High-pitched buzzing sound/noise with Apple Studio Display

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.

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.

Yeah I found that as well, making the brightness 100% would fix the problem. Its so sad that apple hasn't fixed this issue yet. It's been a known issue for months now. I'll bet Apple will just sweep this under the rug, They will just release a new version with new internals only quietly. They've done this before.

Link to my issue:

https://www.youtube.com/watch?v=zZ0WMgZgnyI

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.

There is a major fault with the power supply. I’ve been through 3 of them all with the same issues. Loud buzzing sound coming from the top of the monitor when the brightness is below 2/3rds full. Video link supplied: https://youtu.be/zZ0WMgZgnyI

I tried going through apple support and ended up talking to someone in the USA. All Apple wanted to do was take the monitor off me and send it to be pulled apart and investigated. They couldn't guaranty me when I would be able to get another replacement.

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.

I was able to fix the noise by unplugging the monitor for 12 hours from the power source and thunderbolt connection and reconnect it

Noticed a few odds.

1. 100% brightness is affecting the issue, but doesn't alwasys removes the noise. In some cases 100% may have the noise and 90% may not. Low brightness always has noise.
2. Noise depends on workload of my macbook air. I started/stopped CPU-intense bench and see that CPU load can do noise, or at least can affect something (screen is not changing at that time). May be there's some radio pickup coming from macbook to display through TB cable. idk

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.

Same here, making brightness 100% removes the noise. But who wants it.

I would take it back to apple and complain. I’ve been in contact with several apple news website. Some said they will be looking into and writing articles on the issue after the new iPhone announcement.

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…