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Re: An un-recordable sound, re-visited

Subject: Re: An un-recordable sound, re-visited
From: "Mark Fischer" aguasonic
Date: Sun Oct 7, 2007 12:49 pm ((PDT))
Dear Roger,

--- In  "Roger Norwood" 
> Are you UK based? If so what locations are you describing, I find 
Nope-- California. I live right across the (Sacramento) river from
what has evolved into one of the largest wind farms in the world. I
mean hundreds and hundreds of mills, a significant fraction of which
are the 90 meter giants built by Vestas.

Earlier I had commented on how you can hear this sound, but you will
be challenged to be able to get a recording of it.

On this last instance I happened across the same effect, with a much
smaller windmill that apparently pushes this phenomenon into higher,
more clearly audible frequencies. 'Pylon thump'. Yep, that is a
descriptive name.

Now, while it is a sound that does not come from birds or the wind
whistling in the trees, I'll take it over living next to an
international airport any day of the week. For one thing you actually
have to *listen* to hear it. ;^)

As luck would have it there is not a breath of wind out there today.
When I get a chance....

Cheers,

Mark
~~~~






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