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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[–] TheDoozer@lemmy.world 6 points 2 years ago

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

[–] Nemo@midwest.social 6 points 2 years ago (1 children)

I can't hear it but I can often tell when it clicks over because it causes a spike in my tinnitus.

[–] LazaroFilm@lemmy.world 5 points 2 years ago

I have tennis and can still hear the noise. It’s weird. I have that background noise but I can still separate it from the other sounds around me. I actually went to do an audio test recently and had perfect hearing except I that I also hear extra things. Annoying as hell.

[–] Sanctus@lemmy.world 6 points 2 years ago

I really only notice them when the rest of the room is silent. Otherwise my brain ignores the sound most of the time.

[–] SLO@lemmy.world 6 points 2 years ago (2 children)

We have a VR system set up in our living room. I don't even want to talk about how long it took me to figure out the receivers were making a steady, high pitched noise. There are 4 of them and they are situated near the ceiling.

I hear it from a lot of things when it's quiet enough. Clock radios, tvs, monitors, my pugmill, heaters. There was a noisy power strip with a flashing one-off switch that I'm still convinced was going to kill someone.

I DON'T know anything about electricity - so mostly it makes me anxious that my house is going to burn down. I have bad enough hearing loss that I have to use closed captions on my TV - but it IS mostly because deep voices are extremely muddled. I'm surprised a bit by how many "not really" answers I see.

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[–] Appoxo@lemmy.dbzer0.com 5 points 2 years ago

My monitor has a power led that blinks when in stand by (and not receiving a signal.
And the coil whine between the onn/off-switching is audible.

[–] Fisch@lemmy.ml 5 points 2 years ago

When my monitor is on stand-by the led slowly blinks and every time it turns on I can hear it. Aside from that, I don't think so.

[–] Lath@kbin.social 5 points 2 years ago (1 children)

Ugh. Now you got me thinking about hearing my heart beats.

[–] clif@lemmy.world 4 points 2 years ago (1 children)

Next you'll start seeing your nose

(Sorry)

[–] metaStatic@kbin.social 3 points 2 years ago (1 children)

And now I can taste my tongue

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[–] ImplyingImplications@lemmy.ca 4 points 2 years ago

Everyone with fully functioning ears can hear it if they pay attention. Just a reminder to protect your hearing!

Inside your ear are hair cells that detect sound. You're born with the only hair cells you'll ever have, and damage to them is irreparable. Hair cells naturally sustain damage over time and people's hearing decreases as they age. This process is accelerated if someone constantly listens to things at loud volumes. So, maybe don't turn it up to 11!

[–] berryjam@lemmy.world 4 points 2 years ago
[–] Player2@lemm.ee 3 points 2 years ago

Yes all the time

[–] bleistift2@feddit.de 3 points 2 years 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.

[–] BolexForSoup@kbin.social 2 points 2 years ago* (last edited 2 years 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

[–] Nanomerce@lemmy.world 3 points 2 years ago

I have like 2 USB chargers that are really loud.

[–] VelvetStorm@lemmy.world 3 points 2 years ago

I can hear my phone charging.

[–] avidamoeba@lemmy.ca 3 points 2 years ago

Not after I stopped buying cheap power supplies.

[–] sylver_dragon@lemmy.world 3 points 2 years 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.

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