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7. Module reference: Envelope group
A A A A
M M M M P P P P I I I I N N N N P P P P U U U U T T T T
A blue control signal input used for controlling the overall amplitude of the envelope.
A A A A
Sets the attack time. When the envelope receives a high logic signal at the Trig input, the output control
signal from the envelope rises up to the maximum output, +64 units. The time to get from 0 to +64 units
is the attack time. The attack is linear. The attack time is displayed in milliseconds or seconds in the cor-
responding display box. Range: 0.5 ms to 45 s.
beginning of the sound. This is only normal according to physics theory. To eliminate any click, just
increase the attack time slightly.
H H H H
Sets the time the envelope should remain at +64 units. The hold time is displayed in milliseconds or sec-
onds in the corresponding display box. Range: 0.5 ms to 45 s.
D D D D
Sets the decay time. After the envelope has completed the hold stage, it will drop down to 0 units with
the decay time. The decay is exponential. The decay time is displayed in milliseconds or seconds in the
corresponding display box. Range: 0.5 ms to 45 s.
A, H, D
A, H, D
A, H, D
A, H, D
C C C C O O O O N N N N T T T T R R R R O O O O L L L L I I I I N N N N P P P P U U U U T T T T S S S S
Each of the attack, hold and decay times can be controlled externally by using the corresponding control
signal input below the A, H and D knobs. You can attenuate the level of each control signal by turning
the corresponding rotary knob. Note that the A, H and D control inputs handles bipolar control signals.
Positive control signals on the A and D control inputs shortens the times and negative control signals
increase the times. With the H parameter it is the other way around.
G G G G R R R R A A A A P P P P H H H H
The info graph shows an approximation of the envelope gain curve.
I I I I N N N N P P P P U U U U T T T T
The red audio signal input. Here you patch a signal to the envelope controlled amplifter.
E E E E
N N N N V V V V E E E E L L L L O O O O P P P P E E E E O O O O U U U U T T T T P P P P U U U U T T T T
The blue control signal output from the envelope generator.
Signal: Unipolar.
O O O O
U U U U T T T T P P P P U U U U T T T T
The red output from the envelope controlled amplifter.
Signal: Bipolar.
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Note: A very short attack time can produce a click in the
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T T T T T T T T E E E E N N N N U U U U A A A A T T T T O O O O R R R R
Y Y Y Y P P P P E E E E
NORD MODULAR V3.0
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