UXyes
UXyes t1_j2dz0a9 wrote
Reply to comment by FormallyKnownAsKabr in Eli5 How exactly does Noise cancellation work? That too in such small airbuds by Professional-Ad3441
Whelp. I replied to the wrong comment. Lol
UXyes t1_ixuir76 wrote
Reply to comment by Rahdit42 in All Quiet On The Western Front (2022) by Impressive-Sea3221
Yeah. It came out like a month ago: https://en.wikipedia.org/wiki/All_Quiet_on_the_Western_Front_(2022_film)
UXyes t1_ixfzhin wrote
Reply to comment by BalticsFox in 'Tokyo Vice' Season 2 at HBO Max Casts Takayuki Suzuki by MarvelsGrantMan136
No. It was trash after the first season.
UXyes t1_ivd3rwq wrote
Reply to comment by Careless_Bat2543 in Examining 100,000 crime-related posts from 14,000 Facebook pages maintained by U.S. law enforcement agencies between 2010 and 2019, researchers found that Facebook users are exposed to posts that overrepresent Black suspects by 25% relative to local arrest rates by giuliomagnifico
I assume there are more confounding factors with crime rates.
UXyes t1_j2dz486 wrote
Reply to comment by theperfectmuse in Eli5 How exactly does Noise cancellation work? That too in such small airbuds by Professional-Ad3441
Sound waves or vibrations are very small and air is very thin and mostly invisible. It’s easier to understand/imagine using something you can see, like big slow (compared to sound) waves in water.
Next time you’re in a pool or bath or whatever, put your hand flat on top of the water and start moving it up and down in a rhythm to make some sustained waves. Once you’ve got that going, start changing your rhythm and you’ll see that some changes make the waves bigger by amplifying the existing motion or energy in the water, and some changes make the waves smaller by going against the existing wave.
Now think about how there’s a perfect adjustment to that rhythm that will cancel out the existing wave entirely. That’s what’s going on with sound in the air that gets canceled by an “opposite” sound. It’s an opposing wave calibrated just right to cancel the other one.