Submitted 2 months ago by zaphodb2002@sh.itjust.works to [deleted]
I assume it has something to do with the sound cancelling. It uses white noise or something, right? I’m running out of nails to test this.
A static type sound can occur while biting where you eustachian tubes are cleared. The same thing can happen when yawning (it is why yawning is encouraged when feeling inner ear stress while taking off in an airplane).
It happens without earbuds too, but might be more noticable
Think of noise as a sine wave on a Cartesian plane (the X-y graph you used in math class). The noise goes up and down so that y=1 at the max and y=-1 at the minimum.
What happens if we add 1 when y=1? Well, now it’s 0. And what happens if we add -1 when y=1? It’s 0 again. That’s basically what noise cancelling does. It adds the “opposite” to make the sound equal 0. That’s super layman’s terms, but I hope it makes sense. It’s basically trying to make the opposite of whatever it hears.
But when something is physically touching your body, your ears can’t absorb that “opposite” sound because the original sound is kind of already absorbed in your body, if that makes sense?
What happens if we add 1 when y=1?
I assume you meant “What happens if we add 1 when y=-1?”
Yup, thanks. Fixed
Don’t know…but maybe don’t bite your nails. Just in general.
Oh wow, what helpful advice. Please dispense more wisdom, oh mystical sage!
Or maybe actually don’t. Just in general.
True, but not an answer to their question.
noise cancellation should be better at adjusting for sounds which occur for longer periods of time. it takes time to calculate the inversion, the amplitude, the frequency, the emission and line them up.
What does popcorn sound like?
I’d guess, bone conduction. Your noise cancelling can’t cancel that.
TranquilTurbulence@lemmy.zip 2 months ago
The noise cancelling headphones are listening to noise coming from the outside and cancels them out. When the source of the sound is in your mouth (see also: bone conduction), the headphones can’t hear or cancel that sound. In a situation like that, noise cancelling fails and you hear the inverted noise that is supposed to cancel the usual background noise.
deranger@sh.itjust.works 2 months ago
AirPods Pro & Max have internal noise cancellation. It doesn’t work perfectly of course, but it’s noticeable when toggling between transparency and NC in a quiet room where I can hear my heartbeat in my ears, when I’m chewing something crunchy, or when I’m using my electric toothbrush.
support.apple.com/en-us/108918
TranquilTurbulence@lemmy.zip 2 months ago
Theoretically, that could help a little bit, but it won’t change the fact that the ear canal is only the gateway to the organ where hearing actually takes place. Due to bone conduction, the crunchy noises can take a shortcut and bypass the outer ear completely.