--- In Rob Danielson <> wrote:
> Understanding the impressions of movement you can create with your 4
> channel system with your music compositions shoud provide some
> valuable clues. Acoustic settings are often less dramatic and harder
> to image with mics than what's possible with artifical panning of
> mono elements.
>
> Here's one example. I made a stereo recording with 21" spaced omnis
> of a large flock of seagulls circling above me about 10-75' feet for
> about 3 minutes. Listening at home, I noticed that my ability to
> track the bird motions in stereo was limited to 2, at most 3 birds at
> a time even though 10 or more were calling in flight at any given
> moment. My attention seemed geared to pick out only the closer moving
> birds with the rest of the birds becoming a stationary background
> plane in my mind. I would guess that the further away the birds, the
> more difficult it would be to articulate their motion.
>
Having made the same recording by a different technique of the same
flock Rob described I will add. I captured the same problem in
binaural that Rob talks of.
Herring gulls are just plain hard to capture in a stereo field. This
is from their short duration burst of sound while in flight and their
flight patterns are that of independent birds in different directions. =
Other species in large flocks doing continous calls also make
detection of movement difficult when they are not in unison movement.
Linked is a large flock walking slowly by in all directions and its
movement is close to impossible to hear for the same reasons. An
easier stereo image is a large flock of different species perched or
sitting on the ground. Also a large flock that is moving in unison so
that they become one moving sound source is easy and sounds good.
700kb download
http://home.comcast.net/~richpeet/geese.mp3
Rich Peet
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