Rob Danielson wrote:
> With Curt Olson's double boundary rig, he places omnis, front-facing,
> next to two, hard surfaced, wood boundaries. The two boundaries are
> separated about 4" so the capsules are around 6-7". I'll dig-up Curt's
> photos.
Here they are, Rob...
http://www.trackseventeen.com/images/mic_arrays/3032_183.html
A couple weeks ago the little suburb where I live held its annual
community festival, which included a local country-western band and
some fireworks at the city park about a half mile from my home. For
kicks, I set up two mic arrays in the yard to make some comparisons.
One was a modified ORTF-type pair of AT-3031s (capsules at 90 degrees
and 5.5 inches apart). The other was a pair of Shure WL-183s mounted
approximately as shown in the photos linked above.
Here are a couple short excerpts. The first is a 1:34 segment of
evening neighborhood buzz, with the country band playing in the
distance. First, the 3031s, then the same segment recorded with the 183
rig. No processing except for some rough level matching...
128 kbps MP3 (2.8 MB):
http://www.trackseventeen.com/media/tsp/060611a-3031_183.mp3
16/44.1 WAV (31.6 MB):
http://www.trackseventeen.com/media/tsp/060611a-3031_183.wav
The second clip is a 1:06 segment from the fireworks. Again, the 3031s
first, followed by the 183s, with 6 seconds of blank between...
128 kbps MP3 (2.1 MB):
http://www.trackseventeen.com/media/tsp/060611b-3031_183.mp3
16/44.1 WAV (23.2 MB):
http://www.trackseventeen.com/media/tsp/060611b-3031_183.wav
I hear some interesting differences between the two arrays.
I agree with Walt that there's no way we can come up with definitive
recommendations here. But I always find it helpful to hear other
people's recordings, especially when it's accompanied by info about the
mics and patterns used.
Curt Olson
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