Lexicon MPX 1 - Manual (Page 89)

7-15
The Effects and Parameters
Mix 0-100% Dry/Wet ratio
Level* Off, -89 to +6dB Amount of effect in the processed signal
Fc* 20-20000Hz Corner frequency offset of filter
FRes* 1-100 Filter resonance: 7=a maximally flat filter
Mod* 20-20000Hz added to corner frequency offset to produce corner fre-
quency
Scale* -100 to +100% scales Mod
Pan* 50L to C to 50R Left/right pan control
Mix 0-100% Dry/Wet ratio
Level* Off, -89 to +6dB Amount of effect in the processed signal
Sweep* 0-100 Wah center frequency
(Type) C, V C=Crybaby, V=Vox
Bass 0-100 Adds a low frequency boost to the wah
Resp 0-100 Responsiveness to changes in Sweep
Wah is a mono wah filter mod-
elled after two classic wah-wah
pedals. With Sweep selected,
press Options to select Model C
(CryBaby) or Model V (Vox).
These models capture both the
characteristic signature and non-
linear pedal response of the origi-
nal pedals. The Bass control al-
lows you to change the wah from a
band-pass type effect to a low-
pass type effect by progressively
adding more low end into the ef-
fect. (Try it with bass and key-
boards.) Resp controls how
quickly the wah responds to
changes of Sweep. (100 is very
fast, 0 is very, very slow).
To make a Mutron-like enve-
lope filter, patch sweep to Env1 or
Env2. Use Resp to control the
effect’s responsiveness to chang-
ing dynamics.
To make an Auto Wah effect, try
patching Sweep to an LFO sine or
triangle wave.
SweepFilter simulates a Moog-
type resonant low-pass filter. Cut-
off frequency and output level are
interpolated, and can be swept.
The performance of this filter is
high enough that it can be used as
a lowpass filter for hiss reduction.
The parameters were de-
signed to allow synthesizer-like
control of the filter. For example:
Use FC like the manual “cutoff”
knob of an analog synth – set it to
the filter frequency desired when
all modulation sources are at mini-
mum.
Use Mod as the patch destina-
tion for as many as five modulation
sources (LFO, ADR, Env,
LastNote, S/H. etc.).
Use Scale as a master depth
control for all modulation sources.
* = Interpolated; ( ) = Option of preceding parameter
SweepFilter
Wah
EkoSweepFltr SynthChmbr
AutoWah Chrs Wah Pedal