Hi Bruce--
Fun! I took a listen to the uncompressed long version. With the low
Hz roll-off (and EQ?) I find myself restricted to evaluating mid and
high frequency localization and this judgement is is affected by the
placement/variety of the species in each take. There's a lot of
spatial information in the lowest octaves of recordings. "Depth"
involves the establishment of a "horizon" and the lowest frequencies
with their power to travel great distances provide the most important
clues. Did you by chance generate a version without the roll-off and
EQ? Thanks a ton for doing this test! Rob D.
= = = =
>With the talk recently of stereo patterns, I did a test of ten different
>patterns at the local lakeside where I was about 10 feet above the reedy
>shoreline full of birds with a 270 degree exposure (and an airport behind
>me). Unfortunately, there was quite a bit of man-made noise, but a bit of
>high-pass filtering (@ 220 Hz) took most of it out.
>
>Recorded with a SD 722 dB gain) and two Rode NT2000 mics in various
>configurations and settings. The files were filtered, mixed sequentially,
>and amplified 10 dB.
>
>I won't post the pattern used for each one right now, as I'd like your
>unbiased opinion of which pattern sounds the most realistic, the most
>natural, the best image placement, and the best soundfield capture. Perhaps
>listening on both phones and a CD might be the most informative.
>
>Included in the test were, alphabetically and NOT in the testing order: AB,
>Blumlein, MS, ORTF, NOS and XY. Keep in mind that the figure-8 pattern of
>the NT2000 is not symmetrical, but I don't know if it's audible in MS or
>Blumlein, where the larger front lobe was facing forward.
>
>I'll post the key in a couple days.
>
>Short version: 50 sec., 16-bit 48kHz .WAV, 10.6 MB
>http://wilson.dynu.net/sounds/StereoPatternTest-NT2000-short.wav
>
>Short version, 44.1 kHz .WAV for CD burning, 9.7 MB:
>http://wilson.dynu.net/sounds/StereoPatternTest-NT2000-short44k.wav
>
>Long version: 5 min., 192 kbps 48 kHz stereo .mp3, 6.8 MB
>http://wilson.dynu.net/sounds/StereoPatternTest-NT2000.mp3
>
>Long version 44.1 kHz .WAV for CD burning, 50 MB:
>http://wilson.dynu.net/sounds/StereoPatternTest-NT2000-44k.wav
>
>
>Bruce Wilson KF7K
>http://science.uvsc.edu/wilson
>
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