Thanks for all the comments. I don't have any time tonight, but I'll
be back to the group tomorow evening to respond and post some short
wav files.
John Hartog
--- In Rob Danielson <> wrote:
> I'm sure John will post some full res clips when he gets a chance.
> I'd be interested in seeing the saturation of a short clip of the
> original, full gain recording too--preferably without the running
> water. The mushy hiss is typical of compression noise when the
> original's bit depth saturation is low. The MP3 codec seems to assume
> the original will be well saturated, as is typical with music. I
> guess I could generate and assortment of sine tones at 5% saturation
> and them run them through a few compression settings. Rob D.
>
> At 4:34 AM +0200 8/1/05, Klas Strandberg wrote:
> >Rob, can you make a "hiss" demo with different MP3 settings?? I am
> >unfamiliar with that sort of hiss. The noise I hear on John's
recordings
> >sounds like "typical transistor noise".
> >
> >John - can we have a few seconds of the Robin or Coyote as .wav?? I
really
> >need to sort this out.
> >
> >Klas.
> >
> >At 03:24 2005-08-01, you wrote:
> >>Thanks John! Love the yotes. Is the first single perhaps calling for
> >>a \partner thats out of range? She/he is turning and calling in
> >>different directions right? The sources of three slap back echos
> >>towards the end are interesting to think about too.
> >>
> >>I believe the widely distributed hiss, waivering and artifacts are
> >>largely the result of the the mp3 encoding. Its 1:45 long and
> >>requires 1.6mb, so a data rate of 15.6K bytes/sec. Low even for mp3
> >>standards. An uncompressed file would give us a better sense of
> >>noise, if any, introduced byt the pre. Rob D.
> >>
> >> =3D =3D =3D
> >>
> >>
> >>At 2:55 AM +0200 8/1/05, Klas Strandberg wrote:
> >> >Hi John!
> >> >
> >> >In his "self-noise" debate: Now when I hear your recordings
again - after
> >> >getting acquainted with the NT1A, - I think I hear a hiss which
does not
> >> >come from the mic.
> >> >
> >> >It could be atmospheric noise (leaves, grass in very minor
wind) but it
> >> >sounds electronic. Is it the PMD670 or something else?
> >> >
> >> >Or is this what the NT1A sounds like when it is cold?
> >> >Which temperature did you have?
> >> >I hear it also on the Robin recording. Same "hiss".
> >> >
> >> >Klas.
> >> >
> >> > when I listen to your recordings.At 01:08 2005-08-01, 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
> >> >>
> >> >>
> >> >>
> >> >>
> >> >
> >> >Telinga Microphones, Botarbo,
> >> >S-748 96 Tobo, Sweden.
> >> >Phone & fax int + 295 310 01
> > > >email:
> >> >
> >> >
> >> >
> >> >
> >> >"Microphones are not ears,
> >> >Loudspeakers are not birds,
> >> >A listening room is not nature."
> >> >Klas Strandberg
> >> >Yahoo! Groups Links
> >> >
> >> >
> >> >
> >> >
> >>
> >>
> >>--
> >>Rob Danielson
> >>Film Department
> >>University of Wisconsin-Milwaukee
> >>
> >>
> >>"Microphones are not ears,
> >>Loudspeakers are not birds,
> >>A listening room is not nature."
> >>Klas Strandberg
> >>Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >
> >Telinga Microphones, Botarbo,
> >S-748 96 Tobo, Sweden.
> >Phone & fax int + 295 310 01
> >email:
> >
> >
> >
> >
> >"Microphones are not ears,
> >Loudspeakers are not birds,
> >A listening room is not nature."
> >Klas Strandberg
> >Yahoo! Groups Links
> >
> >
> >
> >
>
>
> --
> Rob Danielson
> Film Department
> University of Wisconsin-Milwaukee
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