Topic: Blimp Windshield Acoustic Fabrics 🌬️🍃

[voloff]

Instead of getting my classic branded blimps, I decided to customize a few for some particular projects.
The most challenging is find a good acoustic fabric, that ensures to be good only for slow winds, with a great wind attenuation and great acoustic transparency.
Before someone comes up telling me to strecht some nylon's pantyhose, mind to share your experience detailing other natural or synthetic material to filter the wind.
I believe high threaded light shocks is a good start point.

[Gutbucket]

Nylon stockings are too thin to block wind.  IME, the fabric used needs to be open (so as to be more sonically transparent) but relatively thick (to effectively slow the air movement).  A combination of a relatively thin layer of open cell foam covered by a protective layer of fabric over it is what I'd look to do if you don't want a longer haired fur cover.   Maybe polyester fleece material.

Fur is effective because the loose strands damp wind energy converting it to heat.  The longer and denser the hair the more effective.  But there is good and bad faux fur.  Fabric store faux-fur fabric works but is not great.  I found a source for high-quality acoustically transparent faux-fur a few years back and will look for the link.  May have posted it here at TS somewhere.  I never ordered any but it looked very good, but not fabric-store cheap.

[voloff]

What it is inside (in the bottom part of the fabric) of the commercials ones seems to be an active cloth/pin dot mesh. On top might be a very fine at least 225 thread count.
I don't think is nylon, or microfiber, polyester...
I think there is more natural materials transparent acoustic, people like burlap for the speakers grill. So I bet for some cotton or wool, but I don't know is not easier to find something like that, a dry fit fabric kind a thing with something else.

[Gutbucket]

For others following, achieving sufficient dead air space around the microphone is the key to any windscreen doing its job correctly.

In selecting shirts under which mics are worn, one thing I'd do was hold the material up over one ear and listen through it while rubbing my fingers together to create low level high frequency noise.  In that way I could select whichever fabric minimally attenuated high frequencies.  Wasn't selecting for wind-stoppage though, which would likely be counter to that.  Ideally wish to optimize for both, but effective wind stoppage is the primary goal.  High frequency attenuation can be effectively corrected with EQ, at the cost of raising the noise floor by the same amount in the affected frequency region, making it far less of a problem than wind noise.

[voloff]

I gave a try using your tips.
I encountered the fabrics that offers better results are high yarn at least 225 thread count.
The only thing is difficult to find is also that in the back has , a pin dot mesh, which it is what all the bigger offers. Still on the hunt....
Another thing is approaching a complete mesh holing fabric as the ones in Super Softie or Spacer Bubble, that it is complety synthetic, great for not soaking and only low winds as well. Notice the importance as you mentioned both products offers a small air chamber around the mic, which is the essence of any blimp.