User Manual

MODULATION

Iris 2 | LFOS Page 53

Max

This mode will select whichever value is the greater between the two modulation sources at any

given moment.

LFOS

When a Low Frequency Oscillator (LFO) is applied to a Modulation Knob or Slider, that LFO will

cause the parameter value to oscillate in a bipolar fashion around the center point of the knob.

This pattern is decided by the shape of the LFO wavetable chosen in the LFO Type menu. By

default the LFOs will start with a table of sine waves. If you drag the waveform display or Shape

Slider located below it, you will interpolate between the shapes in the LFO wavetable.

There are ﬁve LFOs in Iris 2. You can view each LFO by clicking on the numbered selection

buttons to the left of the LFO waveform display. Each of the LFOs have the following parameters:

Type: The basic shape wavetable for the LFO is chosen in the Type menu. These

shapes range from conventional waveforms like Sine, Square, or Saw (many sampled

directly from classic analog oscillators) to precision digitally-generated step patterns

and even audio-rate multipliers for basic FM & AM modulation.

Shape: The Shape slider allows you to scroll through the various shapes stored

within the wavetable that was chosen in the Type menu. This control is disabled for

Sample & Hold.

Sync (o by default): With Sync turned on the Rate value changes from a decimal

value in Hertz to a note division value based on the audio editor host tempo. This

allows you to set the LFO to cycle at musical rate such as 1/8th note or one-bar.