thatll be all down to the mic and environment but a thing called a dead cat which is the fluffy thing that goes over a mic reduces wind as well as a directional shotgun mic which the dead cats work better for

Hello,
oh very well, thank you tuesday and barney.
i have the ccd mic connected at camer like this

i saw the deadcat but it's so big, any suggest for me? a piece of sponge?

Al.

The "dead cat" reference is due the outer layer being made from some sort of long-haired fake-fur fabric, usually applied as a cover over a basket-type windshield (for the larger versions which are typically used for shotgun mics) or over open-pored foam rubber (for the cheaper, more compact versions).

You can certainly make you own from some pieces of similar fake-fur material. I once had to put a wireless mic on a skydiver to record part of his descent, where there is obviously the potential for a lot of wind noise - more than the normal tiny windshield would cope with - so I placed the small microphone/windshield inside a bigger foam windshield, the sort you might get on a singer's vocal mic, and then wrapped it up with a square of fake-fur material (about 6" x 6") with elastic bands round where the cable was emerging from the fur-covered ball, to hold the fur in place around the foam. (It could be sewn if you were making something more permanent.) This was then poking out of the skydiver's overalls and secured with safety pins. At terminal velocity there was still too much wind for it to cope with - not surprisingly - but once the parachute opened it worked perfectly for the rest of the descent.

For any foam rubber you use, it must be "open pore" and not "closed pore" sponge, in order to slow down the very low frequency (but high power) wind but let the relatively higher frequency sound pass through as transparently as possible. It's better to buy & adapt an existing foam windshield than try and find a source of suitable foam. Likewise for the fur, look for something with as open-weave backing material as you can find, and fur that's at least half an inch or longer. On my Wind-Jammer cover from Rycote, the people who first introduced these sort of "hairy" mic covers over 30 years ago, the fur is about an inch long on average.

I was about to write that you might be able to find a used/ripped Rycote cover and adapt it, but I've just discovered they produce the Rycote-Mini-Wind-Jammer-Screen, one of which might pretty much be the perfect size for you.

Thank you everybody, very kind with your replies,
if in a future want change mic with another one, you can suggest me something?
this is a external webcamera and now the mic it's connected by:
jack 3.5 --> "rca extender lan" --> rca mic.
thank you more!

Al