Very interesting, thanks for the tests Eric
John L
<>
To: <>
Sent: Tuesday, July 29, 2008 6:21 PM
Subject: Re: [Nature Recordists] Low-Noise, Very Small Mics
| >I think that DPA's specification for the 4060 is
| >probably pretty close to spot-on.
|
| >I'm going to do that experiment
| >tonight. I'll measure a couple of DPA 4060 mics and a
| >couple of Countryman B3 mics.
|
| It's taking a little longer than I thought to get this done, but I have
the
| test results for the DPA4060, powered with the DPA battery pack, going
| directly in to my Audio Precision analyzer. I measured two samples, a
| matched pair.
|
| Sensitivity (spec =3D -34 dBV/Pa):
|
| sample 1: -33.76 dBV/Pa
| sample 2: -33.58 dBV/Pa
|
| Self Noise (spec =3D 23 dBA)
|
| sample 1: 22.87 dBA
| sample 2: 22.77 dBA
|
| These two microphones are extraordinarly close to their specifications.
|
| Next I'll measure two Countryman B3 microphones. Both of these types are
| appropriate for making binaural recordings if means are found for holding
| them in the user's ears.
|
| Eric
|
|
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