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?

  • MechanicalJester@lemm.ee
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    10 months ago

    Not anymore.Age.

    When I was a kid I hated going to the city art museum because all the humidity and temperature control devices emitted this awful high frequency noise that made me nauseated.

    I can’t hear the “mosquito” pitch noise emitters used to deter teenage loitering in some cities anymore. I kept that longer than I thought I would.

    • Peppycito@sh.itjust.works
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      10 months ago

      I had to throw out my carbon monoxide detectors. The constant beeping was giving me a head ache and making me nauseous.

      /🥁