naturerecordists
[Top] [All Lists]

3. Re: Weatherproofing Mics?

Subject: 3. Re: Weatherproofing Mics?
From: "rightwhales" naturalcontemplative
Date: Sun Jul 26, 2015 9:33 am ((PDT))
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 protec=
ted somehow and I don;t know how. I'm not eager to void the warranty (and p=
ossibly destroy the waterseal) by taking it apart! I have also found the fo=
am 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, s=
o the windtech type foam screen will not work anyway.

When I made my EM172-based boundary array I had some open-cell foam lying a=
round 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 an=
d fabric. The EM172 capsules seem to withstand a fair amount of moisture wi=
thout further treatment, so as long as it prevents the capsules from gettin=
g hammered with rain, the windscreen might also serve as adequate water pro=
tection. I'm hoping so anyway.
=A0
John L. Crockett

Let us live in harmony with the Earth
And all creatures
That our lives may be a blessing.
From: " [naturerecordists]" <=
ogroups.com>
 To: 
 Sent: Sunday, July 26, 2015 7:26 AM
 Subject: [Nature Recordists] Re: Weatherproofing Mics?
  
#yiv0608527253 #yiv0608527253 -- #yiv0608527253 .yiv0608527253ygrp-photo-ti=
tle{clear:both;font-size:smaller;height:15px;overflow:hidden;text-align:cen=
ter;width:75px;}#yiv0608527253 div.yiv0608527253ygrp-photo{background-posit=
ion:center;background-repeat:no-repeat;background-color:white;border:1px so=
lid black;height:62px;width:62px;}#yiv0608527253 div.yiv0608527253photo-tit=
le a, #yiv0608527253 div.yiv0608527253photo-title a:active, #yiv0608527253 =
div.yiv0608527253photo-title a:hover, #yiv0608527253 div.yiv0608527253photo=
-title a:visited {text-decoration:none;}#yiv0608527253 div.yiv0608527253att=
ach-table div.yiv0608527253attach-row {clear:both;}#yiv0608527253 div.yiv06=
08527253attach-table div.yiv0608527253attach-row div {float:left;}#yiv06085=
27253 p {clear:both;padding:15px 0 3px 0;overflow:hidden;}#yiv0608527253 di=
v.yiv0608527253ygrp-file {width:30px;}#yiv0608527253 div.yiv0608527253attac=
h-table div.yiv0608527253attach-row div div a {text-decoration:none;}#yiv06=
08527253 div.yiv0608527253attach-table div.yiv0608527253attach-row div div =
span {font-weight:normal;}#yiv0608527253 div.yiv0608527253ygrp-file-title {=
font-weight:bold;}#yiv0608527253 #yiv0608527253 #yiv0608527253 #yiv06085272=
53 --#yiv0608527253ygrp-mkp {border:1px solid #d8d8d8;font-family:Arial;mar=
gin:10px 0;padding:0 10px;}#yiv0608527253 #yiv0608527253ygrp-mkp hr {border=
:1px solid #d8d8d8;}#yiv0608527253 #yiv0608527253ygrp-mkp #yiv0608527253hd =
{color:#628c2a;font-size:85%;font-weight:700;line-height:122%;margin:10px 0=
;}#yiv0608527253 #yiv0608527253ygrp-mkp #yiv0608527253ads {margin-bottom:10=
px;}#yiv0608527253 #yiv0608527253ygrp-mkp .yiv0608527253ad {padding:0 0;}#y=
iv0608527253 #yiv0608527253ygrp-mkp .yiv0608527253ad p {margin:0;}#yiv06085=
27253 #yiv0608527253ygrp-mkp .yiv0608527253ad a {color:#0000ff;text-decorat=
ion:none;}#yiv0608527253

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 wind=
shields listed here=A0http://www.windtech.tv/New_Products.php=A0It would be=
 very useful to know if somebody knows how to do the=A0Carnauba=A0water wic=
king treatment on the foam. I wonder if this is the material used on the re=
cording boxes by eg wildlfe acoustics=A0http://www.wildlifeacoustics.com/pr=
oducts/song-meter-sm2-birds
I used for a while a box from Sound Professionals which had a pair of stere=
o 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 pro=
ofing was limited. I reckon you could fit primos using a grommet such as th=
e ones from FEL and then cover with some waterproof foam. Or fit the capsul=
es in a housing and use the moulded windscreens. Maybe backed up with some =
'hogs hair' air conditioner filter material hopefully not from hogs.
bwgrant
soundtent.org



 




<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the naturerecordists mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU