Anyware Instruments Moodulator Manuel de l'utilisateur - Page 14

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LOW FREQUENCY OSCILLATOR (LFO)

An LFO is basically an oscillator whose frequency range is usually below the audible spectrum.

It`s used as a modulation source because it produces cyclic voltage fluctuations.

By applying an LFO to an audio oscillator's FM input you get something like a sweep, siren type of sound

if the LFO's speed is very slow and the FM amount is relatively strong; a vibrato if modulation depth is

moderate and the speed is medium, and timbre change if speed is faster than 10/20 Hz.

Some of the basic audio oscillator functions apply here, like waveform, speed, etc.

RATE (knob)

Sets the speed or frequency of the LFO. That rate depends on the rate range set on the RANGE switch.

RANGE (switch)

This switch selects between three rate ranges: LOW, MID and HI.

SHAPE (switch)

Here you can choose the shape (waveform) of the LFO. The options are Triangle (with a linear

ascending and descending shape),

Square with a sudden change from minimum to maximum,

and SAMPLE + HOLD, which generate a new random level with every LFO cycle.