Crackling in two places in home

[sarcilla]

My Creative computer speakers upstairs AND Yamaha RX-V665 downstairs both seem to play a crackling noise at roughly 10% of full volume for roughly 1 second, then silence for 3-5 seconds, then all over again. Does this point to dirty power? We have dogs and a fairly dusty home, but since both are doing exactly the same thing perhaps it's not dust. Anyone experience this or have any suggestions?

The receiver does the sound on both of two different HDMI inputs (PS3 and Tivo) and I haven't tried the XBox360 with component/optical hookup.

 

[TLS Guy]

My Creative computer speakers upstairs AND Yamaha RX-V665 downstairs both seem to play a crackling noise at roughly 10% of full volume for roughly 1 second, then silence for 3-5 seconds, then all over again. Does this point to dirty power? We have dogs and a fairly dusty home, but since both are doing exactly the same thing perhaps it's not dust. Anyone experience this or have any suggestions?

The receiver does the sound on both of two different HDMI inputs (PS3 and Tivo) and I haven't tried the XBox360 with component/optical hookup.

Are you an apartment dweller? To me this sounds like radio frequency penetration. It could be mains introduced interference, but this is less likely. It sounds to me as if there is a piece of electrical equipment, in the vicinity that is generating strong rf interference, that is penetrating your audio system.

Unfortunately a situation like this is almost impossible to trouble shoot and solve at long range.

By the way, generating that much interference is illegal. It would help to know your living situation and whether their are any industrial sites in your neighborhood.

 

[Lordoftherings]

It's definitively from your electrical wiring or some type of radio interference, generated at constant intervals, and travelling through your electrical system.
It might need a ground isolator plus noise insulator, or a wire replacement.

Try this: Turn your main breaker Off, and turn all your other breakers Off.
Then turn them back ON, after about a minute or so.

If the problem persist, call an electrician and get an estimate of the problem and cost.

Bob