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7. Module reference: Envelope group
R R R R
E E E E T T T T R R R R I I I I G G G G I I I I N N N N P P P P U U U U T T T T
The envelope can be restarted by a high logic signal connected to the yellow Retrig input. The envelope
Gate input must be receive a gate signal to make the envelope retrig.
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
T T T T T T T T A A A A C C C C K K K K C C C C H H H H A A A A R R R R A A A A C C C C T T T T E E E E R R R R I I I I S S S S T T T T I I I I C C C C S S S S B B B B U U U U T T T T T T T T O O O O N N N N S S S S
Set the characteristics of the attack part of the envelope with one of the three buttons, logarithmic, linear
or exponential. (This selector can not be assigned to a Morph group).
I I I I
N N N N V V V V E E E E R R R R T T T T
This inverts the control signal of the envelope.
A A A A
Sets the attack time. When the envelope receives a high logic signal at the Gate 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. If the logic Gate signal drops to zero before the envelope has completed the attack stage,
it will skip the decay and sustain stages and immediately proceed with the release stage. The attack time
is displayed in milliseconds or seconds in the corresponding display box. Range: 0.5 ms to 45 s.
Note: A very short attack time can produce a click in the beginning of the sound. This is only normal
according to physics theory. To eliminate any click, just increase the attack time slightly.
D D D D
Sets the decay time. After the envelope has completed the attack part, it will drop down to the sustain
level with the decay time. The decay is exponential. If the sustain level is 64, the decay stage will not be
needed, there is simply nothing to decay down to. If the logic Gate signal drops to zero before the enve-
lope has completed the decay stage, it will immediately proceed with the release stage. The decay time is
displayed in milliseconds or seconds in the corresponding display box. Range: 0.5 ms to 45 s.
S S S S
Sets the sustain level. This level will be held (sustained) for as long as the logic Gate signal is high. When
the logic Gate signal drops to zero, the envelope will proceed with the release stage. The sustain level is
displayed in 'units' in the corresponding display box. Range: 0 to 64 units.
R R R R
Sets the release time. When the logic Gate signal drops to zero, the envelope will decrease from the sustain
level to zero with the release time. The release is exponential. The release time is displayed in milliseconds
or seconds in the corresponding display box. Range: 0.5 ms to 45 s.
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. The yellow line represents the sustain
level, which is not defined in time since it depends on the gate signal time.
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.
Page 130
NORD MODULAR V3.0
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