Orban Optimod-TV 8382, Operating Manual

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3-18
OPERATION ORBAN MODEL 8382
uses the Five-Band compressor very lightly with a fast release time as a peak limiter.
The AGC does almost all of the compression.
There is also a corresponding two-band preset called C
LASSICAL
-2B+AGC. In our
opinion, this provides an ideal combination of unobtrusive compression and low
coloration, typically raising low-level material about 10 dB.
To maintain the highest amount of musical integrity, none of the two-band presets
uses loudness control, although it could easily be turned on and the result then
saved as a User Preset.
Note that the classical presets’ preservation of some dynamic range makes gain rid-
ing important—these are not “set and forget” presets. In particular, speech (like
concert commentary) needs to be appropriately gain-ridden so that the music /
speech balance is correct.
Equalizer Controls
The table summarizes the equalization controls available for the Five-Band struc-
ture. (Note that “advanced” controls are accessible only from 8382 PC Remote soft-
ware.)
Except for
B
RILLIANCE
and
DJ B
ASS
, these equalization controls are common to both
the Two-Band and Five-Band structures. The equalizer is located between the AGC
and multiband compressor sections of both structures.
Any equalization that you set will be automatically stored in any User Preset that
you create and save. For example, you can use a User Preset to combine an unmodi-
fied Factory Programming Preset with your custom equalization. Of course, you can
also modify the Factory Preset (with Basic Modify, Full Modify, or Advanced Modify)
before you create your User Preset.
In general, you should be conservative when equalizing modern, well-recorded pro-
gram material. This is particularly true with general-purpose television program-
ming.
Except for B
ASS
G
AIN
, most of the factory presets use less than 3 dB of equalization.
Bass Shelf Controls , the Five-Band structure’s low bass equalization controls, are
designed to add punch and slam to rock and urban music. They provide a parametric
shelving equalizer with control over gain, hinge frequency, and slope (in dB/octave).
BASS FREQ sets the frequency where shelving starts to take effect.
BASS GAIN sets the amount of bass boost (dB) at the top of the shelf.
BASS SLOPE sets the slope ( dB/octave) of the transition between the
top and bottom of the shelf.
The moderate-slope (12 dB/octave) shelving boost achieves a bass boost that is more
audible on smaller receivers, but which can sound boomier on high-quality receivers