Orban Optimod-PC 1101, Operating Manual

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3-42
OPERATION ORBAN MODEL 1101
dynamics processing controls to optimize the trade-offs between unwanted side ef-
fects.
If you wish, you may adjust the Advanced Modify parameters to your own taste. Al-
ways start with
L
ESS
-M
ORE
to get as close to your desired sound as possible. Then
edit the Advanced Modify parameters using the Advanced Modify screen, and save
those edits to a User Preset.
AGC (“AGC Off/On”) control activates or defeats the AGC.
It is usually used to defeat the AGC when you want to create a preset with minimal
processing (such as a
CLASSICAL
preset). The AGC is also ordinarily defeated if you
are using a studio level controller to protect a transmission link before OPTIMOD-PC.
However, in this case it is better to defeat the AGC globally in System Setup [see step
(3.C) on page 2-23].
AGC Drive control adjusts signal level going into the slow dual-band AGC, there-
fore determining the amount of gain reduction in the AGC. This control also adjusts
the “idle gain”—the amount of gain reduction in the AGC section when the struc-
ture is gated. (It gates whenever the input level to the structure is below the thresh-
old of gating.)
The total amount of gain reduction in the Five-Band structure is the sum of the gain
reduction in the AGC and the gain reduction in the five-band compressor. The total
system gain reduction determines how much the loudness of quiet passages will be
increased (and, therefore, how consistent overall loudness will be). It is determined
by the setting of the
AGC D
RIVE
control, by the level at which the console VU meter
or PPM is peaked, and by the setting of the
M
ULTIBAND
D
RIVE
(compressor) control.
AGC Controls
Name Range
AGC Off / On Off / On
AGC Drive –10 ... 25 dB
AGC Master Release 0.5, 1.0, 1.5, 2 … 20 dB / S
AGC Bass Release 1 … 10 dB/sec
AGC Gate Threshold Off, –44 ... –15 dB
AGC Bass Coupling 0 … 24 dB, Off
AGC Window Size –25 … 0 dB
AGC Window Release 0.5 … 20 dB
AGC Ratio
∞
:1, 4:1, 3:1, 2:1
AGC Bass Threshold –12.0 … 2.5 dB
AGC Idle Gain –10 … +10 dB
AGC Master Attack 0.2 … 6
AGC Bass Attack 1 … 10
AGC Crossover Allpass, LinearNoDelay,
AGC Matrix L/R, sum/difference
AGC MaxDelta GR 0.0 … 24.0 dB, off
Master Delta Thresh -6.0 … +6.0 dB
Bass Delta Thresh -6.0 … +6.0 dB
Table 3-6: AGC Controls