That story explains why I dislike led lights

  • lolcatnip
    link
    fedilink
    English
    arrow-up
    11
    ·
    edit-2
    6 months ago

    This article seems sus to me. It describes a bunch of ways to observe high-frequency flicker that, IME, just aren’t a problem. Personally I find flicker stops being a problem above about 60 Hz. I’m sure the threshold varies for different people, but I can’t fathom how anyone could be bothered by a 2000 Hz flicker as the article seems to suggest.

    Also, for reference, back before first screen TVs, TVs all flickered at 50 or 60 Hz depending on what country you were in.

      • Snot Flickerman@lemmy.blahaj.zone
        link
        fedilink
        English
        arrow-up
        26
        ·
        6 months ago

        This is like those people who don’t get headaches and nausea when they watch 3D movies telling people who do get headaches and nausea from watching 3D movies that “it’s not that bad!”

      • Beardedsausag3@kbin.social
        link
        fedilink
        arrow-up
        2
        ·
        6 months ago

        They stated “IME” and “personally”, understanding thresholds vary per person… but you gloss over that just to try and create an argument. I bet you have blue hair.

        • sbv@sh.itjust.works
          link
          fedilink
          English
          arrow-up
          18
          ·
          6 months ago

          The upthread comment says:

          but I can’t fathom how anyone could be bothered by a 2000 Hz flicker as the article seems to suggest.

          What does this part of your comment mean?

          I bet you have blue hair.

          • 9point6@lemmy.world
            link
            fedilink
            arrow-up
            8
            ·
            6 months ago

            What does this part of your comment mean?

            It’s actually a helpful notice to disregard everything they’ve said.

            • lolcatnip
              link
              fedilink
              English
              arrow-up
              2
              ·
              6 months ago

              Yeah, I can’t upvote that even though the comment is in my defense.

    • MagicShel@programming.dev
      link
      fedilink
      arrow-up
      16
      ·
      6 months ago

      You could hear a 2kHz flicker. It would hurt my head for that reason. I also have certain monitors and earbuds that I can hear the power led and hate it.

    • cybervseas@lemmy.world
      link
      fedilink
      English
      arrow-up
      10
      ·
      6 months ago

      Even a 2kHz rate can be a problem when the implementation is cheap and you get weird harmonics that distort the PWM and might create lower frequency flicker. I’m thinking interactions between cheap power supply voltage/current ripple and LED PWM. I personally don’t know enough about this kind of LED implementation to say what could or couldn’t be happening.

      • lolcatnip
        link
        fedilink
        English
        arrow-up
        2
        ·
        6 months ago

        I meant at or above. I never had problems with NTSC displays running at 60 Hz.