Gain Reduction Metering; Setting Preset Loudness Correctly In Dolby Digital Transmissions - Orban OPTIMOD 6300 Operating Manual

OPTIMOD 6300 DIGITAL
take the time to double-check your work on many different types of program mate-
rial.
In production and mastering applications, you will usually be working with one
piece of program material at a time. Here, you can use all of Advanced Modify's
power to get the sound you want without being concerned about how your settings
will sound with other material.
The PC Remote software organizes its controls in tabbed screens. The first three tabs
, S
(E QUALIZATION TEREO
The remaining tabs combine the Full Modify and Advanced Modify controls, logi-
cally organized by functionality.
Important Note: Once you have edited a preset's dynamics parameters
in Full or Advanced Modify, L
Basic Modify. As noted above, we strongly recommend using the L
M
control to achieve a sound as close as possible to your desired
ORE
sound before you make further modifications at the Full or Advanced
Modify levels.

Gain Reduction Metering

Unlike the metering on some processors, when any OPTIMOD 6300 gain reduction
meter indicates full-scale (at its bottom), it means that its associated compressor has
run out of gain reduction range, that the circuitry is being overloaded, and that
various nastinesses are likely to commence.
Because the various compressors have 25 dB of gain reduction range, the meter
should never come close to 25 dB gain reduction if OPTIMOD 6300 has been set up
for a sane amount of gain reduction under ordinary program conditions.
Further, be aware of the different peak factors on voice and music—if voice and mu-
sic are peaked identically on a VU meter, voice may cause up to 10 dB more peak
gain reduction than does music! (A PPM will indicate relative peak levels much more
accurately.)
The AGC meter can be switched (within the Full Control screens) so that it either
reads the gain reduction of the Master (above-200 Hz) band, or the difference be-
tween the gain reduction in the Master and Bass bands.
The latter reading is useful for assessing the dynamic bass equalization
that the AGC produces and it helps you set the AGC BASS COUPLING
control.

Setting Preset Loudness Correctly in Dolby Digital Transmissions

Factory presets beginning with "TV" already have their loudness set correctly and
you do not need to use the information in this section.
E , and L -M
NHANCER ESS
-M
ESS ORE
ORE ) access the Basic Modify controls.
control is no longer available in
3-17
OPERATION
-
ESS