The Modulation effect creates vibrato and tremolo type effects and more. It works by having a filter or other type of effect modulated by an LFO (low frequency oscillator).
Effect Variation - The type of modulation. Amplitude, pan, frequency, low pass filter (-24, -18, -12, -6 dB per octave ladder filter), high pass filter, band pass filter, notch filter and comb filter.
Invert Waveform - Inverts the waveform.
Waveform Type - The type of waveform.
Waveform Shape - The shape of the waveform.
Waveform Phase - The phase of the waveform. Available in the multitrack editor only. Note: LFO Sync must be enabled.
LFO Rate - The speed the effect is modulated.
LFO Sync - Synchronizes the LFO with the tempo. Available in the multitrack editor only.
LFO Depth - The amount the effect is modulated.
Filter Frequency - The filter's cutoff frequency.
Filter Resonance - The amount of filter resonance (feedback). For the notch filter, it controls the bandwidth.
Filter Overload - The amount the filter is overdriven.