Orban OPTIMOD-FM 5500 Operation Manual page 169

OPTIMOD-FM DIGITAL
in Section 3. (Note that "advanced" controls are accessible only from 5500 PC Re-
mote software.)
MB DRIVE ("Multiband Drive") control adjusts the signal level going into the multi-
band compressor, and therefore determines the average amount of gain reduction
in the multiband compressor. Range is 25 dB.
Adjust the M
ULTIBAND
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 D
ULTIBAND RIVE
lease time settings, increasing the M
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
trol to "freeze" the gain when the input gets quiet and/or by activating the single-
MB Attack/Release/Threshold
Full Name Advanced Name
MB REL Multiband Release
B1 THR B1 Compression Threshold
B2 THR B2 Compression Threshold
B3 THR B3 Compression Threshold
B4 THR B4 Compression Threshold
--- B1 Attack
--- B2 Attack
--- B3 Attack
--- B4/5 Attack
--- B1 Limiter Attack
--- B2 Limiter Attack
--- B3 Limiter Attack
--- B4/5 Limiter Attack
--- B1 Delta Release
--- B2 Delta Release
--- B3 Delta Release
--- B4/5 Delta Release
control to your taste and format requirements. Used
D
RIVE
interacts with the M
ULTIBAND
ULTIBAND
Table 3-8: MB Attack/Release Controls
R setting. With slower re-
ELEASE
D control scarcely affects density.
RIVE
G
ULTIBAND ATE
Range
Slow, Slow2, Med, Med2, MFast,
MFast2, Fast
–16.00 ... 0.0, Off
–16.00 ... 0.0, Off
–16.00 ... 0.0, Off
–16.00 ... 0.0, Off
4.0 ... 50.0 ms, Off
4.0 ... 50.0 ms, Off
4.0 ... 50.0 ms, Off
4.0 ... 50.0 ms, Off
0 ... 100%
0 ... 100%
0 ... 100%
0 ... 100%
–6 ... 6
–6 ... 6
–6 ... 6
–6 ... 6
OPERATION
T con-
HRESHOLD
3-45