10/29/2023 0 Comments Super circuit maker pulse extender![]() ![]() It could also be a much quieter, yet equally annoying buzz or hum that you only hear when the room is otherwise quiet.Ī ground loop typically occurs when one or more pieces of your entertainment system are plugged into the AC (alternating current) at different locations, then connected together by electrical (versus optical) signal cables-RCA, HDMI, composite, component-whose shielding is connected to ground. The most common manifestations are a loud buzz or hum coming through the speakers, or scrolling bands on a TV screen. The number-one cause of unusual audio noise and weird video is the ground loop, simply because it’s so darned easy to create.
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