John -- I found it interesting you were using level settings from 7-10
with the PMD670. I don't have much additional gain at settings over 7 with
my PMD670, and I was wondering how much gain you get in the 7-10
region. Although I don't often have a quiet enough background to worry
about electronic noise, I rarely record with the level setting over 5 or
maybe 6, because I have heard what I think is self noise of some kind at
higher level settings. (I'm using MKH series mics). I don't have enough
experience to know what the source is, and I have never tried to analyze
the problem. Just used my ears.
-- David
At 07:08 PM 7/31/2005, you wrote:
>Last weekend I returned to the Aldrich Mountains: this time we stayed
>at Deer Creek Guard Station. One nice thing about this forest service
>cabin (and also the one at Murderers Creek) is no electricity. The
>lights, refrigerator, and stove run on propane, which does make some
>noise but nothing like the annoying hums and buzzes that come from
>electrical devices.
>
>Just after dark I went out on a walk listening for owl sounds, but I
>didn't hear any. A little later as the nearly full moon rose from the
>trees and illumined the meadow, a coyote began beckoning others to
>join in chorus. In this recording there are two coyotes, some
>crickets, and a mystery bird - any takers? (1.6MB) (PMD670 full gain,
>NT1-As at 60deg and with barrier):
>
>http://www.rockscallop.org/ear/jh-050722-nightcoyote.mp3
>
>For Rob Danielson's comparisons of recorders and microphones, he
>requested examples recorded at full gain. For the PMD-670, the maximum
>gain is an unimpressive 45dB. Here's a 30 sec example at dawn at full
>gain.
>
>http://www.rockscallop.org/ear/jh-050723-0424_rl10-60dg-b1.mp3
>
>Here's another short example with the levels set at 7 out of 10.
>
>http://www.rockscallop.org/ear/jh-050723-0521_rl07-60dg-b1.mp3
>
>Here's another example (PMD670 set at 7) of coyotes joining in chorus
>around 5:30 am.
>
>http://www.rockscallop.org/ear/jh-050723-0526_coyotechorus.mp3
>
>Any comments, questions, or suggestions are welcomed.
>-John Hartog
>
>
>
>
>
>
>"Microphones are not ears,
>Loudspeakers are not birds,
>A listening room is not nature."
>Klas Strandberg
>Yahoo! Groups Links
>
>
>
>
________________________________________________________________________
________________________________________________________________________
|