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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[–] Sanctus@lemmy.world 6 points 9 months ago

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

[–] Fisch@lemmy.ml 5 points 9 months 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.

[–] Player2@lemm.ee 4 points 8 months ago

Yes all the time

[–] ImplyingImplications@lemmy.ca 4 points 9 months 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 9 months ago
[–] bleistift2@feddit.de 3 points 9 months ago

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.

[–] sylver_dragon@lemmy.world 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.

[–] VelvetStorm@lemmy.world 3 points 9 months ago

I can hear my phone charging.

[–] avidamoeba@lemmy.ca 3 points 8 months ago

Not after I stopped buying cheap power supplies.

[–] Nanomerce@lemmy.world 3 points 8 months ago

I have like 2 USB chargers that are really loud.

[–] brbposting@sh.itjust.works 2 points 9 months ago
  • Belkin travel surge protector
  • 5-port USB hub
  • wireless charger

Thankfully none else!

[–] Kit@lemmy.blahaj.zone 2 points 9 months ago

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

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