Question studio monitors buzzing

[lyriccs]

hello everyone, I just built a new gaming pc and everything is great except for the annoying sound from the speakers. the sound card is fine, as are the speakers, cables, I tried to change and combine everything and the problem did not stop. I tried replacing the entire motherboard today and nothing. I really can't help myself anymore. when I connect the sound card together with the monitors to my macbook, everything is ok. So the problem must be somewhere in the PC, but I don't know where...
link where I tried to record : https://www.uschovna.cz/zasilka/OO7ISCLFHP4FHN5T-48S/
I will be grateful for any advice

 

[Lutfij]

Welcome to the forums, newcomer!

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.
Include the studio monitors you're speaking of and any other audio equipment.


As for you setup, have you verified if you've got a grounding issue in your room? Do you feel a mild tingling sensation when you touch the metal part of your case and your feet are making contact with a tiled(non-wooden, non-carpeted) floor?

 

[lyriccs]

Im sorry and thank you
PC specs here :

Motherboard : Gigabite B650M D3HP BIOS F22b
CPU : AMD Ryzen 5 7600
GPU : SAPPHIRE PULSE Radeon RX 7800 XT Gaming 16GB
CPU Cooler : Endorfy Fera 5
Ram : Corsair 32GB KIT DDR5 6000 MHz CL36 EXPO
SSD : SSD Lexar NM710 1TB
PSU : Seasonic Core GM750 Gold
External Sound Card : Focusrite Scarlett Solo 3rd gen
Monitors : KRK Rokit 5 G4
Mouse : Razer Deathadder Essential
Keyboard : Dark Project DPO 87
Monitor : LCD 27 ASUS TUF VG27AQL1A
PC Case : DeepCool CC360 ARGB
OS : Windows 11 Pro

everything is the same old as a month old brand new
I don't have any grounding issues in the room
I have a pc case on a wooden floor and I don't feel any mild tingling sensation

 

[dwd999]

Did you try unplugging the asus monitor from the wall just in case there's leakage from that? Also unplugging the keyboard just in case there's leakage from its lighting system? Besides the PC in its case what other devices are nearby besides the keyboard and asus monitor? The mouse? headphones? Anything else that could be interfering?

 

[lyriccs]

Hi, I tried turning off both the monitor and everything else. Only the sound card was connected to the PC and it was still buzzing.
around the pc I have a pair of headphones, a TV, a fridge, a wifi router and a soundbar. however, after connecting the same sound card in the same place to the macbook, it is fine
it's very strange

 

[lyriccs]

Anyway, I've come up with another thing now. I turned on the game and in the game the buzzing suddenly gets 10x louder and I played with the Vsync setting and when I had it off it almost beeped but when I turned it to half the sound got a lot weaker... it was still louder than when I just like that on the PC desktop, but it seemed strange to me.. But I don't know what effect it has and why it is like that