Even past 30 and with (mild) tinnitus, yeah my hearing is still great so I'm going to hear it. Light bulbs, chargers, the router etc.

Recently my computer's PSU has started randomly buzzing a not-quite-high frequency. It could be age (it's from 2019) though I'm pretty sure it's some kind of interference because sometimes it won't make any noise at all for days and I'm pretty sure my light bulb (an LED filament bulb which doesn't have much in the way of components) seems to also make different pitches of buzzing that coordinates with how much my computer PSU will buzz.

Anyways it bothers me, so as soon as I post this I'm going to power-down and unplug my computer and switch to a different device for the next day or so.

• Belkin travel surge protector
• 5-port USB hub
• wireless charger

Thankfully none else!

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

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.

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

Yes, but generally only bad quality loud ones.

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

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

Where can I get what you are having?