I've got an NZXT Gamma Classic case, and when connecting headphones through the front audio jack I get this buzzing/static sound. The sounds almost resemble the computer thinking (not literally, but you understand) or the hard drive working.. or something of that nature. Plugging into the rear audio ports fixes the problem. This is really inconvenient though.
Also, I could have a fix for plugging into the rear audio ports, as I have a Merc Stealth keyboard which has ports for headphones and a microphone built-in. The problem with this is, no matter which port I plug the keyboard's audio in I get the same buzzing/static sound. I think the problem with that situation quite clearly lies within the keyboard though. It's always had that problem, for as long as I've owned the keyboard.
Also, I could have a fix for plugging into the rear audio ports, as I have a Merc Stealth keyboard which has ports for headphones and a microphone built-in. The problem with this is, no matter which port I plug the keyboard's audio in I get the same buzzing/static sound. I think the problem with that situation quite clearly lies within the keyboard though. It's always had that problem, for as long as I've owned the keyboard.