High-pitched buzzing sound/noise with Apple Studio Display

Same probleme here.

Got my Monitor for almost 3 Days.

The buzzing noise comes around 7pm - continously - it won't stop. Its quiet annoying - im sitting 1m away from the screen and I get a bad headache from it. I returned it - I hope to get a good one...

The funny thing is during day - no problem - it starts around 7pm.

I can't figure out the source of the interference.

So sad - its such a nice monitor!

I had a similar issue where the noise presented itself when connecting the Studio Display. I couldn't hear any noise from the monitor itself, but it presented itself as soon I plugged in my external speakers wired to an audio interface. I experienced a lot of high-pitched buzzing sounds. I agree that there's an issue with this monitor's power supply or, more precisely, with the power isolation.

What worked for me and might help those who experience the same issues with a similar setup (audio interface + external speakers), was to use a ground loop noise isolator. I purchased the following device and now it's dead silent. It's a shame of course that after purchasing a premium class monitor you have to go down the path of troubleshooting and doing extra purchases.

I noticed exactly same issue 2-3 months after purchase. The noise comes from the top speaker while the fan runs. It sounds like an electrical buzzing sound. It goes away when the fan is off. Apple should recall the display and provide an updated one soon!

I have the same problem. Had a talk with Apple Customer Service. They told me to bring it in for repair at the next Apple Support Place (Gravis for me). They also told me that only very few customers have this problem. Anyhow, searching through the internet tells a different story…

i read saw an article with some strange advice from an electronic site.

There was mentioned that it can have an impact on buzzing sounds if you film the phases. Means, pull out plug, rotate 180° and plug back in. Not sure if this applies to any plugs outside EU. But here it's possible.

I didnt try it yet, because it sounds so stupid... And thoughts on that flipping phase stuff?

I conducted some tests as read users of the LG UltraFine Display complaining about buzzing sounds when a Wifi router was standing close the display.

I have a 5G Wifi6 router. After moving it a few meters away from the Apple Studio Display and disabling Wifi6 (using Wifi5 only now) the noise seemed to disappear. Can anyone else with a Wifi6 router confirm that this works?

... this is annoying though because the speed is dramatically slower on Wifi5 than Wifi6.

I have the same problem. When my boyfriend is in the other room and uses his laptop via power adapter my studio display starts to make a buzzing noise from the top left of the display. When we unplug his laptop the sound goes away immediately.

I got my Studio Display yesterday and immediately noticed this buzzing sound when I plugged it into my MacBook Air. The exact same noise that the OP described. It also happens when I plug it into a MacBook Pro.

After reading some of the replies here, I tried plugging my MacBook Air into its own power adapter to see what happened. And, to my surprise, as soon as I plugged in the USB-C cable, the buzzing sound stopped. What's weird is that the power supply wasn't even connected to the outlet. It's been a few minutes, and the buzzing sound didn't come back, even after unplugging the USB-C cable from the MacBook Air. I also tried unplugging the Studio Display and plugging it into my MacBook Pro, and no signs of the buzzing sound.

Really interesting Marco, I'll give it a try as soon as my Studio Display will start buzzing.

My buzzing patterns btw are incredibly constant: Monday and Tuesday evening each week. I've also tried disconnecting each appliance/light in the apartment discovering that they are not affecting the buzzing at all. Moreover I'm using an APC EMI/RFI filtered power plug and that too is not helpful in avoiding the buzzing of the Studio Display.

The buzz itself is really strong and behind the display you can ear it loud and clear even at a distance of 3m from it.

For a monitor that I've payed 1.799€ it's a shame.

For me it is a shame that Apple does not even care about this issue...

I also bought a small APC (Line-Interactive-UPS) because I thought that this might help removing the buzzing. Had no luck with it. Next I will try the tip by Marco.

Update: Connecting the power-supply when buzzing does not change anything for me..

Mine is not as loud, but I can definitely hear it. I think I can live with it if it continues sounding like this, but I'm worried it might get worse over time. Does yours always sound the same, or does the buzz noise increase depending on other factors?

Definitely a shame for a monitor that costs so much.

same problem....

with both macbooks i tried (16" m1max & 14" m1pro)

it is annoying. whenever its possible i work with the built in 16" macbook display instead of connecting it to the bigger studio display. thinking about a return

What a joke! I just received a brand new screen today and have the exact same issue.

If I turn off everything electrical in the house just leaving the apple studio display on, the noise completely stops.

Sorry but £1500 for a screen which screams 24/7 and highly reactive to its environment is not a good deal and will be returning.

I was tracking a HAM radio operator's frustration with RF emanations her set up was capturing that as best she could tell by timing analysis and predictability were originating from a neighbor's Tesla charging/and/or the Tesla power wall battery. It appears there may be some very dirty/sloppy electrical shielding issues with those Tesla components, but still not definitively diagnosed.

Just spoken to Apple Support. Senior Specialist confirmed it's a known issue with no current resolution.