Orban OPTIMOD-FM 8600Si, Operating Manual

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OPTIMOD-FM DIGITAL OPERATION
3-25
distortion. Because of its lower distortion,
EDGE MX
is appropriate for both 75 µs
and 50 µs pre-emphasis.
EDGE, EDGE MX: This preset is designed for hit music, urban, and dance-oriented
stations that prefer extremely punchy bass to fastidious distortion control. The 8500-
style version uses
H
ARD bass clipping, is loud, and has a bright high frequency tex-
ture. The MX version uses
M
EDIUM bass clipping and produces lower distortion. It
gets its punch more from transient definition (snare drums, kick drum beaters, and
other percussion are significantly more audible than in
EDGE)
than from brute-force
bass power.
FOLK-TRADITIONAL:
FOLK-TRADITIONAL
is an alias for the
ROCK-SOFT
preset. It
assumes that the recordings are of relatively recent vintage and require relatively
subtle processing.
If the recordings you play are inconsistent in texture and equalization, you may pre-
fer the
ROCK-SMOOTH
or ROCK-LIGHT presets.
ROCK-SMOOTH MX
and
ROCK-SOFT MX
are also appropriate for this format.
GOLD:
GOLD
is loud and “hi-fi”-sounding while still respecting the limitations and
basic flavor of the recordings from the era of the 1950s through 1970s.
For example, we do not attempt to exaggerate high frequency energy in
the GOLD
preset. The highs in recordings of this era are often noisy, dis-
torted, or have other technical problems that make them unpleasant
sounding when the processor over-equalizes them in an attempt to emu-
late the high frequency balance of recently recorded material.
GOLD [ ] MX: There are three GOLD presets using MX technology:
GOLD HEAVY
,
GOLD HEAVY BASS
, and GOLD OPEN.
•
GOLD
OPEN is least sensitive to source material and is appropriate for “old-
ies” from the earliest rock and roll era (ca. 1954) to the late 1970s. This preset
has no counterpart among the “8500-style” presets. It is intended for formats
playing music from the earliest rock-and-roll era through the mid 1970’s. It is a
relaxed, clean, easy-sounding preset that does not attempt to emulate the
audio processing of radio stations back in the day when this music is current.
•
GOLD HEAVY
is appropriate for music from the mid 1960s to the late 1970s. It
produces a denser sound than
GOLD OPEN
with more of a “classic Top-40”
processing flavor.
•
GOLD HEAVY BASS
is appropriate for carefully produced music from the mid
1960s to the late 1970s. This preset can increase the bass centered broadly
around 60 Hz by as much as 6 dB, which provides “bass thump” for material
whose bass was originally weak. Because
GOLD HEAVY BASS
can amplify bass
by a large amount, it can also amplify rumble and AC line frequency hum (of-
ten from guitar amplifiers in the era before noise gating was used routinely
on instrument inputs when records were mixed). Stations using
GOLD HEAVY
BASS
should therefore make sure that their source material is cleaned up to