Metallic background noise

Hello,
Can someone please help me with very irritating background noise that I get when I record audio on my Yeti microphone?

I have no idea where is this coming from, it shows up almost every time I do my recordings.
Of course I used various methods of removing it but did not found a good solution yet.
My recent solution was to use Effects > Noise Gate > Gate threshold = 30 or 25, and it worked mostly good but when there is also my voice recorded at the same time - I still hear this metallic sound in the background.

Can someone please help me with that?

  • how to remove this sound in Audacity?
  • what to do to prevent this sound for showing up when I record my audio?

Thanks in advance for all answers and sorry for a newbie question (if this is it).

https://0xstubs.org/understanding-usb-microphone-whine/

Mosquito-Killer4 plugin.

Thank you Trebor so so much!!
Thank you thank you !!
You’re awesome :star_struck: :star_struck:
Thank you for such quick repy and and a great solution!