Bruce:
You'll need two mic stands, not a stereo bar. Orient the cardioid "M"
mic above the figure-eight "S" mic in the same vertical plane, with the
capsules as close together as you can get them, like this:
v
^
You would do the same for Blumlein.
Sorry I don't have a photo to depict this more clearly,
Curt Olson
Bruce Wilson wrote:
> I've got a couple Rode NT2000 mics. They work great in ORTF
> configuration (11 o'clock pattern setting), but when I try the
> mid-side configuration I can't get a stable stereo image, and there
> are holes in the pattern at different frequencies.
>
> I tried the cardioid mid with the mic standing vertically, and the
> figure-eight side with that mic placed directly behind the mid in a
> horizontal orientation. Very poor image that actually jumped back and
> forth in the phones as I whistled and moved from 0 to 90 degrees. I
> guess it's path-length cancellation effects.
>
> Should the side mic be directly above the mid mike, and if so, how
> does one do that with a stereo bar and the spider mounts that come
> with studio mics? Anyone do MS with studio mics in the field?
>
> I also tried a near-coincident Blumfield (two figure 8's @ 90 degrees
> and a head-width apart) but the center image was weak and phasey.
>
> Bruce Wilson KF7K
> http://science.uvsc.edu/wilson
>
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