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Re: Research Project

Subject: Re: Research Project
From: "Rob Danielson" danielson_audio
Date: Fri Mar 13, 2009 6:44 am ((PDT))
At 8:23 PM +0000 3/12/09, Raimund Specht wrote:
>--- In
><naturerecordists%40yahoogroups.com>=
m,
>Rob Danielson <> wrote:
>
>>  Of course, one would opt a good binaural rig, like the Neumann KU-100
>>  or one of the better, lower-cost options using DPA4060's or 4053's.
>>  These rigs are sophisticated and capable of producing very "accurate"
>>  tonalities with more than sufficient separation for analysis even in
>>  loud settings. Should one of these rigs prove incapable, I would be
>>  even more suspicious of the foreground/background imagining I'd
>>  obtain with a directional mic and mono recording. I'm assuming that
>>  Travis needs good imaging of the "background" too. Am I off-course
>>  about this?
>
>Rob, what I actually meant is that even a professional binaural rig
>is probably not suited for this kind of the research. I agree that
>the results that one can achieve with a Neumann KU-100 dummy head
>are great for our own personal enjoyment. I have the CD series
>published by Walter Tilgner, who has been using this rig for ambient
>nature recordings in Germany
>(<http://www.natur-tilgner.de>http://www.natur-tilgner.de) and I
>like it very much. However, one should keep in mind that this kind
>of gear is intended for human listening. But the research we are
>taking about should better exclude the human auditory system (that's
>one of the reasons why the researchers primarily work on spectrogram
>displays rather than trusting to their own listening capabilities).
>I see no
>
>>  I'm sure that we agree that location reverberations and other subtle
>>  cues play very important roles in actual communications. Seems that
>>  capturing these as best as possible for comparing urban/rural
>>  behaviors would be beneficial, not undesirable.
>
>Sure, that would be another research project. However, the
>researchers usually need to isolate a single aspect in order to
>manage the complexity of these things. Otherwise, they would be
>lost...
>
>Regards,
>Raimund
>

Hi Raimund--
I'm still wondering what folks are proposing to sufficiently document
the back ground sounds as they appear to be the primary variable in
his study. If directional mics are needed to gain the 6-10dB of extra
separation from other, ongoing HF sounds, perhaps Steve's idea of a 4
channel recorder is a good route for Travis to pursue. I have been
reading good things and hearing some impressive files generated with
the Edirol R-4 Pro, but I think even the R-44 pre's have been
upgraded since the initial release.  Rob D.

--









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