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Chapter 13 Sculpture 263
Sculpture LFOs
Sculpture LFO overview
Sculpture oers two multiwaveform LFOs. Both can be used either polyphonically,
monophonically, or somewhere in-between.
If used monophonically, the modulation is identical for all voices. Imagine a scenario where
a chord is played on the keyboard. If LFO 2 is used to modulate pitch, for example, the
pitch of all voices in the played chord will rise and fall synchronously. This is known as a
phase-locked modulation.
In the same scenario, if LFO 2 is used polyphonically—to modulate multiple voices—they will not
be phase-locked.
If a random (in-between) value is used, some notes will be modulated synchronously, and others
won’t.
Furthermore, both LFOs are key-synced: Each time you play a key, the LFO modulation of this
voice is started from 0.
To understand the non-phase-locked characteristic more easily, imagine a situation where a
chord is played on the keyboard. If LFO 2 is used to modulate pitch, for example, the pitch of one
voice might rise, the pitch of another voice might fall, and the pitch of a third voice might reach
its minimum value. As you can see from this example, the modulation is independent for each
voice, or note.
The key sync feature ensures that the LFO waveform cycle always starts from 0, which results in
consistent modulation of each voice. If the LFO waveform cycles were not synchronized in this
way, individual note modulations would be uneven.
Both LFOs can also be faded in or out automatically, courtesy of built-in envelope generators.
Envelope knob
Waveform menu Rate knob Sync/Free buttons
Curve knob
Rate Mod slider
Phase knob
Source menu