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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: If naive that makes two of usPosted by Lx_ on: 4/14/2011
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 N-set wrote:
Sorry for being naive, but may gathering spectral fingerprints of the electricity
during bad and good days give something?
Perhaps after N samples some pattern might emerge, although I guess nobody knows what to
look for.

Actually this is what I've been wanting to do for quite some time, but not doing it for lack of proper equipment (I have been looking at PC-based oscilloscopes to be able to also do spectral analysis). My hope is to find, as you say, patterns in the bad signals. Since I get a lot of (sonic) garbage from my refrigerator when its compressor is running I would start with analyzing the AC when it is on/off. The goal would be to know what kind of filter to apply to suppress the garbage.
 N-set wrote:
Also, is that certain that the bad interference comes solely via the lines and not (partially)
via the air? I remember reading once an interview with a guy commercially converting listening rooms
into faraday cages by placing copper rods.

I do not say this does not happen, but since I get drastically different sound depending on electrical appliances being on or off I would entirely focus on curing the electricity problem first.

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