Orban Optimod-AM 9400, Operating Manual, Page: 148 / 295

3-14
OPERATION ORBAN MODEL 9400
loudness and density. Moreover, OPTIMOD-AM actually increases definition and
intelligibility.
If you still wish to use reverb to achieve a nostalgic sound in an oldies format, we
recommend using it in
extreme moderation and applying it to the signal before it
reaches OPTIMOD-AM. OPTIMOD-AM will effectively increase the amount of reverb by
increasing the level of the reverb decay and keeping the reverb before OPTIMOD-AM
will allow OPTIMOD-AM to control peak modulation accurately.
Customizing the 9400’s Sound
The subjective setup controls on the 9400 give you the flexibility to customize your
station’s sound. Nevertheless, as with any audio processing system, proper adjust-
ment of these controls consists of balancing the trade-offs between loudness, den-
sity, and audible distortion. The following pages provide the information you need
to adjust the 9400 controls to suit your format, taste, and competitive situation.
When you start with one of our Factory Presets, there are two levels of subjective
adjustment available to you to let you customize the Factory Preset to your re-
quirements: Basic Modify and Full Modify. A third level, Advanced Modify, is accessi-
ble
only from the 9400’s PC Remote software .
The 9400 is essentially two processors in one. The two processors share the stereo
enhancer and AGC but split independently after the AGC. Other than the stereo en-
hancer and AGC controls, all HD AM controls are independent of the analog AM
processing controls. The digital channel processing and analog AM processing have
separate and independent
L
ESS
-M
ORE
controls. This control independence allows
you to adjust the analog channel to be highly processed (to overcome noise and in-
terference), while delivering a more conservatively processed, high-fidelity texture
on the HD AM channel.
Spend some time listening critically to your on-air sound. Listen to a wide range of
program material typical of your format. Listen on several types of car, table, and
portable radios, not just your studio monitors.
Then, if you wish to customize your sound, read the rest of Section 3

it is important
to understand the functions and interactions of the audio processing controls before
experimenting with them.
See page 6-62 for a block diagram of the processing.
Basic Modify
There are four sections in Basic Modify:

Stereo Enhancer