Orban Optimod-PC 1101, Руководство по эксплуатации

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OPTIMOD-PC OPERATION
3-45
The normal setting for the W
INDOW
S
IZE
is 3 dB.
Window Release (see W
INDOW
S
IZE
above.)
AGC Ratio determines the compression ratio of the AGC. The compression ratio is
the ratio between the change in input level and the resulting change in output lev-
el, both measured in units of dB.
OPTIMOD-PC compressor can be operated at a compression ratio as low as 2:1. This
can add a sense of dynamic range and is mostly useful for subtle fine arts formats
like classical and jazz.
AGC Bass Threshold determines the compression threshold of the bass band in the
AGC. It can be used to set the target spectral balance of the AGC.
As the AGC B C
PL
control is moved towards “100%,” the AGC B
ASS
T
HRESHOLD
con-
trol affects the sound less and less.
The interaction between the AGC B
ASS
T
HRESHOLD
control and the AGC B C
PL
con-
trol is a bit complex, so we recommend leaving the AGC B
ASS
T
HRESHOLD
control at
its factory setting unless you have a good reason for readjusting it.
AGC Idle Gain . The “idle gain” is the target gain of the AGC when the silence gate
is active. Whenever the silence gate turns on, the gain of the AGC slowly moves to-
wards the idle gain.
The idle gain is primarily determined by the AGC D
RIVE
setting—a setting of 10 dB
will ordinarily produce an idle gain of –10 dB (i.e., 10 dB of gain reduction). How-
ever, sometimes you may not want the idle gain to be the same as the
AGC D
RIVE
setting. The AGC I
DLE
G
AIN
control allows you to add or subtract gain from the idle
gain setting determined by the AGC D
RIVE
setting.
You might want to do this if you make a custom preset that otherwise causes the
gain to increase or decrease unnaturally when the AGC is gated. For example, to
make the idle gain track the setting of the
AGC D
RIVE
control, set the AGC I
DLE
G
AIN
control to zero. To make the idle gain 2 dB lower than the setting of the AGC D
RIVE
control, set the AGC I
DLE
G
AIN
control to –2.
AGC Bass Attack sets the attack time of the AGC bass compressor (below 200Hz).
AGC Master Attack sets the attack time of the AGC master compressor (above
200Hz).
AGC Bass Release sets the release time of the AGC bass compressor.
AGC Crossover allows you to choose A
LLPASS
or L
INEAR
N
O
D
ELAY
modes.
A
LLPASS
is a phase-rotating crossover that introduces one pole of phase rotation at
200 Hz. The overall frequency response remains smooth as the two bands take dif-
ferent amounts of gain reduction—the response is a smooth shelf without extra