Working of Noice Cancellation

[u/basiroti06]

[u/Spiderbanana]

What amazes me is that, in order to work, you need to pick up the sound, process it, send the processed Signal, and generate an opposite sound wave, in exactly the same time it takes for said Soundwave to travel from the mic to the membrane.

[u/DamienBerry → u/Spiderbanana]

And it’s only possible because we can process the incoming sound wave and produce the counter sound faster than the speed of sound, if the speed of sound was the same as the speed of light it would be impossible.

[u/Krondelo → u/DamienBerry]

Oh shit! That’s wild man thanks for pointing that out. This is pretty insane tech, to be able to do it in real-time is impressive.

Also I feel kinda stupid I never even thought about how noise canceling worked I assumed it was more of a puffery term and had no clue it was actually cancelling it (to a degree).

The best I have experienced is my air pod pro’s. Crying baby on the plane, i popped em in and before I even played and music I could barely barely make out the sound, and the roar of the plane engines became a soft rumble. Then with music on I couldn’t really hear any of it.

[u/DamienBerry → u/Krondelo]

Yeah it’s truly incredible. If you want the perfect sound cancelling experience use your AirPod pros with some hearing protection earmuffs/ ear defenders. It’s a whole new experience.

[u/Krondelo → u/DamienBerry]

Ohh thats a cool idea! So airpods then some over the ear protections as well! Now I just gotta find the perfect song and show/movie for it! Actually already know the latter - Chernobyl, and Oppenheimer

[u/Key-Barnacle-4185 → u/DamienBerry]

Hold up. Is that why i always feels like one are getting higher air pressure forced into the ears ?

I've never been able to use sound canceling. It feels like I teleport into a old airplane with upgraded soundsystem flying high above the clouds

[u/DamienBerry → u/Key-Barnacle-4185]

Most likely, I’ve always felt uncomfortable when I have sound cancelling on and nothing playing as it will still try to cancel but without another frequency that you’re expecting it can feel very strange and uncomfortable.

[u/Sustainable_Twat]

At times, I’ve considered this mankind’s greatest invention

[u/GlitteringPeach6609 → u/Sustainable_Twat]

Its not that hard in theory, but actually genius in engineering and practically

[u/OverUnderAussie]

NOICE

[u/smallhalla → u/OverUnderAussie]

Noice

[u/formulapain → u/OverUnderAussie]

Very noice

[u/OderWieOderWatJunge → u/OverUnderAussie]

Probably just engagement bait

[u/onionHelmetHercules → u/OverUnderAussie]

Noice-canceling

[u/IlovePistolShrimps]

Giving credit to the channel would be appreciated, the channel is "KnowArt" on youtube, they have lots of good short animations on topics like these.

There are also videos in the long format ofc.

[u/Axolotl_Aria]

I love noise canceling headphones but I hate when that stupid saxophone hits me in the face

[u/Qwintaris]

The world has come a long way with inventions to make people feel comfortable

[u/Grouchy_Competition5]

fyi, holding a screaming toddler in your lap also cancels out ambient noise

[u/Demon-Cat]

Why bro gotta play the lick 😭. At least he chose the DT 770 Pros, very good pair of headphones.

[u/Bakerman1980]

The lick spotted

[u/johnybonus]

Noice

[u/Three_Licks]

Noice freaking post!

[u/Zgyliar]

Why doesn't this exist for walls ?

It would change life in the cities.

[u/blowsuck]

Noise cancelation implies phase cancelation. Opposite sound waves cancel eachother thus resulting in nothing, so no sound.

Understanding basic phisics and what sound is (basicaly a perturbation or vibration of particles at certain frequencies) will help to easily understand how sound works.

Also a tip: they way you hear your own voice when speaking is actualy not how your voice actualy sounds in reality, you're mostly hearing your skull's vibrations when speaking. Other people, or microphones, can actualy hear/capture the actual tone of your voice just as you hear other people's voices.

[u/hydraSlav]

I tried ANC on multiple headphones. The "inverted" wave they generate puts so much pressure on the eardrum, I can't keep it for longer than a few minutes.

[u/penguins_are_mean → u/hydraSlav]

It bothered me at first too but I got used to it pretty quick. But it was very uncomfortable to start with.

[u/TheGrimDark]

Someone send this to Rowan

[u/ThisAnything9453]

Isn't that like anti-sound?

[u/gweeb177013]

Those are good headphones, the dt 770 pro is one of my best headphones and work very nicely

[u/mjaramillo11]

Is it similar for noise canceling microphones?

[u/Hefty-Cat-5277]

Can we implement this in wired earphones?

[u/basiroti06 → u/Hefty-Cat-5277]

Wired ones don't have that much space to implement all this technology I think that's why ,, still apple airpods have this I think , I never used them so can't confirm

[u/Hefty-Cat-5277 → u/basiroti06]

I am using apple earpods(wired ones). No, it doesn't support noise cancellation.

[u/guts80]

Original Video:
https://www.youtube.com/watch?v=cVJAVqwi8dE

[u/DXB_DXB]

So if someone can explain this to me. 

Is this the same as what the other person hears? 

Like I don't want noise cancellation for my ears. Infact I want to hear what's happening around the office but I don't want the peron whom I'm taking to on teams or the phone or whatever app I'm using to hear the office sounds and voices. 

Are both of these features called noise cancellation?

[u/GhostFK123 → u/DXB_DXB]

I believe you are referring to Background Noise Removal. It probably works similar but, likely adjusts the microphone input as opposed to the headphone output.

I am not an expert... Just guessing

[u/BeerBaj]

what a shit explanation lol

[u/StinkingShitty → u/BeerBaj]

Aww he doesnt understand it. :(