Orban Optimod-TV 8382, Operating Manual

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OPTIMOD-TV DIGITAL OPERATION
3-9
See page 6-56 for a block diagram of the processing.
Basic Modify
BASIC MODIFY
allows you to control three important elements of 8382 processing:
the stereo enhancer, the equalizer, and the dynamics section (multiband compres-
sion, limiting, and clipping). At this level, there is only one control for the dynamics
section:
L
ESS
-M
ORE
, which changes several different subjective setup control settings
simultaneously according to a table that we have created in the 8382’s permanent
ROM (Read-Only Memory). In this table are sets of subjective setup control settings
that provide, in our opinion, the most favorable trade-off between loudness, den-
sity, and audible distortion for a given amount of dynamics processing. We believe
that most 8382 users will never need to go beyond the Basic level of control. 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.
As you increase the setting of the
L
ESS
-M
ORE
control, the air sound will become
louder, but (as with any processor) processing artifacts will increase. Please note that
the highest
L
ESS
-M
ORE
setting is purposely designed to cause unpleasant distortion
and processing artifacts! This helps assure you that you have chosen the optimum
setting of the
L
ESS
-M
ORE
control, because turning the control up to this point will
cause the sound quality to become obviously unacceptable. To match the loudness
of other stations in your market, it should never be necessary to increase the proc-
essing level this far unless your plant has severe overshoot problems in the transmis-
sion chain after the 8382.
You need not (in fact, cannot) create a sound entirely from scratch. All User Presets
are created by modifying Factory Presets, or by further modifying Factory Presets
that have been previously modified with a
L
ESS
-M
ORE
adjustment. It is wise to set
the L
ESS
-M
ORE
control to achieve a sound as close as possible to your desired sound
before you make further modifications at the Advanced Modify level. This is because
the
L
ESS
-M
ORE
control gets you close to an optimum trade-off between loudness
and artifacts, so any changes you make are likely to be smaller and to require reset-
ting fewer controls.
In the 8382,
L
ESS
-M
ORE
affects only the dynamics processing (compression, limiting,
and clipping). Unlike Orban’s OPTIMOD-TV 8282, the 8382 has equalization and ste-
reo enhancement that are decoupled from
L
ESS
-M
ORE
. You can therefore change EQ
or stereo enhancement and not lose the ability to use
L
ESS
-M
ORE
. When you create
a user preset, the 8382 will automatically save your EQ and stereo enhancement set-
tings along with your
L
ESS
-M
ORE
setting. When you recall the user preset, you will
still be able to edit your L
ESS
-M
ORE
setting if you wish.
Full Modify
Full Modify is the most detailed control level available from the 8382’s front panel. It
allows you to adjust the dynamics section at approximately the level of “full con-
trol” available in Orban’s 8282 processor. Because of improvements in the 8382’s sig-