Orban OPTIMOD 6300 Operating Manual page 183

OPTIMOD 6300 DIGITAL
are using a studio level controller (like Orban's 8200ST). However, in this case it is
better to defeat the AGC globally in System Setup.
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 5-band structure is the sum of the gain
reduction in the AGC and the gain reduction in the multiband 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
or PPM is peaked, and by the setting of the M
AGC REL ("AGC Master Release") control provides an adjustable range from 0.5
dB/second (slow) to 20 dB/second (fast). The increase in density caused by setting the
AGC R
ELEASE control to fast settings sounds different from the increase in density
caused by setting the Multiband's M
the two off to produce different effects.
Unless it is purposely speeded-up (with the AGC R
gain control (AGC) that occurs in the AGC prior to the multiband compressor makes
audio levels more consistent without significantly altering texture. Then the multi-
band compression and associated bass clipper audibly change the density of the
sound and dynamically re-equalize it as necessary (booming bass is tightened; weak,
thin bass is brought up; highs are always present and consistent in level).
AGC Controls
Full Modify Name
AGC
AGC B CPL
AGC DRIVE
AGC GATE
AGC Matrix
AGC METR
AGC REL
BassDeltaThr
MaxDelta GR
MstrDeltaThr
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control, by the level at which the console VU meter
RIVE
ULTIBAND
Advanced Name
AGC Off / On
AGC Bass Coupling
AGC Drive
AGC Gate Threshold
AGC Matrix
AGC Meter Display
AGC Master Release
Master Delta Threshold
Maximum Delta GR
AGC Crossover
AGC Bass Attack
AGC Bass Release
AGC Bass Threshold
AGC Idle Gain
AGC Master Attack
AGC Ratio
AGC Window Release
AGC Window Size
Bass Delta Threshold
Table 3-6: AGC Controls
D
(compressor) control.
ULTIBAND RIVE
R control to F
ELEASE AST
ELEASE control), the automatic
Range
Off / On
Off, –12...0 dB
–10 ... 25 dB
Off, –44 ... –15 dB
L/R, sum/diff
Master, Delta
0.5, 1.0, 1.5, 2 ... 20 dB / S
–6.0 ... +6.0 dB
0.0 ... 24.0, Off dB
Allpass, LinearNoDelay,
1 ... 10
1 ... 10 dB/sec
–12.0 ... 2.5 dB
–10 ... +10 dB
0.2 ... 6
:1, 4:1, 3:1, 2:1
0.5 ... 20 dB
–25 ... 0 dB
–6/0 ... +6.0 dB
OPERATION
. You can trade
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