Wow, that's a first - A human made noise that did not ruin the recording.
Can you post a sample of your recording? What mics, array, and
recorder were you using?
-John Hartog
--- In Mark Fischer <>
wrote:
>
>
> Hi everyone,
>
> So, here is an interesting dilemma, I thought I would
> pose and see who else has encountered it, and what
> could be done about it.
>
> We have some very large windmills just to my north,
> some of the largest in the world, actually. With a 90
> /meter/ span. (I am on the south bank of the
> Sacramento River, they are on the north, about a mile
> away).
>
> And, under unusual conditions, with winds aloft but
> calm at the surface, you can actually hear them
> rotating. Kind of a low-frequency 'whoosh....
> whoosh.... whoosh....'.
>
> So, I thought. Very cool, I *have* to get a recording
> of this.
>
> What is the result? Pretty much every sound in the
> environment -except- these blades.
>
> I know I can hear them-- so why can't the microphone,
> which can hear everything else?
>
> Has anyone else encountered such a thing? What kinds
> of things can you do to pick these things up? They are
> sounds, but they are getting pretty close to 'pressure
> waves', or subtle changes in background. Thing is, I
> can hear them clear as day... so what to do?
>
> Any thoughts or comments would be appreciated.
>
> Thanks,
>
> Mark
> ~~~~
>
>
>
>
>
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