10.6

Table Of Contents
473Logic Pro Instruments
Use the Logic Pro Sculpture Waveshaper
The Waveshaper imposes a nonlinear shaping curve on each voice of the signal coming
from the pickups and amplitude envelope. This reshaped signal is then passed on to the
filter. This process is quite similar to the waveshaping of oscillators in synthesizers such as
the Korg O1/W.
Waveshaper parameters
Waveshaper On/Off button: Turn the Waveshaper on or off.
Type pop-up menu: Choose one of four waveshaping curves. See the table.
Input Scale knob: Cut or boost the input signal, prior to processing by the Waveshaper.
Positive values result in a richer harmonic spectrum. Any level increase introduced by
this parameter is automatically compensated for by the Waveshaper. This parameter
can be morphed.
Note: Given its impact on the harmonic spectrum, Input Scale should be viewed and
used as a timbral control, rather than a level control. Also note that extreme Input Scale
values can introduce processing noise at the Waveshaper output.
Variation knob: Set the value of the preassigned parameter for the selected Waveshaper
curve. Behavior varies between curve types. This parameter can be morphed. See the
table.
Type Variation controls Value of 0.0 Negative values Positive values
VariDrive Wet/dry ratio Provides shaped
signal only.
Reduces shaped
signal and adds dry
signal.
Raises shaped
signal and adds
phase-inverted dry
signal, making sound
sharper.
SoftSat
Tube Dist.
Scream
Bias—alters the
symmetry of the
shaping curve.
Results in
symmetrical shaping.
Alters symmetry. Alters symmetry.