Static Noise

[Hypercube]

It might be your motherboard. I have the same issue with the audio ports at the back of my PC, but not in the front. It's some electrical current going through I believe. It's quite common unfortunately, and it seems to change in pitch depending on what is displayed on the monitor.

For some reason it's fine now? I don't know what happened before but it was constantly happening and it wouldn't stop but it's fine now, so I have no idea what happened.