Customizing The Settings; The Two-Band Structure's Full And Advanced Setup Controls - Orban OPTIMOD-FM 5500 Operation Manual

3-38
OPERATION

Customizing the Settings

The Two-Band Structure's Full and Advanced Setup Controls

There are also two five-band classical presets. The
five-band structure with AGC defeated. It uses substantial interband coupling to re-
tain much of the frequency balance of the original source, but is capable of some-
what more "automatic equalization" than is
equalize older program material, but there is also more risk that it will cause colora-
tion that might offend the classical purist.
like its two-band counterpart, uses the AGC set for 2:1 compres-
CLASSICAL-5B+AGC,
sion ratio.
The five-band structure is not phase-linear, so the
to have slightly less audible transparency than the
Each Two-Band Factory Preset has a L
screen) that adjusts on-air loudness. L
processing controls to optimize the trade-offs between unwanted side effects as
processing levels are decreased or increased.
If you wish, you may adjust the Modify parameters to your own taste. Always start
with L to get as close to your desired sound as possible. Then edit the Mod-
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ify parameters using the Basic, Intermediate or Advanced Modify screen, and save
those edits to a User Preset.
Table 3-6 shows a summary of the Two-Band controls in the dynamics section.
AGC, Equalizer, Stereo Enhancer, and Clipper controls are common to both Two-
Band and Five-Band structures and are described in their own sections earlier in Sec-
tion 3.
Some of the Two-Band controls are common to the Full Modify and Advanced Mod-
ify screens, with additional Two-Band controls available in the Advanced Modify
screen. (Note that "advanced" controls are accessible only from 5500 PC Remote
software.)
2B DRIVE control adjusts signal level going into the two-band compressor, and
therefore controls the density of output audio by determining the amount of gain
reduction in the two-band compressor. The resulting sound texture can be open and
transparent, solid and dense, or somewhere in between. The range is 0-25 dB.
Regardless of the release time setting, we feel that the optimal amount of gain re-
duction in the two-band compressor for popular music and talk formats is 10-15 dB.
If less gain reduction is used, loudness can be lost. For classical formats, operating
with 0-10 dB of gain reduction (with the gain riding AGC set to O
sense of dynamic range while still controlling levels effectively. Because OPTIMOD-
CLASSICAL-5 BAND
CLASSICAL-2 BAND
CLASSICAL-5 BAND
CLASSICAL T
control (located in the Basic Modify
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simultaneously adjusts all of the
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ORBAN MODEL 5500
preset uses the
. It can therefore re-
preset is likely
structure.
-B
WO AND
) maintains a
FF