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3-13
OPTIMOD-PC
OPERATION
If talent monitors off-air through headphones they are in the same location as
OPTIMOD-PC, you can configure OPTIMOD-PC's analog outputs to supply a special
low-delay monitor signal to drive talent headphones only. (See Output and Routing
Switcher on page 2-31.)
Customizing OPTIMOD-PC's Sound
See Figure 3-2: Simplified OPTIMOD-PC Digital Signal Processing Diagram on page 3-
9.
The subjective setup controls on OPTIMOD-PC give you the flexibility to customize
your station's sound. Nevertheless, as with any audio processing system, proper ad-
justment of these controls consists of balancing the trade-offs between loudness,
density, and audible distortion. The following pages provide the information you
need to adjust OPTIMOD-PC controls to suit your format, taste, and competitive
situation.
When you start with one of our Factory presets, there are two levels of subjective
adjustment available to you to let you customize the Factory preset to your re-
quirements: Basic Control and Advanced Control.
Basic Control
The single L
-M
control changes many different subjective setup control set-
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ORE
tings simultaneously according to a table that we have created in OPTIMOD-PC's
factory presets, which are Read-Only. In this table are sets of subjective setup control
settings that provide, in our opinion, the most favorable trade-off between loud-
ness, density, and audible distortion for a given amount of processing. We believe
that most OPTIMOD-PC users will never need to go beyond the L
level of
-M
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control, because the combinations of subjective setup control settings produced by
this control have been optimized by Orban's audio processing experts on the basis
of years of experience designing audio processing, and upon hundred of hours of
listening tests.
The L
-M
control has a different effect in the "radio" presets than it does in
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the "video" presets. In the "radio" presets the air sound will become louder as you
go from less to more, but (as with any processor) processing artifacts will increase. In
the "video" presets (except for those few based on "radio" presets), the L
-M
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ORE
control sets the average amount of dynamic range control provided by the process-
ing. As you go from less to more, the loudness of loud sounds will stay about the
same but the loudness of quieter sounds will increase. Because of OPTIMOD-PC's
sophisticated gating circuits, very quiet material like background sounds, quiet un-
derscoring, hiss, and hum will not be pumped up.
Please note that, in the "radio" presets, the highest L
setting is purposely
-M
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designed to cause unpleasant distortion and processing artifacts! This helps assure
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