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1. Re: parabolic mics + recorder noise

Subject: 1. Re: parabolic mics + recorder noise
From: "Mike Rooke" picnet2
Date: Thu Aug 18, 2011 7:24 am ((PDT))
Im using Beyerdynamic TG-X-80's the noise is lower than the D50's internal =
mics and noise tone more pleasing than low noise 10mm electrets by Primo. T=
he TGX80 has since been replaced by the TGV70d so they maybe discounting th=
em in music stores.

Sensitivity is a whopping 3.2mV/PA, Nominal impedance 280 Ohm.
My other dynamics (Audix i5, OM2) are < 1.6mV and are quite noisy in compar=
ison.

Probably doesn't make sense with recorders having more noise than the D50.=


Anyone want a ticking clock test under anechoic conditions ?

Im looking forward to a decent thunderstorm to test them.

-M


--- In  umashankar <> wrote:
>
> if you think about it, all dynamic mikes of a given impedance should have=
 the same noise. what set them apart was output. the md 421 and the beyer m=
88 were "low noise" because they had high output.
> =A0
> umashankar
>
> i have published my poems. you can read (or buy) at http://stores.lulu.co=
m/umashankar
>
> From: Raimund <>
> >To: 
> >Sent: Sunday, June 5, 2011 2:59 AM
> >Subject: Re: [Nature Recordists] parabolic mics + recorder noise
> >
> >> > 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 overestimate=
d, I'm however afraid that it can still be an issue even with current micro=
phones 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 un=
fortunately introduce additional noise in a quiet environment. Other microp=
hones such as the Sennheiser K6/ME66 (-108dBu) or the discontinued MKH816 (=
-106dBu) are less demanding in this regard.
> >
> >Regards,
> >Raimund
> >
> >
> >
> >------------------------------------
> >
> >"While a picture is worth a thousand words, a
> >sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause=
.
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>








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