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

  • aksdb@feddit.de
    0·
    1 year ago

    Don’t the soundwaves cancel each other out?

    Anyway my bigger fear would be a short hiccup or outright malfunction and suddenly you stand unprotected within loud machines.

    • Death_Equity@lemmy.world
      0·
      1 year ago

      Noise cancelling earbuds or similar do not protect your hearing.

      They do not make a loud noise quiet. It does not matter if they are working or not. All they do is make noise seem quiet, you are still being exposed to the same level of noise.

        • Death_Equity@lemmy.world
          0·
          1 year ago

          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.

          • aksdb@feddit.de
            0·
            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.