this post was submitted on 17 Feb 2024
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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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[–] [email protected] 3 points 9 months ago

Not after I stopped buying cheap power supplies.

[–] [email protected] 3 points 9 months ago

My friends and I used to drive out to an area of the desert, away from people and the general noise of civilization. However, there were large power transmission lines going through the area and we could listen to them crackle in the night as we watched the stars. Just a nice way to relax and get away from it all.

[–] [email protected] 3 points 9 months ago (1 children)

I can’t of anything that makes an unwanted sound. Old CRT TVs used to, but I haven’t used one in years. My monitor at work makes a sound when it turns on or off (I believe there’s an ass-old fuse in there), but it makes no sound otherwise.

I’m still young and hear very well, as exemplified by my annoyance of half-closed bottles of carbonated drinks, which do make a sound.

[–] [email protected] 2 points 9 months ago* (last edited 9 months ago)

I did a lot of stuff with CRT’s during ‘Rona and man sometimes that whine just pierced my ears - my dog (RIP love ya bud) would just look at me and slowly walk off every time lol

[–] [email protected] 2 points 9 months ago
  • Belkin travel surge protector
  • 5-port USB hub
  • wireless charger

Thankfully none else!

[–] [email protected] 2 points 9 months ago

Yes, but generally only bad quality loud ones.

[–] [email protected] 2 points 9 months ago

Yes, but a bit less as I've aged probably because the higher frequency hearing we have starts to diminish the older we get.

[–] [email protected] 2 points 9 months ago

I did when I was younger but I don't hear it since I hit around 30

[–] [email protected] 2 points 9 months ago

I hear some of them. There's a real cheap one my parents got with a security camera thats real loud to me, but they don't hear it.

[–] [email protected] 1 points 9 months ago

Since I got older this got better. One benefit I guess?

[–] [email protected] 1 points 9 months ago

I used to think I do, but I convinced myself I have a tinnitus.

[–] [email protected] 0 points 9 months ago (6 children)

Where can I get what you are having?

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