Problem with buzz noise comming from speakers

sibuns

Estimable
Mar 11, 2014
29
0
4,580
Ok so i have a technics AV receiver on another side of the room. I have connect it to the computer via usual rca audio cable. When i also have it connected to the tv. From tv there are no buzz comming from speakers. At first i thought that the problem may be in cable because it has quite a lenght in it(around 10-15m). Then i found out if i plug the same cable in the phone instead of computer there is no buzz noise. So buzz noise only comes when connected to computer(at the back on motherboard).

Because i have no buzz sound in headphones(they are plugged infront), i thought that the back connector might have some problems. So i plugged the receiver in front jsut like headphones are... Still the same problem...

Is there a way to fix it ?