Lexicon LXP-15-II Owner's Manual page 36

LXP-15 II Owner's Manual
Lexicon
Predelay: Predelay for the plate. When creating patches, Predelay is controlled
Plate parameters
from two patch page parameters. Pdlyhi provides coarse control over the entire
delay range for the parameter (0-262ms). Pdly provides fine control over a
smaller range (3.96ms).
Predelay Feedback: A feedback loop around the predelay. It can be set for
positive or negative feedback. When set to maximum ( 99%), input signal
continues to be added to the loop.
Decay: Adjusts the reverb time for mid-frequency signals. Becase low fre-
quency reverb time (Bass Multipy) is a multplier of decay time, this parameter
acts as a master control for reverb time.
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 plate reverb, 1.0X or less is recommended.
Size: Sets the rate of buildup of diffusion after the initial period (which is set by
Diffusion). It also acts as a master control for Decay. Because of this link, Size
changes a reverb sound from very large to very small. Generally, you should set
Size before adjusting anything else. The size in meters is roughly equivalent to
the longest dimension of the space you are trying to create. Note that changing
Size temporarily mutes the outputs.
Diffusion: Controls the degree to which initial echo density increases over time.
High settings of Diffusion result in high initial buildup of echo density; low settings
cause low initial buildup. Echo density is affected by Size — smaller spaces will
sound denser. To enhance percussion, natural vocals, mixes and piano music,
use high settings of Diffusion.
LFO Rate: Adjusts the rate of the internal LFO. Note that in order to hear the
effect of changing the LFO Rate, the LFO must first be patched to control some
parameter in the algorithm.
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