--- In Rob Danielson <> wrote:
> 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.
>
Hi Rob,
I'm not sure whether it is required to record the background noise simultan=
eously. I guess that the background noise is in most cases more or less sta=
tionary so that it would be sufficient to take a short sample before or aft=
er recording the individual bird songs. If that was not sufficient, I think=
that one could still use a common stereo recorder. Another strategy might =
be to use just a single (calibrated) omnidirectional microphone for both. I=
f the distance between the microphone and the singing bird is not too long,=
the spectrographic analysis of the bird song might still work reliably eno=
ugh.
Regards,
Raimund
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