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110
E-MU Systems
Edit Menu
Low Frequency Oscillators (LFOs)
Shape
LFO waveforms have different shapes. The shape of the waveform deter-
mines the effect of the LFO. LFOs have traditionally been used to add
vibrato or repeating movement to a sound. These new shapes offer a lot of
new programming possibilities.
If you modulate the pitch of an instrument, it’s easy to visualize the shape
of the waveform. For example, the sine wave has a smooth, rolling shape
that changes the pitch smoothly. The square waveform changes between
two pitches abruptly. A sawtooth waveform increases the pitch smoothly,
then abruptly changes back down. The available waveforms are shown
below.
T r i a n g l e
S q u a r e
S i n e 1 , 2
S i n e 1 , 3 , 5
S i n e
S a w t o o t h
2 5 % P u l s e
3 3 % P u l s e
1 2 % P u l s e
1 6 % P u l s e
R a n d o m
P a t : F i f t h + O c t a v e
C
C
G
P a t : O c t a v e s
+ Octave
- Octave
C
F
G
P a t : S u s 4 t r i p
C
G
A #
P a t : N e e n e r
H e m i - q u a v e r
S i n e + N o i s e
LFO Tricks & Tips
:
• The Random LFO wave is truly
random and is different for
each voice and layer.
• The Pattern (Pat) waveforms
will sound the same on
different layers and voices.
• Sine + Noise is very useful for
simulating trumpet and flute
vibrato.
★
When routing Hemi-quaver
to Pitch:
+38 = major scale
-38 = phrygian scale
+76 = whole tone scale
(+38) + (+76) = diminished
(two cords)
odd amount = S+H sound
Note:
References to musical
intervals in the pattern LFO
shapes are with the LFO
routed to pitch and a
PatchCord amount of +38
.
Содержание Proteus 1000
Страница 1: ...Operation Manual ...
Страница 28: ...20 E MU Systems Setup Instant Gratification ...
Страница 62: ...54 E MU Systems Master Menu MIDI Parameters ...
Страница 148: ...140 E MU Systems Programming Tutorial Linking Presets ...