this post was submitted on 04 Sep 2024
45 points (97.9% liked)

No Stupid Questions

35863 readers
1141 users here now

No such thing. Ask away!

!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)


Rule 1- All posts must be legitimate questions. All post titles must include a question.

All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.



Rule 2- Your question subject cannot be illegal or NSFW material.

Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.



Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.



Rule 4- No self promotion or upvote-farming of any kind.

That's it.



Rule 5- No baiting or sealioning or promoting an agenda.

Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.



Rule 6- Regarding META posts and joke questions.

Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.

On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.

If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.



Rule 7- You can't intentionally annoy, mock, or harass other members.

If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.

Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.



Rule 8- All comments should try to stay relevant to their parent content.



Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.



Rule 10- Majority of bots aren't allowed to participate here.



Credits

Our breathtaking icon was bestowed upon us by @Cevilia!

The greatest banner of all time: by @TheOneWithTheHair!

founded 1 year ago
MODERATORS
 

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.

all 18 comments
sorted by: hot top controversial new old
[–] [email protected] 24 points 2 months ago* (last edited 2 months ago) (1 children)

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.

The headphones should still cancel the background noise as usual, but they can’t cancel whatever noise is coming from your mouth. I wonder if this mismatch could result in some noise getting through?

If you’re wearing buds, the seal could become inadequate while your jaw is moving, so that could also explain some of the noise.

[–] deranger 2 points 2 months ago* (last edited 2 months ago) (1 children)

Some headphones now have internal noise cancellation, such as AirPods Pro and Max. I can hear it working when I’m chewing something crunchy or when I’m using my electric toothbrush and toggling between transparency and NC modes. Kinda curious if some other cans have this as well, it’s a nice feature. There are microphones inside the cup listening to internal sounds and cancelling those out as well as external sounds.

[–] [email protected] 1 points 2 months ago (1 children)

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.

[–] deranger 2 points 2 months ago* (last edited 2 months ago) (1 children)

It still works pretty well, not as effective as regular external NC of course, but the difference between transparency and isolation modes when chewing crunchy foods or using my electric toothbrush is very noticeable. Now I’m going to have to do a bit of an experiment with bone conduction headphones from a friend and ANC mode to see how well it’s working.

[–] [email protected] 1 points 2 months ago

Sounds really cool. Let me know how that works out.

[–] [email protected] 11 points 2 months ago* (last edited 2 months ago)

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.

I can personally pop those voluntarily, as I'm a scuba diver, and you have to clear your ears quite frequently.

[–] [email protected] 9 points 2 months ago* (last edited 2 months ago) (1 children)

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?

[–] [email protected] 7 points 2 months ago (1 children)

What happens if we add 1 when y=1?

I assume you meant “What happens if we add 1 when y=-1?”

[–] [email protected] 5 points 2 months ago

Yup, thanks. Fixed

[–] [email protected] 6 points 2 months ago (1 children)

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?

[–] [email protected] 4 points 2 months ago

It goes "pop, pop, pop," then "crunch, crunch, crunch."

[–] [email protected] -3 points 2 months ago (3 children)

Don't know.....but maybe don't bite your nails. Just in general.

[–] [email protected] 5 points 2 months ago

I will not accept any answer that doesn't begin with "Think of noise as a sine wave on a Cartesian plane...."

[–] [email protected] 3 points 2 months ago (1 children)

Oh wow, what helpful advice. Please dispense more wisdom, oh mystical sage!

[–] Reverendender 0 points 2 months ago

Or maybe actually don’t. Just in general.

[–] [email protected] 2 points 2 months ago

True, but not an answer to their question.