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Fig.
1
shows
an
example
of
an
envelope
employing 8
steps.
There
are
two
attacks before
the sustain
point,
as
well
as a
third
attack
after
the key
is
released, resulting
in
an
"after-
envelope".
(Fig.
2)
(Fig.
3)
Li
CZ-3000
Conventional
anal
og
syn
thesizers
Key
ON
1
Attack
•
time
Analog
synthesizers usually require the
setting
of envelopes according
to
4
parameters:
Attack
time,
Decay
time,
Sustain
level
and
Release time
(hence, the
name
ADSR
system).
With
the
envelope generator
of the CZ-3000, only
3
step settings are required
to attain
the
same
effect.
BLOCK CONFIGURATION
The
PD
sound
source of
the
CZ-3000 makes
it
a
fully digital
synthesizer. Actually,
however,
the
DCO
(pitch
and
basic
waveform
setting),
DCW
(timbre
control),
and
DCA
(volume
con-
trol)
digital circuits
of the
Parameter
Section
result
in
a
block configuration
that closely
resembles an analog
synthesizer.
The
block configuration
of the
CZ-3000
consists of
LIME
1
and LIME 2
which
make
up
a dual
system.
DETUNE
allows
you
to
create differences
between
the
sounds generated by LINE
1
and
2
to
produce
subtle
nuances. With
LIME
SELECT,
a single
line
can be output
or
combined
with the
detuned
line for
a
total
of
4
line
output
settings.
CZ-3000
block configuration
.
r-.r
i
DCW
I
(Timbre)
*
ENV
DCA
I
(Volume)
_JNV
1
[^
ir-
,
^
D£TUNt
-J
SELECT
LIN!
2
DCW
2
^
DCA
2
I
(Timbre)
^^
(Volume)
DCW
2
(Timbre)'
•VIBRATO
is
the
parameter
that oscillates the
low frequencies
of the
DCO
and
applies a
vibrato
effect
Another parameter
applied
to
DCO
is
OCTAVE.
DCO
(DIGITAL
CONTROLLED
OSCILLATOR)
DCO
corresponds
to the
VCO
of
an analog
synthesizer,
and
is
comprised
of
WAVE
FORM
for
selection of
the basic
waveform
and
ENV
(pitch
envelope)
for
control of the pitch
over
time
for
a
pressed
key.
The
dual
system
line
provides an independent
DCO
1
and
DCO
2 which can
be used as
desired.
PART
1
NORMAL
MODE
15
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