E-Mu Ultraproteus, Руководство по эксплуатации, Страница: 112 / 307

76 UltraProteus Operation Manual
PRESET PROGRAMMING
FUNCTION GENERATOR
The Function Generator is another kind of modulation source which is much
more programmable than an envelope generator or an LFO although it can
function as either. The function generator can be used when you want the type
of complex control that a normal AHDSR envelope cannot handle. Refer to the
diagram below.
The function generator can have up to eight segments, each with a Level and a
Time parameter. The level parameter can be either positive or negative. Each
segment of the function generator can also have a different Shape . There are 63
different shapes to choose from, many of which have unusual shapes or are
random in nature.
The function generator also has the ability to jump from one segment to an-
other based on certain programmable conditions. For example, the function
generator could be programmed to jump back to segment 5 if the key is held,
but jump to segment 8 whenever the key is released.
L1
T1
L2
L3
L4
L5
L6
L7
L8
T2 T3
T4
T5
T6
T7
T8
Chaos
Linear
Ex
po
ne
nt
ia
l
Ex
p
+1
1
2 3
6
5
4
7
8
Jump if
Note On
Jump if
Note Off
FUNC GEN F1S1
Level +127
FUNC GEN F1S1
Shape Linear
THE FUNCTION GENERATOR
SHAPES ARE DIAGRAMMED IN
THE REFERENCE SECTION OF
THIS MANUAL.
ROUTING THE FUNCTION
GENERATOR TO CONTROL
PITCH MAKES IT EASY TO HEAR
WHAT YOU ARE DOING.
Parameter
Segment Number
Function Generator
1 or 2
Value/Shape