The LFO (low-frequency oscillator ) generates sub-audio range signals intended for modulation purposes.
Delay- Moving this slider up gradually delays the onset of LFO depth. The delay time can be set from 0 to 3 seconds. LFO delay is polyphonic; that is, if Keyboard mode is set to Poly, each note played will be delayed independently.
Speed- The Speed knob sets the speed of the LFO, from 0.01 to 30 Hz (with Sync button off) or from 8 beats up to 1/64th note triplets (Sync button on). The LED above the Speed knob flashes at the current modulation rate.
Wave- Selects the repeating pattern of the LFO. Available waveforms are since, ramp, sawtooth, and square. Only one waveform can be selected at any time.
Sync- When the Sync button is enabled, LFO speed will lock to host tempo when using Pro Soloist within DAW software, or to the current tempo in the top menu bar when using the standalone version.