Asklemmy

43940 readers

680 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

Open-ended question
Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
Not ad nauseam inducing: please make sure it is a question that would be new to most members
An actual topic of discussion

Looking for support?

Looking for a community?

Lemmyverse: community search
sub.rehab: maps old subreddits to fediverse options, marks official as such
!lemmy411@lemmy.ca: a community for finding communities

~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~

founded 5 years ago

MODERATORS

398

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

149 comments fedilink hide all child comments

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?

you are viewing a single comment's thread
view the rest of the comments

[–] Illuminostro@lemmy.world 17 points 9 months ago (2 children)

I play electric guitar a foot from my computer. I hear all kind of noises through my amplifier. Scolling with my wired mouse makes a noise through it. I also know my phone is goimg to ring before it does because the cell,signal makes a noise through mu computer speakers.

[–] IronicDeadPan@lemmy.world 5 points 9 months ago (1 children)

Cell phone incoming signals: dit dit dit...dit dit dit...dit dit dit...buzzzzzzzzzz..dit dit dit...buzzzzzz...ringtone.

[–] Illuminostro@lemmy.world 1 points 9 months ago

Exactly.

[–] folkrav@lemmy.ca 2 points 9 months ago* (last edited 9 months ago) (1 children)

Curious. I thought that buzzing from cellphones was TDMA induced, which isn’t really a thing since… LTE, I think? I’m wondering why you still get this. Older phone, older network/infra…?

[–] Illuminostro@lemmy.world 1 points 9 months ago (1 children)

You're correct that it's not the high pitch sound from the old days. Now it's more like a,low pitch hum. But it's still there.

[–] folkrav@lemmy.ca 1 points 9 months ago

Interesting! I haven’t had this happen with any speaker or amp in a good decade. I wonder what it is!