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Re: parabolic mics + recorder noise

Subject: Re: parabolic mics + recorder noise
From: "Klas Strandberg" klasstrandberg
Date: Sun Jun 5, 2011 5:13 am ((PDT))
Yes, right, Raimund. There might be "border-line" cases.

At your site you say:
"Consequently, there is no relevant noise added by virtually any
professional recorder as long as a sufficiently sensitive (hot)
microphone is being used. However, a less sensitive microphone (e.g.
a dynamic microphone having a sensitivity below 2 mV/Pa) would be
more demanding."

Which is what I try to remind people about.

Question: Why does the LS-11 perform the lowest noise level at the
"low" setting?? Or doesn=B4t it?

With the Clip-On's I can record either at "high" and "2- 2,5" on the
wheel or "low" and "10" on the wheel. Both settings give about the
same margin to unexpected sounds.
Which is the best recommendation that I can give customers and why?
High or low? How big is the noise difference?


At 23:29 2011-06-04, you wrote:
> > > Which means: IF you connect a modern microphone to a modern
> > > recorder,
> > > this microphone will provide such a powerful output signal, that it
> > > is the microphone noise that will be disturbing.
> >
> > Yes, agreed, and that is why I use MKH series mics. The 416 had a spec
> > of 21dB excess noise over thermal noise weighted CCIR 468-3. This is
> > the noise you can hear but you can't compare this in any way with
> > different noise quotes and different weightings, especially ones
> > measured with the capsule disconnected. In fact the only noise figure
> > which counts is the one measured by your ears in your typical
> > environment. The 21dB '468 weighted' mic I quoted is one of the
> > quietist that you will find.
>Hi Klas and David,
>While I agree that the recorder preamp noise issue is often
>overestimated, I'm however afraid that it can still be an issue even
>with current microphones in combination some of the most recent recorders.
>The Sennheiser MKH60 (40mV/Pa, 8dB(A), 18 dB(CCIR 468-3), noise
>voltage: -112dBu) would for instance require a preamp noise voltage
>below at least -118 or even -121dBu. So, the TASCAM DR-100 (-113dBu)
>for instance would unfortunately introduce additional noise in a
>quiet environment. Other microphones such as the Sennheiser K6/ME66
>(-108dBu) or the discontinued MKH816 (-106dBu) are less demanding in
>this regard.
>"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

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