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OPERATION ORBAN MODEL 8685
balance between the bass and high frequency energy of the program material is in-
correct, the Two-Band structure (when its B
ASS COUPLING control is not set to 0 dB)
can gently correct it without introducing obvious coloration.
In radio-oriented applications, the Two-Band structure is mainly useful for classical
or “fine arts” programming that demands high fidelity to the original program
source.
The two-band structure preserves the frequency balance between midrange and
high frequency elements in the programming while permitting gentle automatic re-
equalization of the balance between these elements (in the “master” band, which is
above 200 Hz) and elements in the “bass” band (below 200 Hz). It has a “reverse ex-
ponential” release characteristic available, which can be very useful in sound-for-
picture applications by correcting large gain difference quickly while not adding
significant density to material that is already well controlled.
Factory Programming Presets
Factory Programming Presets are our “factory recommended settings” for various
program formats or types. The Factory Programming Presets are starting points to
help you get on the air quickly without having to understand anything about ad-
justing the 8685’s sound.
You can easily edit any of these presets with the L
ESS-MORE control to optimize the
trade-off between loudness and distortion according to the needs of your format,
although this is often unnecessary. It is OK to use unmodified factory presets on the
air. These represent the best efforts of some very experienced transmission process-
ing sound designers. We are sometimes asked about unpublished “programming se-
crets” for Optimods. In fact, there are no “secrets” that we withhold from users. This
manual reveals our “secrets” and the presets embody all of our craft as processing
experts. The presets are editable because other sound designers may have different
preferences from ours, not because the presets are somehow mediocre or improv-
able by those with special, arcane knowledge that we withhold from most of our
customers.
Start with one of these presets. Spend some time listening critically to your sound.
Listen to a wide range of program material typical of your format and listen on sev-
eral types of audio systems (not just on your studio monitors). Then, if you wish, cus-
tomize your sound using the information in the Protection Limiter, Two-Band and
Five-Band sections that follow.
Each factory preset has full L
ESS-MORE capability. The table shows the presets, in-
cluding the source presets from which they were taken and the nominal L
ESS-MORE
setting of each preset. Some of the Five-Band presets appear several times under
different names because we felt that these presets were appropriate for more than
one format; these can be identified by a shared source preset name.
Important! If you are dissatisfied with the sound available from the fac-
tory presets, please understand that each named preset is actually 19 pre-
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