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OPERATION ORBAN MODEL 9300
Multiband Dynamics Processing
Multiband Controls
Full Name Advanced Name Range
MB DRIVE Multiband Drive 0 ... 25
MB GATE Multiband Gate Threshold Off, –44 ... –15 dB
DWNEXP TH Downward Expander Off, –6.0 … 12.0 dB
MB CLIP Multiband Clipping –4.0 … +5.0
HF CLIP High Frequency Clip Threshold –16.00 … 0.0, Off
LESS-MORE
LESS-MORE Index
[read-only]; 1.0 … 10.0
PARENT PRESET Parent Preset [read-only]
--- High Frequency Limiter Off, –23.8 ... 0.0 dB
--- B1/B2 XOVER 100 Hz, 200 Hz
Table 3-5: Multiband Controls
MB DRIVE
(“Multiband Drive”) control adjusts the signal level going into the five-
band compressor, hence determining the average amount of gain reduction in the
multiband compressor. Range is 25dB.
Adjust the M
ULTIBAND DRIVE control to your taste and format requirements. Used
lightly with slower multiband release times, the multiband compressor produces an
open, re-equalized sound. The multiband compressor can increase audio density
when operated at faster release times because it acts increasingly like a fast limiter
(not a compressor) as the release time is shortened. With faster release times, den-
sity also increases when you increase the drive level into the multiband compressor
because these faster release times produce more limiting action. Increasing density
can make sounds seem louder, but can also result in an unattractive busier, flatter, or
denser sound. It is very important to be aware of the many negative subjective side
effects of excessive density when setting controls that affect the density of the proc-
essed sound.
The M
ULTIBAND DRIVE interacts with the MULTIBAND RELEASE setting. With slower re-
lease time settings, increasing the M
ULTIBAND DRIVE control scarcely affects density.
Instead, the primary danger is that the excessive drive will cause noise to be in-
creased excessively when the program material becomes quiet.
You can minimize this effect by carefully setting the M
ULTIBAND GATE THRESHOLD con-
trol to “freeze” the gain when the input gets quiet and/or by activating the single-
ended noise reduction.
When the release time of the multiband compressor is set to its faster settings, the
setting of the M
ULTIBAND DRIVE control becomes much more critical to sound quality
because density increases as the control is turned up. Listen carefully as you adjust it.
With these fast release times, there is a point beyond which increasing multiband
compressor drive will no longer yield more loudness, and will simply degrade the
punch and definition of the sound.
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