I’m curious, how many people are aware of these sounds. I have designed, etched, and built my own switching power supplies along with winding my own transformers. I am aware of the source of the noise. So, does anyone else hear these high frequency sounds regularly?

  • AFaithfulNihilist@lemmy.world
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    5 months ago

    My father used to make fun of me for saying that I could hear the TV on even if it was muted, or that I could hear the furnace ‘scream’ before it came on.

    One year, I got as a gift for Christmas, a handheld recorder and a fancy microphone from my stepfather a university music professor And that recorder could actually record the sound which he was able to show me on the computer.

    That was like 25 years ago, I’ve been working with computers ever since, and now I am familiar with many many many devices that make high pitch whines.

    • MTG8175@lemmy.ml
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      5 months ago

      The TV thing, from what I’ve gathered, is normal in kids and lasts up until your 30s or somewhere around there. After that your ears just can’t pick up that pitch anymore.

    • Apathy Tree@lemmy.dbzer0.com
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      5 months ago

      My favorite is when the ringing from power resonates with the tinnitus and ends up with an oscillating tone. Drives me absolutely insane.

  • Aux@lemmy.world
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    5 months ago

    I used to hear all these sounds, but I’m 40 now so I don’t hear them anymore.

  • SecretPancake@feddit.de
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    5 months ago

    Yes some of my smart bulbs make that sound when they’re off or on low power. I’m 38. I do have a mild tinnitus as well but it’s on a different frequency so I hear the difference.

    • Hugin@lemmy.world
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      5 months ago

      Same I used to be able to tell when my boss shorted his board by the sound of the power supply going into overregulation. Now it’s just eeeeee all the time.

  • FireWire400@lemmy.world
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    5 months ago

    Despite me having tinnitus, I hear those sounds very clearly in quiet environments. They annoy the crap out of me…

  • cpw@lemmy.ca
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    5 months ago

    I used to hear tv tubes, power supplies and all sorts of high frequency noise. These days I mostly just hear tinnitus. EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE

  • squiblet@kbin.social
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    5 months ago

    Yes, I can hear them. Usually it’s not a problem but I have had 1-2 power adapters that annoyed me.

  • TonyTonyChopper@mander.xyz
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    5 months ago

    Yes. They drive me nuts. My family had a PC that would buzz whenever you moved the mouse. We have a bunch of cheap LED lamps in my apartment and every one has an especially loud transformer.

      • michael_palmer@lemmy.sdf.org
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        5 months ago

        The CPU itself doesn’t produce sound, but inductors (coils) can. Therefore, when you move the mouse, the CPU power increases, potentially causing inductors to go into resonance.

  • TheDoozer@lemmy.world
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    5 months ago

    It is never quiet enough in my house to hear myself think without difficulty, so it definitely never gets quiet enough for that.

  • autumn_rain@lemmy.world
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    5 months ago

    I’m 56, wear earplugs at night, and still hear an intermittent electrical noise. It’s not a high-pitched whine, more like a low hum. I live in an apartment complex so it’s likely the wiring. I have hyperacusis.

    • dakd2@lemmy.world
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      5 months ago

      I remember sometimes waking up in the middle of the night and start noticing/hearing a loud as fuck deep humming sound that seems to have some kind of hearthbeat if I just stand laying on bed doing nothing, I have lived in totally different places and I remember hearing the exactly same sound sometimes at night I just seem to notice that happens the same day I would go hiking to certain place, everytime I notice the sound at night it feels like the sound is leaking itself through the walls and reverbs like being inside something like a water pipe