Static noise in headphones?

Question

Headphones

The noise appeared suddenly, it wasn’t there before, at first I thought it was okay, they say, adjust the sensitivity somewhere and that’s it. But pokovyryav settings window, nothing happened.

Headphones are 3 years old and have never been dropped.

Headphones were valued for sound quality, but static noise in the background, UTB PPC. Whether the micro is turned on or not, the noise is constant.

Answer 1

Make a quality ground for the PC (you must have a three-wire electrical network)

Answer 2

Maybe the headphone jack itself has served its purpose, or the gnd core has already begun to touch one of the channels.