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I am getting static sound on my video playback. I have my computer and camcorder going into a manual switcher and out of the switcher to a monitor on the wall. The static occurs when I have my HDMI cable from my computer plugged into the switcher. Whenever I unplug the HDMI cable from the computer or turn the computer off the static stops. All the cables are HDMI. Please help.

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    Check for ground loops on all the gear in the chain. Do they all plug into the same outlet? Putting everything on the same power strip going to a single outlet may solve this as long as the outlet can handle the peak load.
    – filzilla
    Commented Jan 15, 2014 at 22:56
  • Ground loops more often cause hum, in my experience, but certainly worth checking. I'd also try simply connections -- bypass the switcher and just feed source to amp to speaker -- to try to isolate the problem; it may be as simple as a bad cable.
    – keshlam
    Commented Jan 17, 2014 at 0:24

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