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Do you often hear the ringing of switching power supplies and devices when you are in a quiet space? (lemmy.world)

submitted 9 months ago* (last edited 9 months ago) by j4k3@lemmy.world to c/asklemmy@lemmy.ml

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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?

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[–] MTG8175@lemmy.ml 10 points 8 months ago (2 children)

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.

[–] Toribor@corndog.social 7 points 8 months ago

CRT TV's stopped being common at the same time I was aging into the range that would be unable to hear their distinctive whine.

[–] GrayBackgroundMusic@lemm.ee 3 points 8 months ago

I'm 40s and can pick it up sometimes. Depends on the TV.