Lfo 1 & 2; Delay; Shape - E-Mu ProteusX Operation Manual

6 - Voice Editor / Synthesizer Level
Modulation Cords
LFO 1 & 2
Note: References to musical intervals in the pattern LFO shapes are with the LFO routed
to pitch and a PatchCord amount of +38.
R a n d o m
S q u a r e
1 2 % P u l s e
P a t : N e e n e r
C
A #
G
H e m i - q u a v e r

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.
96
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.
Proteus X has two multi-wave LFOs for each
voice, with 17 different waveforms which
are diagrammed below.
By examining the diagram of the LFO
waveforms, you can see how the LFO will
affect a modulation destination. Suppose
we are modulating the pitch of an
instrument. The sine wave looks smooth,
and will smoothly change the pitch. The
square wave changes abruptly, and will
abruptly change the pitch from one pitch to
another.
T r i a n g l e
S a w t o o t h
3 3 % P u l s e 2 5 % P u l s e
P a t : O c t a v e s P a t : F i f t h + O c t a v e
+ Octave
G
C
- Octave
S i n e 1 , 2 S i n e 1 , 3 , 5
S i n e
1 6 % P u l s e
P a t : S u s 4 t r i p
C
F
C
S i n e + N o i s e
G
Proteus X Operation Manual