Jose,
I listened to the two tracks without taking notice of the mic placement. As=
you described them as Blumlein, I only listened on headphones. The birds
were different so I looked for stereo placement of individual birds.
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The distant cuckoos and woodpecker were more prominent than in the other
recording, but not well placed. The closer birds (not as close as in the
other recording) showed what I call "splash". Instead of a clear direction=
of call in the stereo image, the call sounds in both ears. This can happen=
if the sounds become out of phase, for instance from a back lobe of a
directional mic, or probably if the Blumlein time-difference stereo is
giving a different image to the cardioid level-difference stereo.
Something happened to the LF at 00:57 for 3 seconds.
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There were very prominent close calls on this recording but all calls were=
well placed in the stereo image. It had a good sense of depth, to distant
birds in the background (and a distant motorbike which was also well
placed).
Because the two recordings had a different collection of birds, it is
difficult to give a final answer, but the image placement of the second one=
was much cleaner. Listen for the "splash" effect when the bird call sounds=
split between the two sides.
David Brinicombe
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