ARTURIA – ORIGIN – USER’S MANUAL
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corresponds to point 4. Points 1 through 4 contain two parameters (filter envelope only): the LEVEL
and the RATE. Point 0 only has the LEVEL parameter.
DADSR envelope on Origin
The 2D envelope on Origin
11.2.3
The low frequency oscillator
The LFO (
Low Frequency Oscillator
) possesses more or less the same characteristics of the classic
oscillator but it only produces frequencies lower than 20 Hz. In other words, you won’t hear the
pitch of its sound directly. It creates a cyclic modulation on the setting to which it is connected.
For example:
-
If the sine waveform from an LFO modulates the volume of an amplifier, the sound
increases in volume then disappear in a varying manner following the speed (the
frequency) of this LFO. This produces a tremolo effect.
-
A sine waveform from an LFO modulating the frequency of an oscillator would produce a
vibrato
effect.
-
With an LFO sinusoid wave modulating the cut-off frequency of a lightly resonant low-pass
filter, you can obtain a “wah-wah” effect.
