Warn: I'm sober and sane.
In the headphones there is a nasty noise. Headphones do not make noise if they are connected to the mobile phone, for example.
Ie noise from the sound card. However, there is one strange feature. The noise stops while scrolling pages in browsers (in Opera, if here and there the wheel to turn, then no noise at all. But in chrome it is intermittent). When moving the mouse (even if it rests on the screen) noise becomes stronger and becomes more high frequency in nature. Clicking on the keyboard also contribute to the noise of change: if you hold, for example, a space, then the headphones like from very quiet poemata shoot.
Question, actually: what the hell?