Korg MONO/POLY Owner's Manual page 11

tracking
is
an extremely
useful
function
*\
which
if*
VCF
is
made
to "follow'*
ihe
note
as ii
is
played
on
the
keyboard,
Thd
produces
more
evsn and
realistic
sounds
by insuring that ihe tonal quality
(timbrel
of
a given
sound remains con-
sistent
over the
full
5
octave range
f
100%
tracking).
Without keyboard
tracking, a
given
sound
played
at
"C" would sound
bright
and bu/rv
at
the lowest "C'\
and
muted
c
even
non-existent
at
the
highest
X*\
The Mono/Poly p
s
VCF
always
tracks
the highest
note
ptoyed. to avoid
muting
notes above
the cutoff frequency.
Trie
Mono/Poly
also
allows deliberate
over- or under-tracking. This
produces
smooth
and
controlled tone quality
changes
as
you
move up
and
down
the
keyboard, for
special effects,
or to simu-
late
instruments with changing timbres
(e.g>.
many
orchestral
and keyboard
m*
struments)
At
settings of
approximately
*7", the
VCF
follows the note
on
a
1
for
1
basis
O00/U
Below
7.
the
VCF
In
effect "legs
behind"
the
note
played: this
causes notes
to
sound
brighter as
you
go
down
»n pitch,
and
rounder
or
mellower
as
you
ascend. Conversely,
at settings
above
7.
the
VCF
cutoff increases
"faster" than does
the keyboard
pitch,
which
Causes
notes
to
sound
brighter as
you go up
in
pitch
and
derker as you go
down. The
further the control
is
from
7
t
the
more pronounced
this
tona'
change
will
be.
When
the
VCF
is
self-oscillated
and
used as
an auxiliary
sound-source, the
KBD TRACK
control allows you
to
"play" the
VCF
as
II it
were
a
regular
oscillator
Additional
I
y. special
scales
known
as
Mitrotonal
(e.g..
"quarter
tone"!
and MacroionaJ
can be created
at
settings less
than, or greater
than
7.
respectively
Variable keyboard tracking
is
ex*
tremety useful
m
producing
realistic in-
strumental
sounds,
and
In
helping to
make
any particular
program sound
good
over a
full five
octave
range.
3)
EQ
Hier
kann
eingeslellt
warden, wie
die
Beschne
id
frequent
durch den
VCF-
Hul
I
k
urvengenera
t
or
bee
i
n
f I
u&
t
werden
soil
BeiEinstellungenrechlivonPositrt>n
erhbht
sic* die
Beschneidfrequenr mit
anstetgender HOI
Ik
urvengenera tor
Steuer-
spannung
(dor
fCtang
wird
heller)
Bel
E
instellungen
links
von
der
O-Position
verandert sich die
Baschneidfreojuem
umgekehrt
proportional zur Steuerspan-
nung
lein
aehr ungewohnlicher E
Ifefct)
41
KBO TRACK
D>eser
RegJer ermoglichtdieVarlkerung
der Beschneidfrequen/
m
Abhangigke<t
von
der
Tonftohe
der
angeschlagenen
Taste
Dieser
Effekt
erleichtert
dte
Erwugung
r,B
deft
Klanges
von
Geige
und Sexophon.
bei
denen
sich
die KUjng/
farbe
mil
/unahmender Tonrohe immer
mohr
au
merit
AH
Interessantes
Experi-
ment kann
man
/.8
Filter
Eigenoszil*
letion
an
die
TonhGbe
oer
angeschlagwvn
r as ten
koppeta.
Da/u die
vaer
VCO
LEVEL-Regler
auf
steJIen,
die Be
sohneidfrequen/
(CUTOFF}
auf 5
f
RESO
NANCE
auf
10 und die
Keyboard^
Synchronisierung (KBO
TRACK)
auf
etwa6oder7
51
VCF EG
Oer
Hullkurvengenerator
lEngliseh
"Envelope
generator"
-
EG)
des
VCF
dlent
?ur /eilebiaufbezooenen
Anderung
der Bescnneldfrequenz. Auch
zur
VCO
und
I
mputswellen<Moou
lation
einsetrbar
Naheres
unter
VCA
EG.
wo
auch
die
Bedienung
der Regler beschrieben
ist.
3)
EG
Controte
la
boon
dont le
VCF
EG
tgenierateur
d
f
envelope©} affecte
la
treV
Quence de
coupure* Toue
tea
rdglages au-
03S5US de
(rotation
dans
le
sens horaire A
partir de
la
position centrale} font aug-
menter
la
frequence de coupure
(la
tonalit* est
plus
brlllante)
au fur
et
A
meaure
que
la
tension
de
commande du
genorateur
EG
augmente. Cependant.
s)
ke
bouton
est
regh* sur
une
position
inffr
rieure
a 0,
la
frequence de
coupure
decent inveraemem
proportionneile a
la
some EG
CV
(ce
qui permet
d*obtemr
un
eHet frenohement
IrvhabitueO-
4t
KBO TRACK
Co
rcglage est
utilise
pour
f
aire
var
ier
ia
frequence da coupure en
fonction de
la
duree pendant
faquelte la
loucne
acttonnee
du
clavier est jouee
Ceci
est
ires
utile
pour
produce
des
tonorites
riches
comparabtes
A
celles
d*un vioson ou
dun
saxophone
dont
la
timbre
dement
plus ciair
au
fur ei
a
mesure que
des notes
eievees sont jouee*
Une
experience
inteYessante consiste a
provoquer une
auto oscillation
du
filtre
VCF
qui
suit
la
hauteur
du son du devter
an
plagant
les
quatre poieniiometres de
niveau dee
osciltateurs
VCO
sur 0.
A
rogter
Ia
frequence de coupure
sur 5.
la
rtonan-
oe
sur
10
et
*
placer le
rtgiage
KBO
TRACK
aux
environs
de 6
ou
7
5)
VCF
EG
Ce
generoteur
d
F
enve4oppe
est utilise
pour
covoquer des rJttngernents de
la
frequence de coupure dans
le
temps.
II
peut
servn
auasi
pour
la
modulation
VCO
et
PW
Se
reporter a
la
description
du generateur
VCA EG
pour
avoir
pfcjs
amptes de
details
A
oe
sujet
Le
fonction-
nement
est
idennque.
B,
VCF
Envelope Generator
The
Voltage
Controlled
Filter's enve-
lope generator controls
the
filter
contour-
ing
effect,
Tnis
produces the
dynamic
changes
in
timbre over time
which
is
one
of the
most
important
abilities
of a
synthesiser. Variable
amounts of both
normal
and
invertal (reverse)
enve+optng
is
obtained
by
use of the
EG
Intensity
Control
as described
above
In addition,
the
VCF EG
may
also
be used to
sweep
the "slave"
VCOs
in
the Effects section,
and
to
vary the
VCO*"
Pulse
Width
for
Pube
Width Modulation.
The
selecton
and
intensity
of those effects are con-
trolled
withfn the Effects
and
Pulse
Width
Modulation
Sections respectively. (See
appropriate sections
be low
J
Attack; Varies
the
rise
time
of the
EG
contour from
zero to the attack
oeafc
from
t
millisecond to
approximately
10
seconds
Decay:
Varies the
initial fell
time of
the
EG
from
the attack
peak
to the
Sustain Level, over a range of approxi-
mately
1
miPlisection
to
20 seconds.
Sustain Level:
Var*s
the Sustain
Level of
the
EG from
to
100%.
of
the
attack peak.
Release:
Varies the
final
fall
time
of
the
EG
following
me
release of
all keys,
from approximately
f
millisecond
to
about 20 seconds