This question won't let me sleep ... :P
Ok, so. Every time when I'm trying to record something on my computer using direct input method I can hear TV in my headphones.
I can clearly hear TV presenter.
It's coming to me probably from my neighbours, (I don't use anything else besides my workstation when I record).
I figured it's from power source because my room is soundproofed and I can hear this noise only when I have headphones on.
HOW CAN I BLOCK IT AND HEAR SILENCE FROM POWER SOURCE ???