Modulator MIDI plug-in LFO in Logic Pro for iPad

LFO parameters

On/Off button: Turn the LFO on or off.
Rate knob and field: Set the cycle speed of the LFO in hertz or in beat values when the Sync button is on. The LFO rate can be modulated by the envelope. See Modulator MIDI plug-in envelope.
Sync button: Synchronize the LFO rate to the project tempo.
Shape buttons: Select a waveform shape. Choose from: triangle, sine, square, and random. Each is suited for different types of modulations.
Symmetry slider and field: Adjust the symmetry of the waveform. This deforms the waveform in the following ways:
- Triangle: Shapes the triangle waveform into either an upward-sawtooth or downward-sawtooth waveform. A symmetry value of 0 results in a perfect triangle waveform.
- Sine: Changes the angle of the waveform, resulting in a sawtooth-like waveform with peaks that lean left or right. A symmetry value of 0 results in a perfect sine waveform.
- Square: Symmetry acts as a pulse width control. A symmetry value of 0 results in a perfect square waveform.
Random Similarity slider and field: Adjust the amount of deviation when a random waveform is chosen. This alters the waveform in the following way:
- Random: Similarity determines the maximum deviation between two consecutive random values. Low symmetry settings result in random values that are minimally different from one to the next, whereas high symmetry settings result in random values that deviate significantly.
Smoothing knob and field: Determine the number of steps per LFO cycle.
By default, the LFO produces a smoothed continuous stream of controller events, but you can use this parameter to create a stepped controller signal that is similar to the output of a Sample and Hold circuit. When you set a manual step rate, the LFO rate can be changed without altering the number of steps.
Trigger buttons: Determine how the LFO reacts to incoming MIDI note on messages.
- Single: After all notes have been released, the LFO is reset by the first MIDI note on message it receives.
  Note: This means that legato playing does not reset the LFO, so keep this in mind during performances.
- Multi: The LFO is reset by each received MIDI note on message.
- Free: The LFO ignores MIDI note on messages.
Trigger Phase slider and field: Set the LFO waveform phase startpoint.

LFO Output parameters

Output Level knob and field: Scale the LFO output level.
LFO To pop-up menu: Choose a continuous controller number, aftertouch, or pitch bend as the LFO output target. You can also learn a plug-in parameter.
Output Offset slider and field: Set a positive or negative offset in order to tailor the output for the intended target.
MIDI Channel pop-up menu: Choose a MIDI output channel.
Note: This applies to both the LFO and envelope.

Assign a MIDI event to a plug-in parameter

You can assign and send MIDI events to plug-ins in the same channel strip, allowing you to control parameters without using MIDI CC messages.

In Logic Pro, choose -Learn Plug-in Parameter- from the LFO To pop-up menu.
Tap the parameter in the target plug-in.

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Logic Pro User Guide for iPad

Modulator MIDI plug-in LFO in Logic Pro for iPad

LFO parameters

LFO Output parameters

Assign a MIDI event to a plug-in parameter