On Jan 6, 2008 3:18 PM, artsonics <> wrote:
> I am in the process of making a portable mic stand for field work
> and would like to know more about stereo bars and perhaps some
> recommendations as I was thinking of making one of these also but not
> sure how critical dimensions need to be.can someone please advise.
It will be a challenge to do stereo techniques AND wind shielding
using a bar. In very rare favorable conditions you might get away
without any but I always assume it's a defacto requirement...
Depending on your mics that limits your options somewhat. Bars are
usually used to near-spaced techniques like NOS and ORTF, which
specify elements at a particular distance (e.g. 17 or 30 cm) and
angle. Schoeps makes a special kit for doing ORTF with compact mics
inside a single zeppelin as I recall; I looked into doing it with two
Windpacs with side addressing mics (it would *just* work, haven't done
it yet as I don't have a bar myself). Generally speaking it's going to
be hard to find mic/zeppelin/mounting combinations that let you do
'orthodox' spaced stereo.
However... as the innovators in this group have shown many times, very
good results can be had by trusting yours ears. One reason for the
precise spacing of ORTF and NOS as I recall is that in addition to
giving good image they also collapse relatively well to mono (though
not as good as M/S of course!) for broadcast applications. If you
don't need that capability there's no reason to necessarily be
limited. Curt Olson and now-absent Rich Peet in particular were having
very good results with wedge, cubes, and other occluded/baffled
techniques, John Hartog showed a baffled cardioid rig at the NSS field
workshop last year, Walt Knapp has long championed (for good reason)
using Crown SASS housings with upgraded mics... none of these require
a bar per se for single-tripod-multi-mic stereo...
Fwiw for nature recording I usually hear of spaced omni techniques
(A-B) benefiting from spacing that makes a single bar impractical and
two tripods a better (if unwieldy) alternative.
Btw this is all received and regurgitated wisdom, I've only tried a
couple stereo techniques myself and none (yet) with a bar... :P :)
best,
aaron
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