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Equipment Emporium Inc.  

http://www.equipmentemporium.com/Lavarticle.htm

"Wind Noise & Lavaliers"

Selection and Use of Lavalier Microphones
Wind noise::
written by Fred Ginsburg, C.A.S.


There are two types of wind noise: Contact and Acoustic. (Sound familiar?)

Contact wind noise is the one we most frequently associate with microphones.

That is the distortion caused when wind strikes the diaphragm of the mic itself.

The solution is to use a good windscreen. Which you will have to make yourself, because the flimsy little puffs of acoustic foam that come with most lavaliers are merely breath pop filters, not real windscreens!

The simplest tool for blocking wind is to salvage the foam booty that makes up the working end of a video head cleaning swab.

After you service your video heads, save these sticks! Believe me, the micro dust collected from a video head will not affect sound quality on a windscreen.

Pull the foam tips off of the wooden sticks, and then slice them open at the base to form a foam cap.

Slide the foam over your favorite lavalier, and instant windscreen. Since these screens are disposable, feel free to color them with markers for less visibility.

 

"Ipod DJ Package #1"

 

If rigging under clothing, feel free to sandwich them inside of your sticky triangles. So what if the tape destroys them!

A greater level of wind protection can be achieved by placing an oversize metal grill (such as from an ECM-55) over the foam.

Another trick is to wrap a layer of cheesecloth over the foam and the mic.

"PA Package #1"

  For visible mics, snip the fingertips off of a pair of wool knit children's winter gloves, and pull the wool "caps" over the cheesecloth. With a layer of wool, cheesecloth, and foam -- you're very well insulated from wind noise.

When hiding lavaliers inside heavy winter coats, a good technique is to bring the mic to the outside of the coat (to avoid excessive muffling) and to hide the mic under a patch of cloth or felt.

These patches are readily obtained as "sample" swatches from any fabric store.

The other type of wind noise is Acoustic.

That is the sound of the wind howling through the trees or between the buildings. It is a form of background noise, like traffic noise, and cannot be eliminated by the use of a windscreen.

Your best solution is to keep the mics close to talent. Rolling off the bass frequencies also helps a little, but wind howling is often all over the frequency spectrum.

 

http://www.equipmentemporium.com/Lavarticle.htm

 
 
 

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