Lexicon LXP-15-II Owner's Manual page 28

LXP-15 II Owner's Manual
Lexicon
Delay/Reverb parameters Glide Delay:The master predelay for this algorithm, providing up to 683ms of
delay. Glide Delay produces pitch shift effects while it is being modulated.
Controlling Glide Delay with the LFO can produce vibrato, chorus and flanging
effects.
When creating patches, Glide Delay is controlled from two patch page parame-
ters. Gldlyhi provides coarse control over the entire delay range for the
parameter (0-683ms). Gldly provides fine control over a smaller range (0-
16.1ms).
Glide Feedback: A positive feedback loop around Glide Delay. When set to
maximum (100%), it continues to add input signal into the feedback loop. Use
feedback for repeating echo effects and to deepen chorus/flanging effects
created by modulating Glide Delay.
Delay 2: Reverb predelay following the glide delay. It can provide as much
as179ms of additional delay.For setups that use a mix of both the glide delay and
reverberator outputs, use Delay 2 to acoustically separate the two effects. Like
Glide Delay, Delay 2 is controlled from two patch page parameters. Dly2hi
provides coarse control over the entire delay range for the parameter (0-179ms).
Dly2 provides fine control over a smaller range (5.04ms ).
HiCut: Adjusts high frequency roll-off for the algorithm. Roll-off is adjustable in
16 steps from flat to 320Hz.
LoCut: Adjusts low frequency roll-off for the algorithm. Roll-off is adjustable in
32 steps from flat to 19Hz.
Decay: Adjusts the reverb time for mid-frequency signals. Becase low frequency
reverb time (Bass Multipy) is a multplier of decay time, this parameter acts as a
master control for reverb time.
In this algorithm, Decay can be set to produce infinite reverb effects. When set
to "Infinit," sounds in the reverb continue to reverberate, but do not decay. (For
a truly infinte reverb effect, all of the reverb page settings must be set
appropriately. See Patching Examples for an example of this effect.) While
decay is set to "Inifnit," input is locked out of the reverberator. This allows you
to play over the reverb wash, and prevents cumulative overloading. Experiment
with controlling Decay with MIDI Velocity or the input envelope follower for
performance control of this effect.
Treble : Sets the frequency above which sounds decay at a progressively faster
rate. When set relatively low, it gives a darker tone to the reverberation,
simulating the effect of air absorption in a real hall. Maximum setting gives a flat
response through the filter section.
Bass Multiply: Sets the reverb time for low-frequency signals, as a multiplier of
the Decay parameter. For example, if Bass Multiply is set to 2X and Decay is set
for 2 seconds, the low-frequency reverb time will be 4 seconds. For a natural-
sounding hall ambience, values of 1.5X or less are recommended.
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