I was curious enough about the ARL report "Evaluation of Microphone
Windscreen Performance in a Wind Tunnel" to pay $20.95 to download it
from the below site. The report has measured noise spectra of a 6"
foam ball, 6" furry ball, and horsehair matte on a B&K 4166 microphone
in a wind tunnel with laminar and turbulent flow at 0, 6, 9, 12 m/s
with a test tone at 50, 100, and 200 Hz. The report concluded the
foam ball was best.
http://www.stormingmedia.us/31/3133/A313344.html
Abstract: Turbulent wind noise can severely degrade acoustic signals
often making it difficult to detect classify and/or track signals of
interest. Windscreens are often used to suppress such noise. This
research compares the effectiveness of various windscreens to suppress
wind noise while tested in a controlled environment.
This paper may be of interest to technically-minded list members. The
joke is on me, because it turns out you can download it for free,
directly from ARL:
http://www.arl.army.mil/arlreports/2005/ARL-MR-0636.pdf
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