Yamaha CS-80 - Touch Response (Keyboard Dynamics); Memories 1-4

m
32
VCO (Voit^g^
Controlled
Oscillator}
[20]
SPEED
-
Adju^u
the
rate of pulse width
modula-
tion t>f
the
Square wave,
provided
the
PWM
lever is
mo^ed
away from it^
"0"
position.
[21
]
PWM
-
Adjusts
the depth
of
Pulse
Width
Modu-
lation
ithe di^vi^tion
in
square wave-
duty
cyd&). A
"0"
setting yields;
no
modulation.
(22
J
PW
—
Sets the basic
duty
cycle of the square
wav«
from
a symmetrical
wa^e
(50%)
to a narrow
puke
(90%}.
[23]
SQUARE WAVE
-
Turns
OM
the
square
wave
generating
circuits
when
ihe
switch is
rocked
forward
[24]
SAWTOOTH
WAVE
-
Turns
ON
the
sawtooth
v^ve generating
circuits when the
switch
is rocked
fo/ward.
[25]
NOISE
-
Jmroduces
white
noise
into
the VCO
output as the slider
is
n^oved
up
(-10
is
maximunri
noise),
NOTE:
The
numbers
above the notation
to the
ri^ht
indicate
the
overtone
number.
All notes
(except
pure
sine
wave notes)
have
overtones
which are
not
heard
separately,
but which
give
the
note its tonal
ch^r^cter.
The first
overtone is the
second
harmonic
of the
fundamental
(i.e., twice
its
frequency),
etc. To he^r
the
individuaJ
overtone,
set
RESh
[27] ,
RESl
[2Q]
and
RESOMANCE
[S] at
maximum,
and
gradually
move LPF
[28]
down.
"^^^.
nu
Slow PLi^#
Width
It^ddul^ti^ri
J**%
505&
&0% 50%
9Qf%
50%
"LrLnLrr-LrLTLRj—Lr
'mirmj
Fast
Pulse Widftr McMJulati on
11 13 15
lilJiBI
m jH
11 y y ii
iLn-i^^
DcMOvib-i H^. >*<....
90% Square W3v*>
Pulse
Widlh
iilBiiiP
11
13
15
L^n^
^
L
lOdd-l>di! hPM-rrvofi.Ek
Onlyi
50^
Square
UV^ve
Pulse iiVidtN
4
5
e
7
S
9. 10 11 12 13 14
15
t*
f
^
iiilB
r-ynd/imMiMl
lOrtd £ L^>*p. ^rur hj.
i«qri^i,-
WEE'E
*MOTE: The
fLindamenla!
{C[ is Th^
note
pFaved.
and
the ^m^ll^r
Hioiation
to the Krcjhi
suggi^st
the
harmoitics
(ovftTiEjiiesh
oi
that
note, all of
which
are
simuhaneoM^ly
tf^nyrijied
hy the VCO.
Noise