Orban OPTIMOD-FM 8600Si, Руководство по эксплуатации

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OPTIMOD-FM DIGITAL OPERATION
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When the input is noisy, you can sometimes reduce the noise by activating the sin-
gle-ended noise reduction system. Functionally, the single-ended noise reduction sys-
tem combines a broadband downward expander with a program-dependent low-
pass filter. This noise reduction can be valuable in reducing audible hiss, rumble, or
ambient studio noise on-air.
Putting the Five-Band Structure on the Air
The Five-Band structure is very flexible, enabling you to fine-tune your on-air sound
to complement your programming. There are numerous Factory Programming Pre-
sets. They offer considerable variety, with various combinations of release time,
equalization, low frequency coupling, and high frequency coupling.
Start with one of these presets. Spend some time listening critically to your on-air
sound. Listen to a wide range of program material typical of your format, and listen
on several types of radios (not just on your studio monitors). Then, if you wish, cus-
tomize your sound using the information in “Customizing the Settings,” which fol-
lows.
Customizing the Settings
The
L
ESS
-M
ORE
control can edit each of these presets to optimize the trade-off be-
tween loudness and distortion according to the needs of the format. The presets can
be further edited with Basic, Full Modify, or Advanced Modify to fine-tune them.
The controls in the Five-Band structure give you the flexibility to customize your sta-
tion sound. Nevertheless, as with any audio processing system, proper adjustment of
these controls requires proper balancing of the trade-offs between loudness, den-
sity, and audible distortion. The following provides the information you need to ad-
just the Five-Band structure controls to suit your format, taste, and competitive situ-
Multiband Controls
PC Remote Name Range
Multiband Drive 0 ... 25
Multiband Gate Threshold Off, –44 ... –15 dB
Multiband Limiter Drive –4.0 ... +5.0 dB
Downward Expander Off, –18.0 … 12.0 dB
B5 Down Exp Delta Thresh –18.0 … +12.0 dB
Multiband Limit Threshold –3.0 … +6.0, Off
High Frequency Clip Threshold –16.00 … 0.0, Off
Less-More Index [read-only]; 1.0 … 10.0
Parent Preset [read-only]
MB Limit Speech Thresh –3.0 +6.0 dB
Maximum Distortion Control 0 … 18 dB
High Frequency Limiter Off, –23.8 ... 0.0 dB
B1/B2 XOVER 100 Hz, 150Hz, 200 Hz
Table 3-9: Multiband Controls