Customizing The Settings - Orban OPTIMOD-FM 8500S Operating Manual

3-46
OPERATION

Customizing the Settings

poses, inaudible to the listener. Low-level passages are increased in level by up to 10
dB, while the dynamics of crescendos are maintained.
The CLASSICAL-2 BAND preset is a two-band preset with the AGC turned off. It uses
considerable bass coupling to preserve the spectral balance of the input as well as
possible. Its L -M
ESS ORE
than maximum loudness. It sounds essentially identical to the Protection structure.
CLASSICAL-2B+AGC uses the AGC set for 2:1 compression ratio. Because of the
AGC, it affects more of the total dynamic range of the recording that does the
CLASSICAL-2 BAND preset. However, the AGC provides extremely smooth and un-
obtrusive compression because of the gentle ratio and window gating. In this preset,
the Two-Band compressor is used very lightly with a fast release time as a peak lim-
iter. The AGC does almost of the compression.
During the evening hours when the audience is more likely to listen critically, a clas-
sical station may wish to switch to a custom preset (derived from the CLASSICAL-2
BAND preset) that performs less gain reduction. You can create such a preset by
modifying the CLASSICAL-2 BAND preset with the L
down to taste.
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 -M to get as close to your desired sound as possible. Then edit the Mod-
ESS ORE
ify parameters using the Basic, Intermediate or Advanced Modify screen, and save
those edits to a User Preset.
control primarily affects the amount of compression, rather
-M
ESS ORE
-M
ESS
ORBAN MODEL 8500S
control — turn it
-M
ESS ORE
CLASSICAL-5 BAND
. It can therefore re-
CLASSICAL-2 BAND
CLASSICAL-5 BAND
CLASSICAL T -B
WO AND
control (located in the Basic Modify
simultaneously adjusts all of the
ORE
preset uses the
preset is likely
structure.