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Re: A strange noise in Rode Nt-1A and NT-2A

Subject: Re: A strange noise in Rode Nt-1A and NT-2A
From: "Klas Strandberg" klasstrandberg
Date: Mon Jul 16, 2012 1:36 pm ((PDT))
"The head of the Technical Department of The Icelandic State Radio, Georg
Magn=FAsson,  thought the failure might be caused by the moisture and the l=
ow
temperature."

He is right. For a mic maker like me it's a wonder that condensor
mikes work at all when humid. My own NT1A's worked fine under most
conditions for a year, then they started crackling.
If the ME series is too noisy, you can only go for a MKH system.

Klas.

At 15:04 2012-07-16, you wrote:
>Der listers.
>
>I am a new member to this list. I have run a blogpage
>http://hljod.blog.is =AD Icelandic Soundblog. There are recordings of vari=
ous
>natural sounds. They are devided into several categories. See:
>fuglar (birds), vatni=F0 (water), sj=F3rinn (the sea) umhverfishlj=F3=F0 (=
sounds of
>the environment) and recently vindurinn (the wind). More categories will b=
e
>set up with English names.
>
>For some time I have used R=F8de microphones for my recordings: NT-2A +NT-=
55
>in a MS-setup and NT-1A in NOS or AB setup. The results have been sometime=
s
>outstanding.
>Recently the following problem occurred:
>
>Last week I was in a summerhouse and left the microphones outside for whol=
e
>night on two occasions. I noticed that as the temperature lowered  and the
>dew fell on, something happened. A strange noise appeared. The first night=
 I
>had the microphones NT-2A and NT-55 in an MS-setup. Then the NT-2A was
>affected and the second night both the NT-1A seemed to fail. Strangely the
>microphones seemed to start working as the sun started to shine and warm u=
p
>the microphones which were covered with a dead cat. The temperature may ha=
ve
>been around 4-5=A8=B0 C and the dew had fallen. The microphones seem to ha=
ve
>started to fail after around 90 minutes.
>I have created a soundfile with the noise from one of the NT-1A.
>
>Has anyone on this list  had any experience with this? My friend, Magn=FAs
>Bergsson, thinks something might be wrong with the cables I used. Some tes=
t
>shows that they seem to be in order.
>
>The head of the Technical Department of The Icelandic State Radio, Georg
>Magn=FAsson,  thought the failure might be caused by the moisture and the =
low
>temperature.
>
>This makes me to think what to do. I have Senheiser ME-62 and 64 which I
>have sometimes used in very harsh conditions, but I think they are a littl=
e
>too noisy. Until 1 year ago I used a battery pack together with the 62 and
>64, but now I have invested in two packs without batteries and the
>microphones semm not as noisy as usually. They can however never be compar=
ed
>with the NT-2A and NT-1A.
>
>Natural sounds, as of birds, here in Iceland are very low and sometimes
>distant.
>
>With very best regards,
>Arnthor Helgason
>
>Arnthor Helgason
>http://hljod.blog.is
>Email:
>
>
>
>
>
>
>
>
>
>------------------------------------
>
>"While a picture is worth a thousand words, a
>sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
>
>Yahoo! Groups Links
>
>
>
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email: 
website: www.telinga.com









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