John,
I have used a similar system. I waterproofed the foam by covering it
with "Saran Wrap".
Must be replaced once a year, but is very little trouble if the device
is easy to detach from tree.
Drew
On 7/26/2015 11:30 AM, rightwhales
[naturerecordists] wrote:
>
>
> I have used the windtech (10380) "Carnauba" water wicking foam
> windscreens, and they are far from waterproof. Plenty of water still
> penetrates to the interior of the foam, so the capsules themselves
> still need to be protected. The foam windscreens on the Wildlife
> Acoustics recorders allow a similar amount of water to penetrate, so
> the capsules on those units must be protected somehow and I don;t know
> how. I'm not eager to void the warranty (and possibly destroy the
> waterseal) by taking it apart! I have also found the foam windscreens
> to be inadequate wind protection in all but the most gentle of
> breezes. I haven't worked out wind protection for my home made
> recorder box, but some combination of open-cell foam and fabric will
> be my starting point. I'd like the mic capsules to be flush with the
> surface of the box, so the windtech type foam screen will not work anyway=
.
>
> When I made my EM172-based boundary array I had some open-cell foam
> lying around that came as packing material in something I ordered, and
> I found it to be very wind resistant and acoustically transparent. I
> just glued it on to the boundary plate to cover the mics and it works
> great as a windscreen. It gets soaked with water however, so it is not
> an all-weather setup, and I don't know how or where to find that
> particular material to use again.
>
> I'm thinking about the wire cage idea, covered with a thin layer of
> foam and fabric. The EM172 capsules seem to withstand a fair amount of
> moisture without further treatment, so as long as it prevents the
> capsules from getting hammered with rain, the windscreen might also
> serve as adequate water protection. I'm hoping so anyway.
>
> John L. Crockett
>
>
> Let us live in harmony with the Earth
> And all creatures
> That our lives may be a blessing.
>
> ------------------------------------------------------------------------
> *From:* " [naturerecordists]"
> <>
> *To:*
> *Sent:* Sunday, July 26, 2015 7:26 AM
> *Subject:* [Nature Recordists] Re: Weatherproofing Mics?
>
>
>
> Hi John and all
>
> At soundCamp we build live audio streamboxes with Raspberry Pi s,
> sometimes using the Primo capsules. I've also been thinking about
> waterproofing..
>
> One option might be to use or copy or adapt the proprietary waterproof
> windshields listed here http://www.windtech.tv/New_Products.php It
> would be very useful to know if somebody knows how to do
> the Carnauba water wicking treatment on the foam. I wonder if this is
> the material used on the recording boxes by eg wildlfe acoustics
> http://www.wildlifeacoustics.com/products/song-meter-sm2-birds
>
> I used for a while a box from Sound Professionals which had a pair of
> stereo omnis installed in opposite walls of an otter box. It was basic
> but gave quite a good stereo image, with the box providing some
> separation. Wind proofing was limited. I reckon you could fit primos
> using a grommet such as the ones from FEL and then cover with some
> waterproof foam. Or fit the capsules in a housing and use the moulded
> windscreens. Maybe backed up with some 'hogs hair' air conditioner
> filter material hopefully not from hogs.
>
> bw
> grant
>
> soundtent.org <http://soundtent.org/>
>
>
>
>
>
>
>
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