David,
My blimps are 45cm x 25 cm and 6 to 8 cm from the microphone capsules.
Is it better to make bigger blimps and rounder? Or use fake fur with longer=
hair and thiker?
Regards,
Jos=E9
--- In "Avocet" <> wrote:
>
> > The Rode Blimp works well, I just wish there were a less bulky
> > alternative.
>
> As I often say, the secret is in the size. Foam sleeves, "puffgags"
> and hairy slipons are fine for indoor use, for breath noise reduction
> and, with booms, for the air going past a moving boom, but for real
> wind you need size.
>
> We are nature recordists and part of outdoor nature is wind. Some
> mails ago I advised putting money into a good blimp and cover. With an
> "affordable" mic and a good blimp, you are still in business outdoors.
> With the best expensive mic and a poor windshield, you are lost.
>
> For mics in a fixed position you don't need a fancy mount, just soft
> enough to cushion the mic from vibration. Rubber bands will do this.
> Outside you need a cage to hold the real wind shield - a soft membrane
> which is resistant to blowing through, but which lets throegh the
> sound. Provided this doesn't flap around the cage supporting it, this
> can be made of any sort of stiff netting from two inch to half inch
> pitch. Like two kitchen sieves and a cylinder of garden netting which
> softens with a heat gun. If you're handy, you may be able to form
> round ends when they are hot. Just make sure the hole you put the mic
> mount etc. through gets covered over.
>
> The criterion for letting through HF is the thickness of the
> windshield membrane which should be about a tenth of the highest
> frequency wavelength you want to get through. Surprisingly, thin
> blanket material is often OK, so try all sorts of cloth by putting it
> over your head and listening.
>
> If you want to look posh, spend out on a costly windshieled assembly
> but if you just want good outdoor sound, experiment.
>
> David
>
> David Brinicombe
> North Devon, UK
> Cogito cogito ergo cogito sum - Ambrose Bierce
>
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