Question Rapid buzzing noise when not playing audio

[acase12]

-BenQ GW2480 (Monitor)
-Logitech Z337 (Speakers)
-Amazon Basics Display Port Cable

So the issue is that whenever I am not playing any audio on my PC (Connected to monitor with Display port), and the sound on my speakers (Connected to monitor with aux cable) are turned up to a certain point, there is this rapid buzzing sound. It is not a usual humming sound some speakers may have when turned up, but a loud rapid sound that goes for 2 seconds, pauses for 1 second, and repeats. Please feel free to ask questions I just really would like to get this figured out as it is quite annoying.

 

[helpstar]

connect the speakers to your PC, select the speakers in windows to be the default audio playback device

 

[acase12]

connect the speakers to your PC, select the speakers in windows to be the default audio playback device

I could do that but I also have an xbox plugged into the monitor and I sometimes like hearing it over the speakers. I also have my headset plugged into the pc so there are no available ports.

 

[helpstar]

Is the headset´s microphone near the speakers? Could be a feedback