10.6

Table Of Contents
483Logic Pro Instruments
Both LFOs can also be faded in or out automatically, courtesy of built-in envelope
generators.
LFO parameters
Waveform pop-up menu: Choose the waveform used for LFO modulation. See Sculpture
LFO waveforms.
Waveform display: Shows the results of changes to the Waveform pop-up menu and
Curve knob parameter settings.
Curve knob: Change the shape of modulation waveforms. A pure waveform of the
chosen type is active at a value of 0.0. The +1 and −1 positions deform the wave. For
example, with a sine wave chosen as the LFO waveform type:
Curve value of 0.0: Wave is sine-shaped.
Curve values above 0.0: Wave is smoothly changed into a nearly rectangular wave.
Curve values below 0.0: The slope at the zero crossing is reduced, resulting in
shorter soft pulses to +1 and −1.
Rate knob and field: Set the rate of LFO modulation. This is either a freely definable
Hz value (when the Free button is active), or a rhythmic value (when the Sync button
is active). When synchronized with the project tempo, available rates range from
1/64 notes to a periodic duration of 32 bars. Triplet and punctuated values are also
accessible.
Sync/Free buttons: Choose either synchronized or free-running LFO rates. These
buttons interact with the Rate knob. The synchronized value is derived from the Logic
Pro tempo and meter.
Envelope knob: Set the time it takes for the LFO modulation to fade in or fade out. See
Modulate Sculpture LFOs.
Phase knob: Choose between monophonic or polyphonic LFO modulations. These can
have similar phases, completely random phase relationships, key-synced phases, or
anything in-between.
Tip: If you move the Phase knob slightly away from the mono position, you get
nonlocked modulations for all voices running at similar, but not identical, phases. This is
ideal for string-section vibratos.
RateMod Source pop-up menu: Choose a modulation source for the LFO Rate
parameter.
RateMod Amount slider: Set the intensity—the amount—of LFO rate modulation.