Casio CZ-1000 User Manual

)
Digital
Controlled
Wave
(DCW
1,
DCW
2)
The
Diqital
Controlled
Wave
section
corresponds
to
an
analog
synthesizer's
VCF
(Voltage
Con-
trolled
Filter)
The
parameters
of
this
section
are
Key
Follow
and
Envelope
Generator
parameters.
Key
Follow
controls
the
wave
form
according
to
the
pitch
of
the
keys
being
played,
while
Enve-
lope
parameters
control
the
change
over
time
of the
wave
form
after a
key
has
been
pressed.
The
Key
Follow
parameter
has
the
function
of
making
the
wave
form
gradually
approach
a
pure
sine
wave
(or
cosine
wave)
the
higher
the
pitch
of the
key
being
pressed.
It
can
be
set
to
one
of
9
different
levels.
(Fig.
1)
(Fig.
l)
ffllfflfflli!!
[\
Approaches
the
sine
wave
form
The
chanqe
of
the
wave
form
over
time
is
controlled
by
the
envelope
generator.
The
wave
form
depends
on
the
momentary
value
of
the
envelope.
With
the
PD
system,
the
change
is
performed
starting
with
a
pure
sine
wave
and
ending
with
the
basic
wave
form
set
in the
DCO
section.
(Fig.
2)
DCW
envelope
r\f\f\
Key
OFF
Key
ON
If
one
of
the
basic
resonance
wave
forms
I to
III
has
been
selected
in
the
DCO
section,
the
num-
ber
of
sine
waves
(that
is
to
say,
the
sine
wave
frequency)
within
one
of
the
window
wave
forms
K /\
r\
is
altered
between
1
and
16
according
to
the
momentary
value
of
the
envelope
achievinq
the
same
effect
as
if
the
resonance
level
of
the
VCF
in
an
analog
synthesizer
had
been
raised.
This is
very
effective
when
you
want
to
accentuate
a
particular
frequency
range.
(See
Fig.
3.)
(Fig.
3)
DCW
ENVELOPE
When
using
resonance
II
Key
ON
Key
OFF

Casio CZ-1000 Specifications

General

Synthesis Type	Phase Distortion
Polyphony	8 voices
Oscillators	2 per voice
MIDI	Yes
Timbrality	Monotimbral
LFO	1 LFO
Year Released	1984
Type	Digital
Keyboard	49 keys
Memory	32 patches
Outputs	headphones
Filters	Digital Filter
Waveforms	8 preset waveforms