Lexicon LEXICON480LV4 Owner's Manual page 116

Lexicon 480L Owner's Manual
Page One
TSL
Treble Slope
Page Two
LSL
Lo Freq Comp Ratio Lo Freq Rotation Pt
Page Three
GATE
Noise Gate
The Frequency Dynamics Program
This frequency compression algorithm is a stereo two
channel effect which is very similar to the Distression
Program except there is no distortion module. There
are various presets which create a distinct effect as an
enhancement to the original source.
The Frequency Dynamics program utilizes an adjust-
able cross-over feeding independent bass and treble
compressors. There is an adjustable gate which can
conceptualized as being at the output of the processor.
ALL PRESETS SHOULD BE UTILIZED
"PRE-FADER" FROM THE CONSOLE SOURCE.
About the Parameters
Page 1
TSL (Treble Slope)
TSL defines the ratio of the high-frequency compres-
sor. A LARC value of 128 equals a 2:1 compression
ratio.
TBR (Treble Rotate - threshold)
TBR determines the point at which treble compression
starts to occur.
TBM (Treble Maximum Gain)
TBM controls the amount of gain introduced below the
Rotate value. ie: If Rotate is set to -14, and gain is set
at 10, when signals go below -14dB (average) then the
signal will be boosted by 10dB.
XOV (Crossover Frequency)
XOV is a6dB/octave low frequency, 12dB/octave high
frequency sliding filter which determines what frequen-
cies are low frequency and high frequency.
13-2
TBR TBM
Treble Rotate Treble Max Gain
LFR LMG
Lo Freq Max Gain
XOV
HFC
Xover Frequency
High Freq Cut
ATC
Release Time Const
Attack Time Const
HFC (High Frequency Cut)
HFC controls the roll-off characteristics of the treble
compressed content of the signal.
XOM (Crossover Mix - sine/cosine)
XOM controls the mix of low frequency and high
frequency signals. It is the final mix control in the
program.
Page 2
LSL (Low Frequency Compression Ratio)
LSL defines the ratio of the low-frequency compressor.
A LARC value of 128 equals a 2:1 compression ratio.
LFR (Low Frequency Rotation Point)
LFR determines the point at which low-frequency com-
pression starts to occur.
LMG (Low Frequency Maximum Gain)
LMG controls the amount of low-frequency gain intro-
duced below the Rotate value. ie: If Rotate is set to -
24, and gain is set at 6, when signals go below -24dB
(average) then the signal will be boosted by as much as
6dB.
ATC (Attack Time Constant)
Sets the attack time.
RTC (Release Time Constant)
Sets the relase time.
DLY (Front Delay)
DLY determines the amount audio delay before the
compressor modules. This effectively allows the 480L
to perform a "look ahead" function to the compressors.
Page 3
GATE (Noise Gate)
GATE sets a value at which the noise gate starts to
occur. Units are described in dB below 0. These
values should, typically, be set very high.
XOM
Xover Mix
RTC
DLY
Front Delay