El 08/12/2009, a las 13:30, Michael Dalton escribi=F3:
> I was unable to play your file,
>
try this: http://homepage.mac.com/coeval/filechute/40noise.mp3
> but from the other note I gather it is unlikely to be the
> microphone. I have had difficulty here in Florida with intermittent
> noise on microphone lines. The problem might be with the cable and
> connector. I located a noisy end and the problem was resolved by
> cutting a few inches off the cable, removing the connector, and
> reinstalling the connector. I suggest using care at the cable end
> because rosin flux seems to attract moisture and cause noise; use a
> chemical such as acetone (nail polish remover) on a Q-tip to clean
> residue near the terminals on the insulator body. Problem fixed!
>
thanks for the tip... about the cable, i=B4m using mogami 2930 and
seems to work fine because i tried it with another mkh and it was ok...
best,
jc
> Mike
> Florida
> www.ParrotSpeech.com
>
> ***
>
> mkh 40 humidity?
>
> Posted by: "Scott Fraser" scottbfraser
> Mon Dec 7, 2009 7:54 am (PST)
>
> <<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
> 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?. >>
>
> It doesn't sound like a humidity problem to me. High humidity causes
> the polarizing voltage to arc between the front & back plates of a
> condenser mic. This results in a pop every time the plates short.
> Could be several per minute or could be constant with several pops
> per second. I haven't heard it on a Sennheiser, but I don't think it
> would be different than the popping I've heard on Neumanns & AKGs when
> subjected to humidity. What I'm hearing sounds more like a failing
> active device, either a transistor or chip. I would have the mic
> serviced, & give the repair shop a recording of the noise. They should
> be able to identify the problem from that alone.
>
> Scott Fraser
>
>
>
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