Lexicon CP-1 PLUS V2.0 Owner's Manual page 54

CP-1 Digital Audio Environment Processor
If you have no side loudspeakers, the Concert Hall modes contain versions
of the Panorama program that will simulate them within a narrow area
between the speakers. Choosing one of the speaker configurations with no
side speakers (see page 15) will automatically turn the Panorama Effect on
and mix the side outputs into the main outputs. (If you have a set-up with
six or more loudspeakers, you may want to try setting the configuration for
no side speakers. This will still turn on Panorama and mix the sides to the
front, while leaving the side outputs on.)
While the Ambience effect simulates the early reflections of real halls,
Reverb is more concerned with what happens to the sound after the first
hundred milliseconds or so. The first reflections are not intended to
simulate any particular hall and no real shape will be audible.
The Reverb effect produces a rapidly increasing echo density that smooths
out impulsive sounds. The decay in this program is unusually smooth and
natural and can create the effect of a church or a very reverberant hall. The
early sideways reflections, which produce the most SI, are weaker than they
are in the Ambience programs. In Reverb, as in Ambience, the stereo input
is fed directly to the front loudspeakers. Some of the side energy can also
be fed to the front speakers; side and rear outputs are generated from the
stereo input.
For the largest possible effect from the Reverb effect, consider placing
speakers in the front corners of the room and driving them in parallel with
the rear speakers. Note, however, that this configuration does not compen-
sate for the absence of side speakers, which continue to be the most
important.
Direction is critical to maintaining clarity in Reverb and Ambience. The
recording engineer has probably put as much reverberation in the record-
ing as the music can withstand. Adding more through speakers located in
front of the listener is generally not a good idea, since these effects combine
with the sound from the front speakers, making the music muddy. Delay
and reverb in the rear can occasionally be helpful but the ear is not
particularly good at distinguishing between front and rear sounds and, as
with Ambience, it is at the sides that Reverb is most needed.
If you have no side loudspeakers, the Concert Hall modes contain versions
of Panorama that will simulate them within a narrow area between the
speakers . Choosing one of the speaker configurations with no side speakers
(see page 15) will automatically turn the Panorama Effect on and mix the
side outputs into the main outputs. (If you have a set-up with six or more
loudspeakers, you may want to try setting the configuration for no side
speakers. This will still turn on Panorama and mix the sides to the front,
while leaving the side outputs on.)
Theory
Design
The Reverb
Effect
(Cathedral
Preset)
Reverb is very good for simulating a
large reverberant space.
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