Factory Programming Presets - Orban OPTIMOD 6300 Operating Manual

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OPERATION ORBAN MODEL 6300
2-band: The 2-band structure consists of a slow 2-band gated AGC (Automatic Gain
Control) for gain riding, followed by a gated 2-band compressor and a look-ahead
limiter. By choosing the crossover mode correctly, the 2-band Structure can be made
phase-linear throughout to maximize sonic transparency.
The 2-band structure has an open, easy-to-listen-to sound that is similar to the
source material if the source material is of good quality. However, if the spectral
balance between the bass and high frequency energy of the program material is in-
correct, the 2-band structure (when its B2-B1 C
control is operated toward 0%)
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can gently correct it without introducing obvious coloration.
In radio-oriented applications, the 2-band structure is mainly useful for classical or
"fine arts" programming that demands high fidelity to the original program source.
The PROTECTION preset is a 2-band preset that provides the highest fidelity; other
2-band presets provide more processing.
The 2-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).
The AGC crossover can be configured to be either phase-linear (i.e., constant-delay)
or "allpass." "Allpass" provides minimum time delay along with a frequency re-
sponse that is free from peaking or dipping when band gains are unequal. "Allpass"
also helps make speech waveforms more symmetrical. The delay-line derived phase-
linear crossover has the same desirable smoothness in its frequency response as "all-
pass," while adding 4 ms of delay to the processing. Most 2-band presets use the de-
lay-line derived phase-linear crossover configuration.
Unlike version 1.0 software, in version 2.0 software and above the 2-band crossover
is always phase-linear.

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 6300's sound.
You can easily edit any of these presets with the L -M
control to optimize the
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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-