Orban OPTIMOD 6300 Operating Manual page 180

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OPERATION
Brilliance controls the drive to Band 5 in the 5-Band structure only. (This control is
nonfunctional in the 2-Band structure.) The Band 5 compressor/limiter dynamically
controls this boost, protecting the final limiter from excessive HF drive. We recom-
mend a maximum of 4 dB of B
tially less.
DJ Bass ("DJ Bass Boost") control determines the amount of bass boost produced
on some male voices. In its default O
lowest frequency band to move quickly to the same gain reduction as its nearest
neighbor when gated. This fights any tendency of the lowest frequency band to de-
velop significantly more gain than its neighbor when processing voice because voice
will activate the gate frequently. Each time it does so, it will reset the gain of the
lowest frequency band so that the gains of the two bottom bands are equal and the
response in this frequency range is flat. The result is natural-sounding bass on male
voice. This is particularly desirable for most sound-for-picture programming.
If you like a larger-than-life, "chesty" sound on male voice, set this control away
from O
FF . When so set, gating causes the gain reduction of the lowest frequency
band to move to the same gain reduction (minus a gain offset equal to the numeri-
cal setting of the control) as its nearest neighbor when gated. You can therefore set
the maximum gain difference between the two low frequency bands, producing
considerable dynamic bass boost on voice. This setting might be appropriate for
news and sports.
The difference will never exceed the difference that would have other-
wise occurred if the lowest frequency band were gated independently. If
you are familiar with older Orban processors like the 8282, this is the
maximum amount of boost that would have occurred if you had set their
DJ B B
ASS OOST
The amount of bass boost will be highly dependent on the fundamental
frequency of a given voice. If the fundamental frequency is far above
100Hz, there will be little voice energy in the bottom band and little or
no audio bass boost can occur even if the gain of the bottom band is
higher than the gain of its neighbor. As the fundamental frequency
moves lower, more of this energy leaks into the bottom band, and you
hear more bass. If the fundamental frequency is very low (a rarity), there
will be enough energy in the bottom band to force significant gain re-
duction, and you will hear less bass than if the fundamental frequency
were a bit higher.
This control is only available in the 5-band structure.
If the G
ATE
boost setting is disabled.
HF Enhance ("High Frequency Enhancer") is a program-adaptive 6 dB/octave shelv-
ing equalizer with a 4 kHz turnover frequency. It constantly monitors the ratio be-
tween high frequency and broadband energy and adjusts the amount of equaliza-
tion in an attempt to make this ratio constant as the program material changes. It
can therefore create a bright, present sound without over-equalizing material that is
already bright.
boost and most people will prefer substan-
RILLIANCE
position, it causes the gain reduction of the
FF
.
controls to O
N
T (Gate Threshold) control is turned O
HRESH
ORBAN MODEL 6300
, the DJ B
FF ASS