Your samples suggest there are plenty of very workable stereo micing
options with the NT2000's and its fun to guess which pattern is
being used even with no idea of whether a call is dead on or 45% off
axis. With what we learn from this test, maybe the next test can
cover fewer patterns allowing longer takes and easier stimulus
matching. An enclosed, larger-sized space like a canyon might provide
more to represent. If animals aren't enlisting, there must be some
clever ways to produce a repeatable, moveable Lo Hz sound impulse. A
Halloween clicker isn't bad for the high register. Rob D.
>No, I didn't do a non-filtered version (I filtered as the first step). There
>are better times to record, and I figured if filtering the lows compromised
>the recording I'd go out when the noise is down (no local traffic at the
>airport, no waves of jets overflying on their way to SLC, and no trains in
>the valley) and redo the tests. That or find some other shoreline to record.
>Trouble is, there aren't that many shorelines in Utah, and the mountains are
>full of snow, so few meadows, either.
>
>I did try another place before the airport, but in an hour I heard two
>western meadowlarks, two different waterfowl of some kind, three blackbirds,
>and the or four big frogs. Low aural density. But it was very quiet there,
>mostly because the ponds were closed by the state for heavy metal
>contamination from the hot springs.
>
>I also had a blanket over the mics to keep wind off the diaphragms, so I'd
>like to repeat it on a windless day/hour so we can hear the mics unhindered.
>
>Bruce Wilson KF7K
>http://science.uvsc.edu/wilson
|