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The Envelope Generator
(EG) is used
to create contouring
effects, in combina-
tion
with
the VCF,
VCA,
or both.
Con-
touring effects allow the sound of a note
to change and evolve as time passes.This
evolution
in timbre
(tonal quality)
can
take anywhere
from
a small part of a
second
to thirty
seconds
or more,
and
different
parts of the contour
(attack,
decay, etc.) can proceed at a different
rate.
These
effects
are
extremely
portant in producing expressivesounds —
sounds
that
are
punchy,
gentle,
sassy,
funky, orchestral, futuristic,
or just about
anything you want.
A contour is a pattern of changes that
begins when you depress a key. It attacks
up to a certain point
(the attack peak),
then
decays down
to a sustain
level,
remains
at that
sustain
level
as long as
you
hold
the
key down,
and finaliy
releases to O when you release the key.
There are six EGS in the Polysix,
one
per
voice,
so that
each
voice
may
independently
articulated.
The VCF EG Depth control
allows the
amount of contouring
(enveloping) to be
continuously
varied and either
normal
inverted
(reverse, negative) envelopes to
be used. The VCA
can be controlled
either
a full depth
non-inverted
(normal)
contour
from the EG, or by an indepen-
dent gate-type envelope.
Controls
The Attack,
Decay and Release con-
trois can be independently
adjusted
over
a range of about I milli-second
(1/1000
Of
a second)
to
over
15
seconds.
All
controls
are fully
programmable.
Dieser Hüllkurvengenerator
zur Steuerung des Spannungsgeregetten
Verstärkers (VCA).
Er rege't Anstieg und
Abfali der Lautstärke im Zeitabfauf Oder,
in
anderen
Worten,
bestimmt,
Amplitudenkontur
Oder
Hüllkurve
Ausgangssignal
bekommt.
im-
be
Attack
time
or
Anstiegszeit
A:
Durée
d' attaque
by
Tiempo
de ataque
Sustain
level
Haltepegel
s:
Niveau
de sustain
Nivel
de sostenido
Ce générateur d'enveloppe est utilisé
(EG) djent
pour
avoir un contröle
teur
VCA
(amplificateur
tension).
II détermine
volume (l'amplitude)
augmente ou chute
welche
dans le temps. En d'autres termes, il crée
das
une enveloppe
ou un contour
O
0
9
9
10
DECAY
ATTACK
EG
3333
Decay time
Abfallzeit
D:
Durée
de Chute
Tiempo de extinci6n
Release
time
Ausklingzeit
R:
Dureée
d'extinction
Trigger signal
Tiempo de liberaciön
Triggersignal
Signal de déclenchement
Senal de disparo
Este generador de envolvente se utiliza
para controlar e) VCA (amplificador con-
sur ('amplifica-
trolado por tensi6n). Determina la forma
commandé
en
la faqon dont
te
de aumento
y disminuciön
(ampfitud) en eI tiempo suplementario.
En otras palabras, crea Ia envolvente
contorno
del sonido.
du son.
o
o
9
SUSTAIN
RELEASE
Maximum
volume
Lautstärkemaximum
Volume
maximum
Volumen
måximo
del volumen
o
Time
Zeit
Durée
Tiempo
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