• Virkkunen@fedia.io
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      4 months ago

      Maybe you need to get checked for tinnitus, because it’s literally impossible for humans to hear that frequency of ultrasound

      • histic@lemmy.dbzer0.com
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        4 months ago

        Not necessarily I have tinnitus but certain ultrasonic sounds I can hear that are at the lower range of ultrasonic

        • Audacious@sh.itjust.works
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          4 months ago

          Can you hear electronics hum? I can, especially when it’s quiet. Doing hearing tests, I would hear when they turned on the sound, but not be able to hear the actual sound. Idk what it is, but pretty sure it’s not ultrasonic sounds.

          • histic@lemmy.dbzer0.com
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            4 months ago

            I can, certain alarm clocks I can hear tick or my gtx 970 had a capacitor issue that I heard for awhile before it gave up. Certain ultrasonic dog toys and whistles I can hear as well. Fun fact on things humans shouldn’t technically be able to do you can also see infrared light under certain conditions.

    • evo@sh.itjust.works
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      4 months ago

      Uh huh… The Oxford definition literally says that’s untue.

      of or involving sound waves with a frequency above the upper limit of human hearing

      • smeg@feddit.uk
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        4 months ago

        Not everyone has the same hearing range (it tends to get worse as you get older, hence those ultrasonic teenager repellers that people claim are for cats). If a device is running at the very low end of what we consider ultrasound and OP can hear higher than most then maybe they can hear the sensors. I would be surprised if an ultrasonic sensor was running this low though.

        • scrion@lemmy.world
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          4 months ago

          People often believe they are hearing ultrasound, but instead are hearing clicking noise or sub-frequencies emitted from the capsule that are not actually part of the ultrasound.

      • melroy@kbin.melroy.org
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        4 months ago

        sorry I can still here it… I sometimes needs to go to the hospital for a check-up on my heart, and I can hear the ultrasound if the device is going over my head.