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What cheap tool/gadget do you use that greatly improves your daily life? (lemmy.world)

submitted 1 year ago by [email protected] to c/[email protected]

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Just went down the aliexpress rabbit hole again. Theres really everythinf for some of really niche things that i wouldnt ever buy, but some things really do look appealing. I wonder what do you guys use daily thats worth lets say under $20

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

Do you have sources backing your claim?

Here is one backing mine: https://hillhearbetter.com/do-noise-cancelling-headphones-protect-hearing/

[–] [email protected] 0 points 1 year ago (1 children)

From your source:

While noise-canceling technology can effectively reduce the perception of external sounds, it does not necessarily eliminate the potential for hearing damage.

In noise-canceling headphones, a microphone captures external sounds, and the internal speaker generates a counteracting sound wave that is 180 degrees out of phase. This process effectively nullifies the external sound at ear level. However, it is important to note that the sound pressure from external noise sources still exists even with active noise cancellation in place.

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

Yes, but you said "seem quiet". No. It actually cancels the sound waves. So if it's quiet, it's quiet. The pressure is a different problem.