрын
This is a crucial question
@aman09astana
8 жыл бұрын
Cool Job! How can I setup such environment for my office? What type of device is compulsory? Thanks
@ipwn951
2 жыл бұрын
When the second speaker kicks in: NOICE
@feltraindrop2296
2 жыл бұрын
hi
@kinghawaii
6 ай бұрын
Hi Everyone ! I need a low frequency noise cancellation device (infrasound) if anyone knows of one please leave it here, since we are having many people harassed by daily infrasound harassment, we urgently need a tool to repel it, many people are dying because of this . please we are desperate about this attacks ! thanks for any help !
@daledirkes1935
9 жыл бұрын
Where can I buy such a System?
@yaronsalama6995
6 жыл бұрын
Dante Alighieri for now the technology is not advance enough. maybe at the future there be such a thing
@arkivkonto7044
8 жыл бұрын
I have no idea what youre talking about, but wth cant I buy this yet!!??? i need it yesteryear and so do many other people.
@abinpaulose8606
8 жыл бұрын
Thanks for the reply. In that case if the audio is high in that moment can that go above the audible decibel range ?
@salvadorguerena725
6 жыл бұрын
Can this be made in a way that both, the microphone sampling the sound and the anti sound speaker are cose together?
@jedics1
6 жыл бұрын
could this be used to make a house quieter, eg. put mics facing a noisy neighbours house to reduce the volume of his music?
@bwpdylan
6 жыл бұрын
Wow, this is a kind of old comment, but my assumption would be "kind of". That is to say, he looks like he's using a lot of software. The reason that's an issue is simply that software uses your computer CPU which can be kind of busy and not particularly dedicated to the task which causes a bit of "lag". So imagine your neighbor is yelling a lot. Well you have to note a few things 1. Their sound isn't consistent. 2. Their sound has kind of spread out a lot and is now traveling through a lot of mediums (doors, windows, back into air, etc) and as a result it has become reflected throughout the room and hard to find a particular signal source that you can actually produce the opposite of. To clarify, the noise that your microphone is picking up, unless the microphone is right next to your ear, isn't the same as the noise your ear is picking up. 3. if you do, somehow, write a complex enough program to account for the various reflections, frequencies, and phase shifts of their sound waves well that program is still running through software so in the let's say 50+milliseconds that it took it to process and produce the opposite of all of these things the sound has now changed. So now your computer is producing the exact opposite of a sound that occurred 50 milliseconds ago which is kind of annoying because it, in itself, is a sound. Since no cancellation is happening because the sound it is trying to cancel has passed it's now just producing an anti-sound to a sound that no longer exists. Worth noting: I say "kind of" because noise cancelling headphones get around these issues by placing the microphones right near the speaker that plays into your ear, this allows for the headphones to make an anti sound that accurately depicts what would otherwise be hitting your ears. They also don't use software, but instead they have chips in them that are super tiny and devoted to nothing but noise cancelling. Since that is all the chip does it has less issues with latency or "lag"
@idontevenwanttomakea
Жыл бұрын
@@bwpdylan man your reply was so freaking helpful
@yuktabhardwaj7554
6 жыл бұрын
Instead of using this whole system can't we just change the polarity of one speaker??
@sebastiangivskud2096
Жыл бұрын
you would practically need perfect conditions for that to work
@kinetic1259
4 жыл бұрын
@mingdontsing Hey can I get in contact with you pls? Wouldn't mind picking your brain about some of the gear you use for DSP programming.
@aryav.6692
7 жыл бұрын
Hi! I was wondering what materials you used to create such a device. Could you please tell me?
@kulbirsingh8915
7 жыл бұрын
he's probably using a controller board, speakers, a mic, and probably some sort of program that takes in an audio input and outputs an out of synch audio signal.
@w0ty
7 жыл бұрын
Did you actually write that unironically?...
@dusvlf0419
5 жыл бұрын
Um..Did you use LMS algorithm? and I don't know if I heard correctly, but did you say DMS? at 02:15??
@laurabrown1456
3 жыл бұрын
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
@laurabrown1456
3 жыл бұрын
One of the Best Ideas of SoundProofing is "SoundProof Curtains" it actually Block outside Noise coming from Windows. Check Here: livesoundproof.com/best-soundproof-curtains/
@E-BikingAdventures
7 жыл бұрын
Why cant you just use the inverting input of an op-amp? The output will be 180° out of phase with the input.
@bhateharsh
7 жыл бұрын
I've tried it. The system is question is a feedforward system and not a feedback system. This means that there is little scope for latency. With op - amps, the latency introduced by the op - amps make the cancellation of noise a difficult task. Secondly, with the help of digital filters, the output from the processing end is guaranteed linear but the same cannot be said for an op - amp. Read up "Active Noise Control Primer" by Scott D. Snyder for a comprehensive review of this subject.
@E-BikingAdventures
7 жыл бұрын
Harsh Bhate. if the mic is at a certain distance infront of the output, then that should compensate. the speed of sound cannot compete with the speed of electricity. you can use a simple transister or discrete amplifier.
@bhateharsh
7 жыл бұрын
Robert Tomkinson A simple transistor might not have the uniformity of response that is expected from the system. Placing the microphone at a distance to compensate for the lag is difficult to compute and fixes the system geometry; any other noise source cannot be cancelled.
@mrbig3386
4 жыл бұрын
Why is there no software that can do this? Just use my headset mic to listen to the noise around me, then use that input to cancel out the noise in my headphones.
@kevin-ru6oe
4 жыл бұрын
Actually there is one. I have been looking about that. It called krisp and supposedly it does that. But I guess that it is very hard and maybe the mic must be good for work
@kinetic1259
4 жыл бұрын
Because active noise cancellation needs to be done in near-real time. If your processing time in software takes say, 200ms (1/5 second) then your inverse phase will lag behind your noise, and then you'll still hear (most of) the noise.
@allenoy93
8 жыл бұрын
What would happen if u placed the speaker producing the destructive wave next to the source? Would both waves travel in phase and cancel in the whole room?
@bhateharsh
7 жыл бұрын
Technically yes. While you are reducing the acoustic amplitude, the acoustic power in the room will appear high. To better understand it, try using a Bose headphone. You'll observe a "strange pressure" in the ear canal in a while.
@jsnthurst1
7 жыл бұрын
Are there ways to improve it so that it cancels out even more of the sound?
@w0ty
7 жыл бұрын
It's more silent at the point of the microphone but still noticeable. Making it more silent is not feasible without more information, the noise you're hearing is due to reflections off walls that are out of phase with the original wave picked up at the cancellation microphone AKA constructive interference. Unless you have another microphone in another position e.g. the other-side of the room then no not really, you also risk reducing quality of anything spoken into the microphone you're using. On top of this adding another microphone adds a huge deal more complexity to the software.
@nageshwarsingh3255
8 жыл бұрын
can you please provide with microphone details.(manufacturer and data sheet link)...thanks ...
@robertbohrer7501
6 жыл бұрын
It works because the mic is right in front of the speaker and because there are only two lower frequencies, which are easier to cancel out than higher frequencies. This is not a proper demonstration of an area-wide active noise canceling device.
@WalissonPires
8 жыл бұрын
This microphone have a pesponce of how many volts in the analog outputs ?
@sherleenadasari295
7 жыл бұрын
can u help me with the code .....????
@abinpaulose8606
8 жыл бұрын
Hi when the system started I could see sudden ramp up. Can that be a disturbance ?
@Dan0622
8 жыл бұрын
+Abin Paulose maybe the algorithm he's using started the 'anti-noise' speaker in-phase with the 'noise' speaker, and the program works to gradually slide it out of phase until the noise is minimized
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