I can't seem to get my CATV feed grounded well enough to prevent ground loop noise on the audio and video from my PC (which is in another room). I grabbed the el-cheapo Radio Shack audio ground loop ...

When an audio engineer first hears a faint hiss at 50 Hz or 60 Hz that seems tied to the building’s mains rather than any musician’s voice, the culprit is almost always a ground loop. In plain terms, ...

Has anyone had any experience using HDMI fiber optic converters/extenders? I have a weird ground loop problem in my system which I traced back to my HTPC. I get hum whenever I join the grounds between ...