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Re: Reliability & Humidtiy (was mic check

Subject: Re: Reliability & Humidtiy (was mic check
From: antonio celis <>
Date: Tue, 30 Aug 2005 13:39:13 -0500 (CDT)
Hi all,

I hope everbody is doing well.

I'm still trying to catch up this conversation,
although, I do not understand everything since I do
not understand all the technical terms you are using.

You were talking about mkh and its reliability in
humid conditions, and the non-reliability for other
mics with goods specs.

I'm have been using Sennheiser ME's for long periods
of time outdoors (several hours for several days) in
really bad humid conditions (tropical areas such as
caribbean islands and south mexican forests). All of
them are working well and the only problem is that
their specs are not as good as mkh mics but lack of $$
is a important reason to use ME. The K6 works very
good and just one AA battery last almost forever.


See you later

Antoio Celis


 --- Rob Danielson <> escribi=F3:


---------------------------------
At 1:49 PM +0200 8/30/05, Klas Strandberg wrote:

,<snip>
>
>Both my R=F6de NT1A make low frequent noise, even
"pop's" as soon as it gets
>a little cold, and so (even more) does the CAD 179.
This is actually in
>order! The mic's are made for indoor studio work and
cannot!! be reliable
>under cold / humid circumstances. (I still wanted to
try them, though, as
>they are new and untested)

  Mkh's are close to 100% reliable in high
humidity and everyone would prefer to have at
least one pair. Until one can afford that
solution, one must figure out how to get the best
mics one can afford into the field.  Poor me, I
figure I need 4 mkh-800's for the next reliable
upgrade.

Its probably safe to say that no experience with
a non-mkh condenser mic, short or long term, good
or bad, can be applied universally. There seem to
be both mechanical and environmental variables
that make field results inconsistent and ranging
from very good to very bad.

Klas says that all (non-mkh) condenser mics are
flawed by design and should not be asked to
perform in high humidity.  However,  I have a
pair of Rode NT1A's that I have been setting out
for 12 hour stints this summer in 100% humidity,
high temp conditions and they have not failed
once. They could fail tonight. I have four other
NT1-A's, two that will predictably fail under
these demanding conditions that I use when its
dry and 2 more that fail about one trip out of
six under these very demanding conditions.. I've
never had a Rode NT1-A go out in dry cold, (i.e.
days @ -15 degree F), but I'm certain yours did!
Unpredictable? Yes! Including the possibility
they'll work fine.

If a NT1-A is under warranty and you produce a
recording of it flaking out, your dealer should
be happy to take it in for exchange. Its worth
the chance the exchange mic will be better. I've
even exchanged the second mic.

If Rode hears from field recordists that high
humidity performance needs to be a design
priority, maybe they can provide it. Some units
cope much better than others,.. Why?  We gain
little by  categorizing mics and making
generalizations. Rode is listening. They're now
selling the NT1-A's in matched pairs and Peter
Freedman has said he wants to expand the line of
field mics. I encourage  people to share their
experiences and needs with Rode and other manufs
that seem open to our needs. Most field
recordists will be affected by improvements in
this arena faster than anything else.  For 1/4
the price of one MKH-800,  one can pick up
another set of unreliable mics, a Rolls and $160
HiMD recorder and instantly double the odds.  Rob
D.


>The Shure mic must be an electret, the question is
internal noise. That
>they claim some self-noise figure doesn't mean a bit.
There is so much
>lying about this and all manufacturers have to
follow.
>
>Klas.


We need to remember that one's experience, no
matter how good or bad, does not apply
universally.  I have a pair of NT1A's that have
never, NEVER gone out in the hottest 100%
humidity ever recorded on the planet earth, (or
close to it) I also bought two that were poor
performers out of the box. The m


>
>
>
>At 09:50 2005-08-30, you wrote:
>>Curt Wrote-
>>
>>  >Samson C02s lately -- $120.00 for a pair. Roughly
similar size, shape
>>  >and *published* specs to the wonderful Neumann
KM184, which is more
>>  >than 20x the price. There are specs and then
there are specs, of
>>  >course, but for that price, Samson definitely has
me curious. Has
>>  >anyone here tried the C02s?
>>     I second that inquiry, because there has been a
flood of budget mics out
>>there these days. Too good to be true, I am
thinking, so can anyone on here
>>demystify what's going on here? I would like to hear
Klas out on this
>>subject, as a maker he knows the corners that are
being cut and what it
>>means in terms of a quality product.
>>     Best,
>>   Mark R.
>>
>>
>>[Non-text portions of this message have been
removed]
>>
>>
>>
>>
>>"Microphones are not ears,
>>Loudspeakers are not birds,
>  >A listening room is not nature."
>>Klas Strandberg
>>Yahoo! Groups Links
>>
>>
>>
>>
>
>Telinga Microphones, Botarbo,
>S-748 96 Tobo, Sweden.
>Phone & fax int + 295 310 01
>email: 
>         
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>


--
Rob Danielson
Film Department
University of Wisconsin-Milwaukee


"Microphones are not ears,
Loudspeakers are not birds,
A listening room is not nature."
Klas Strandberg

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---------------------------------




Antonio Celis Murillo
Center for Conservation Biology
University of California Riverside

208 University Laboratory Building
Riverside, CA 92521-0334
(951) 827-5484



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