Emulator Composite.book - Creative

6 - Voice Processing
Amplifier, Filter & Auxiliary Envelopes
LFOs & Lags
A Low Frequency Oscillator or LFO is simply a wave
which repeats at a slow rate. LFOs are used to add
animation to a sound. Emulator X has two multiwave
LFOs for each voice, with 17 different
waveforms which are diagrammed below.
Frequency
Sets the initial speed of the LFO. The frequency range
is 0.08 Hz (12.5 seconds for one cycle) to 18.01 Hz.
Note: References to musical intervals in the pattern
LFO shapes are with the LFO routed to pitch and a PatchCord amount of +37.5. See
the Pitch Amount Chart on page 144.
C
Random
Square
12% Pulse
Pat: Neener
A#
G
Hemi-quaver
Triangle
33% Pulse
Pat: Octaves
+ Octave
- Octave
Sawtooth
Sine 1,2 Sine 1,3,5
Delay
Sets the amount of time between playing a key and the onset of modulation. This can
be used to simulate an effect often used by acoustic instrument players, where the
vibrato is brought in only after the initial note pitch has been established. The delay
range is adjustable from 0 seconds to 20 seconds.
Shape
Sets the LFO waveshape which determines the effect of the LFO. There are 16 LFO
waveforms and a random, sample & hold type of wave which outputs random levels at
the LFO rate.
Variation
Sets the amount of random variation on the LFO frequency each time a key is pressed,
which is useful for ensemble effects, where each note played has a slightly different
modulation rate. The higher the number, the greater the note to note variation in the
LFO rate.
C
122 Emulator X2 Operation Manual
Sine
25% Pulse 16% Pulse
Pat: Fifth+Octave
G
C
C
Pat: Sus4 trip
F
G
Sine + Noise