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Re: mkh 40 humidity?

Subject: Re: mkh 40 humidity?
From: "Rob Danielson" danielson_audio
Date: Sun Dec 6, 2009 9:11 am ((PST))
At 8:48 AM -0500 12/6/09, Marc Myers wrote:
>
>Bad ground would do this as well. I take it the
>noise gradually faded away over time?

Maybe swap the cables and set it out again and
see if you can duplicate the noise.


Juan Carlos Blancas Avil=E9s asked:

>Hello.
>I was recording yesterday night an ambience with a sennheiser 40/30
>pair and sound devices, when suddently the cardioid started to make
>this noise:
><http://homepage.mac.com/coeval/filechute/40humidity%3f.mp3>http://homepag=
e.mac.com/coeval/filechute/40humidity%3f.mp3
>I was in Madrid - 21:00h - 8=BAC / +-85% relative humidity.
>The thing is that one hour later at home the noise started to
>disapear, and today i=B4m using the mic in the studio with no problem
>at all.
>Have you ever listened to an mkh making this kind of noise?... it
>sounds to you as an humidity problem?. Thank you in advance.
>Best regards,
>jc
>


Hi Juan Carlos--

Yes, I have, and with a MKH-30 as well.
Dissipation of the noise over time is common,
even if you leave it turned on in the same
conditions.

When weather conditions seem conducive for to
misbehavior, I power them up several hours before
I need to make crucial recordings.

Over time, if the noise gets worse and happens
more frequently,  a component in mic might need
replacing. Include some samples of the noise
incidents if you send it in.  Rob D.

--









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