I've done a lot of reading around the topic, and although it's a commonly reported problem, the answers given are confusing and require very expensive hardware to try and eliminate. when I'm not sure what the issue is.
To explain then; I have a home PC set up, with 2.1 USB powered speakers & subwoofer connected to the case, via USB and the 3.5 jack on British domestic power & plugs. There's two issues which I think are connected; when my refridgerator powers down during its cycle, there's a short sharp POP from the subwoofer. And secondly, there's a buzzing noise from the speakers, and also USB powered headphones, when scrolling on a webpage, like the normal background static but suddenly much louder. It doesn't affect my bluetooth headphones, so it's something with along the physical wiring somewhere, rather than RF signals etc in my flat.
What I've done so far;
Complete reinstall of Windows 10, driver updates etc for a different reason. This didn't change it.
Replaced the GPU, as I fear the old one was failing. This hasn't changed the noise.
Cleaned as much of the inside case and motherboard as I can. No difference.
Moved all the plugs for the computer, monitor, printer and ISP modem hub (and thus all the electronics near it) onto the same, power surge protecting multiplug. This hasn't helped.
Turned off the fridge entirely. This of course stops the POP but doesn't affect the static noise, so it's not the fridge causing that.
From what I've read, it might be an issue with the actual wiring and grounding of the electricity in my building? But the guides online didn't explain well how to prove that, nor any solution except hideously expensive "current regulators" etc. It would be a lot of money to get a sparky out to trace the tangled wiring in the ancient building just to deal with static in speakers...
What else might it be, and what solutions (simply explained please) could there be?
Thank you.
To explain then; I have a home PC set up, with 2.1 USB powered speakers & subwoofer connected to the case, via USB and the 3.5 jack on British domestic power & plugs. There's two issues which I think are connected; when my refridgerator powers down during its cycle, there's a short sharp POP from the subwoofer. And secondly, there's a buzzing noise from the speakers, and also USB powered headphones, when scrolling on a webpage, like the normal background static but suddenly much louder. It doesn't affect my bluetooth headphones, so it's something with along the physical wiring somewhere, rather than RF signals etc in my flat.
What I've done so far;
Complete reinstall of Windows 10, driver updates etc for a different reason. This didn't change it.
Replaced the GPU, as I fear the old one was failing. This hasn't changed the noise.
Cleaned as much of the inside case and motherboard as I can. No difference.
Moved all the plugs for the computer, monitor, printer and ISP modem hub (and thus all the electronics near it) onto the same, power surge protecting multiplug. This hasn't helped.
Turned off the fridge entirely. This of course stops the POP but doesn't affect the static noise, so it's not the fridge causing that.
From what I've read, it might be an issue with the actual wiring and grounding of the electricity in my building? But the guides online didn't explain well how to prove that, nor any solution except hideously expensive "current regulators" etc. It would be a lot of money to get a sparky out to trace the tangled wiring in the ancient building just to deal with static in speakers...
What else might it be, and what solutions (simply explained please) could there be?
Thank you.
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