Lexicon LEXICON480LV4 Owner's Manual page 124

About the Parameters
Page One
DRY (Dry Level)
Controls the level of the direct sound. The output of this
parameter is fed to the direct sound simulator.
WET (Reverb Level)
Controls the level of the reverberation generated in
Machine A. This slider interacts with the Cal parameter
on Page 4. The output of this parameter is fed to the
reverberation simulator.
ERL (Early Reflections Level)
Master level control for the levels found on Page 2. The
output of this parameter is fed to the early reflections
simulator.
DWT (Dry Width)
Sets the interaural time delay for the dry signal. It
becomes active when raised above 0.
WDT (Reverberation Width)
Sets the interaural time delay for the reverberant sig-
nal. It becomes active when raised above 0.
EWT (Early Reflection Width)
Sets the interaural time delay for the early reflections.
It becomes active when raised above 0.
Page Two
Pre-Echo Levels
Pre-echoes can best be understood by visualizing a
stage where the early reflections are the sound ema-
nating from the rear and side stage walls immediately
following the direct sound. An independent level con-
trol is provided for each delay. There a re a total of six
pre-echoes, some which cross-pan. Each pre-echo
delay is actually a cluster of early reflections with
density controlled by DIF.
Page Three
Pre-Echo Delay Times
For each of the pre-echo level parameters, there is a
corresponding pre-echo delay time parameter.
Page Four
DIF (Diffusion)
Controls the density of the pre-echoes.
DOF (Diffusion Off)
Enables/disables the diffusion set by DIF. This control
allows you to quickly reference undiffused early reflec-
tions to any value of DIF.
Bank 17: the Test & Reference Programs
DWC (Dry Treble Width Control)
Low pass frequency for the direct sound synthesizer.
For maximum width this control should be set between
500Hz and 1.5kHz.
WET TWC (Reverberation Treble Width Control)
Low pass frequency for the reverberation synthesizer.
For maximum width this control should be set between
500Hz and 1.5kHz.
EARLY TWC (Early Reflection Treble
Width Control)
Low pass frequency for the early reflection synthe-
sizer. For maximum width this control should be set
between 500Hz and 1.5kHz.
CAL (Reverberation Level Calibration)
Controls the amount of gain applied to the output of the
reverberator or ambience program in Machine A. Set to
-7.5 when DRY TWC is off. Set to -4.5 when DRY TWC
is 1Hz or higher.
Page Five
ROL
Sets the overal low pass for the early reflections.
0 Binaural Simulator
DRY WET ERL
0 Off Off
[ PRE- ECHO
-5dB -5dB -5dB
[ PRE- ECHO
11.39ms 22.38ms 22.79ms
DIF DOF DWC
80 0 1020kHz
ROL
Full
Program Description
The Binaural Simulator program has parameters set to
provide width for all signals on loading, but only the dry
level has been raised. Pre-echo levels and pre-echo
delays are set to provide a field of early reflections, but
the ERL parameter must be raised in order to turn them
on. Likewise, the WET parameter must be raised in
order to hear the reverb in Machine A.
DWT WDT CWT
30 30 30
-LEV ELS ]
-5dB -5dB -5dB
-DEL AYS ]
36.19ms 42.43ms 54.99ms
WWC EWC CAL
1020kHz 1020kHz -4.50
14-4