up more slowly and sustains for the time set by Spread. With Shape in the middle,
the build-up and sustain of the reverberation envelope emulates a large concert hall
(assuming that Spread is at least halfway up, and that Size is 30 meters or larger). Low
Spread settings result in a rapid onset of reverberation at the beginning of the envelope,
with little or no sustain. Higher settings spread out both the buildup and sustain.
Size
Size sets the build-up rate of diffusion after the initial period (which is controlled
by Diffusion). The Size control changes reverb sound from very large to very small.
Generally, set this control to the approximate size of the acoustic space being created,
before adjusting anything else. The size in meters is roughly equal to the longest
dimension of the space. Audio is temporarily muted when Size is changed.
RT High Cut
Rt HC sets the frequency above which a 6dB/octave low-pass filter attenuates the rever-
berated signal. It does not attenuate the reflections. High frequencies are often rolled
off with this parameter, resulting in more natural-sounding reverberation. Setting a
low frequency for this parameter can actually shorten the reverb time, as it damps the
audio as it recirculates.
Liveliness
Adjusts the amount of high frequency content in the reverberation tails. Higher settings
increase high frequency response, creating brighter reverbs; lower settings create darker
reverbs with more bass frequency emphasis.
Bass Boost
Bass Boost boosts or cuts frequencies below Crossover. The amount of boost or cut
required is highly dependent on the material being processed.
Bass Boost Frequency
Sets the frequency at which the transition from Mid Rt to Low Rt takes place. This con-
trol should be set at least two octaves higher than the low frequency you want to boost.
For example, to boost a signal at 100Hz, set Bass Boost Frequency to 400Hz. (This
setting works well for classical music.) Crossover works best around 400Hz for boosting
low frequencies, and around 1.5 kHz for cutting low frequencies.
ER Time
Adjusts the amount of time before reverb early reflections occur.
ER Level
Adjusts the level of early reflections within the reverb.
Feedback Delay
Changing this parameter changes the resonant frequencies of
Plate
reverb.
Feedback Level
Adjusts the
Plate
reverb's presence and prominence.
Effects Descriptions
22
Summary of Contents for Lexicon MX400
Page 1: ...MX400 User Guide Professional Audio Equipment...
Page 53: ...45 MX400 MIdI IMPLeMeNTATIoN ChART...
Page 59: ...MX400 51 PRoGRAMS StereO...
Page 60: ...52 PRoGRAMS SurrOunD...
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Page 64: ...MX400 MX400XL Owner s Manual PN 18 0446V D Copyright 2014 Lexicon Printed in China...