This
is some of the gear I use, remember, in a previous life I was a
professional recordist, there are less expensive ways to be a
sound recordist. The most
important
element to any
recording system is the microphone, it has the biggest impact on the
character of the recording. Microphones are like artists
brush :
you have several to suit different recording circumstances.
For stereo recording I typically use either MS or
ORTF
(French broadcasting standard).
Certain microphone arrays are
more flexible than others. This
specific photo shows a four mic array.
Pointing
towards the right is an MS pair, MS stands for "Mid-Side" to the left
is a XY array using two "sub cardioid" or wide cardioid microphones.
This
array allows you to adjust the width of the soundfield after one has
recorded it.

The
photo on the left shows my version of a Dual M-S Schoeps Array.
This is designed to fit into a large Rycote zeppelin. It is
configured using a M-S mount, I use electrical tape (purple) to
attach the figure 8 mics to the ones that are part of the mount itself. Then I use some rubber bands to help the elastic support the
additional weight. Technically I don't need the 2nd figure 8, but
this is the only way I have to make both sides coincident.
My personal favorite nature sound stereo format is ORTF,
it provides a full stereo image in a compact package. At the
recommendation of Posthorn Recording's Jerry Bruck I am using two
Schoeps MK-21 capsules, wide cardioid, or "sub-cardioid". These
capsule allow me to deviate from the ORTF
standard (wikipedia.org) without hurting the image. I manage to
fit a ORTF pair into a large zeppelin using some
special Schoeps
accessories called "GVC"s. See the setup in the photos below:
I
am the inventor of the so called "gregga array"
which is
an adjustable microphone mount constructed of four arms, adjustable in
pairs of two, that allows four (or more) mics to be placed
various distances from the center point. Any of these mic
arrays
typically mount to a lightweight camera tripod. My contraption
was constructed in several hours time with about $12 in parts from a
hardware store.
A word about
wind
protection, the bane of the field and nature recordist is
wind.
There are many over the counter windscreen products on the
market, the best first line of defense is being aware of
microphone placement. Put it behind a tree, wall or your
torso.
One can also very inexpensively make a windscreen with some
hardware cloth, fleece, or fake fur.
Sometimes
you need to be able to record in a stealthy manner, whether its
something that you aren't supposed to be doing or you don't want to
pollute the recording environment with the subjects knowledge that
someone is walking about with live mics. For some reason
people
are more sensitive about this than they are with a camera.
Same
idea. Needless to say this setup was purchased from Core
Sound and allows a quasi-binaural soundfield when mounted on either
side of the head. I have a black baseball hat which helps
hide
the fuzzy windscreens. In this photo the windscreen is
removed
from one of the mics. The box you see is a battery powered
preamplifier that can output to either a 1/8" mini jack or two XLR
connectors. I have a consumer mini-disc player that I like to
use
with this rig, very small and inconspicuous.
After
the microphone, the element that most defines the character of a
recording is the pre-amplifier. The preamp, as it's generally
called, generally provides a few different functions depending on the
model. The first function that all preamps have is to boost
the
low signal level that the microphones output to something that is
compatible with other audio equipment. The next common
feature is
to provide power for the microphones, typically phantom power for
professional condenser microphones, or plug in power for others.
The blue Grace Designs Lunatec V3 shown at right provides all
of
the above functions and has a high pass filter, analogue to digital
converter and level meters. It also allows level adjustment
on
the outputs. Keep in mind that the preamp is for some
recording
systems optional equipment since many recorders have a built in
preamplifier, the quality of built-in preamps vary wildly so an
external dedicated preamp may be desired.
The
final element in the recording signal path is the recorder.
There
are many options and price ranges for these things, if the quality of
the microphones is very good and the preamp is good the quality of the
recorder is not as vital.. For many years I used a
professional
mini disc recorder, left, that combined with a professional front end,
allowed me to make very quiet recordings. This recorder
packed 74
minutes of 16/44 audio onto a single convenient disc, that doubles as
an archival medium or back up copy. My newest piece of
equipment
pictured above the blue preamp on the right is the Sound Devices 744t.
It records to both hard drive and CF cards. The 744
only
has two preamps so the need for the addition of the Lunatec V3 becomes
apparent.

When
recording in very quiet environments it is important to be able to hear
what you are recording, I use "closed" back headphones that seal out
the outside world to allow me to better hear the details of what I am
recording. Though I feel it is equally important to take off
the
headphones and critically listen to what you are recording with your
own ears, there are no better microphones than the ones on your head.
The
biggest problem
to overcome in the
field recording industry and in the wider computer industry is battery
life. I use gel cell batteries that are similar to what are
typically used in motorcycles and small tractors. My battery
system shown at right, by EcoCharge provides two voltages, one for the
preamp and one for the recording deck. Problem comes down to
weight, these batteries, though portable, get pretty heavy after
lugging them through the underbrush for a few hours.
©2003-2008
Greg
Weddig
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