My PlayStation Sound is messed up

monkeymanfire Posts 1 Registration date Tuesday November 4, 2014 Status Member Last seen November 4, 2014 - Nov 4, 2014 at 10:14 PM
Hello, I've had this problem for awhile but no it's getting worse. One year ago I started to replay Portal 2 but it (and other games) when there is a loud noise it sounds like there's a somewhat screeching sound in the back round of the sound. What I've done to try to stop this is i changed the HDMI cord but still its messed up then today I used the old cables (the red, white, yellow cables) and it sound great but the video quality is terrible. So what my question is, is what should I do to have HDMI video quality and good sound?