• I wanted to get a noise meter for a long time now, but they’re expensive. A lot of daily things just sound… potentially dangerously loud. Public transit, for example.
    I want something that can go a least up to 20kHz, most do just up to 8kHz. There’s one supermarket I was at once that had some “repeller” which felt painfully loud. It kept changing frequencies, lowest at 15.5kHz when I checked with my phone. I was considering throwing a rock/brick at it while waiting there, but hiding behind a corner seems fine enough with higher frequencies.

    • [object Object]@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      edit-2
      5 hours ago

      supermarket I was at once that had some “repeller”

      Sounds curiously close to them ‘teenager repellents’ that emit high-pitched noise which older ears can’t hear.

      • smh@slrpnk.net
        link
        fedilink
        arrow-up
        1
        ·
        2 hours ago

        I’m excited for when my ears get old enough to not hear those. At 40 years old and I still get a headache from them.

        At least as an adult I can leave when they’re around. My grandparents had one to repel rodents. They were shocked I’d always want to hide away and read instead of being in the room next to the repeller.

          • smh@slrpnk.net
            link
            fedilink
            arrow-up
            1
            ·
            39 minutes ago

            I already have intermittent tinnitus, as does my partner. “Is that noise tinnitus or do you hear it, too?” is a common question in our household :(