Roland juno-60 Owner's Manual page 16

HPF
(HJflh
P«b
Firtar)
This
filter lets
the high frequency harmonics
pass
and
cuts off
the low
frequency harmo-
nics.
As
this
f titer
is
not
voltage controlled.
Cutoff Point
is
changed by only moving
the
knob.
14
©
FREQ
•
Cutoff Frequency
knob
This knob
sets
the Cutoff point of the
HPF.
In
its
lowest
position,
the
DCO
output
passes
the
filter
unchanged. As
you
raise
the knob,
Cutoff point
will
be boosted and only
the
higher
harmonics
are passed.
VCF
(Vottape Controlled
Filter)
This
filter
changes
the tone color by
cutting
off or emphasizing harmonics. This
filter lets
the
low frequency harmonics
pass
and
cuts off
the
high
frequency harmonics, and
is
con-
trolled
by
a voltage.
(2)
FREQ
•
Cutoff Frequency knob
This
knob
is
to
change
the Cutoff Point
of the
VCF.
As you
lower the knob, the frequency
in
the high pitch range
will
be cut
off,
and the
sound
will
fade out
when
the
waveform
be-
comes
nearest to a Sine Wave.
»
n^=?
+ RefertoP.15
(3)
RES
« Resonance knob
This control emphasizes
the Cutoff Point
set
by
Cutoff
Frequency knob
2
.
As you
raise
the knob,
certain harmonics
are
emphasized
and
the
created sound
will
become more
unusual
more
electronic
in
nature.
If
you
alter
the Cutoff
Frequency knob
while the Reso-
nance
knob
is
set to
a
high
level,
you
can
create
a
type of sound
that
is
attainable only
from
a synthesizer,
if
you
raise the
Resonance
knob
up
to
the
maximum,
the
VCF
will start
Self Oscillation.
(§)
ENV
• Envelope Modulation
knob
When
the
Cutoff Point of the
VCF
is
being
modulated by
the output
of the
Envelope
Generator,
this
knob
is
used
to adjust the
intensity of the modulation.
You
can
change
the Cutoff Point
of
the
VCF
in
each note with
the
ADSR
pattern previously
set.
So
the
tone
color
of
one
note can be changed
quite
drastically.
(5)
Polarity switch
This
is
the
selector switch for the polarity
of the Envelope.
When
it is
set
at reverse
polarity,
the
ADSR
pattern
will
be
reversed
and
the
tone
color alteration
will
be
the
other
way
round.
*
This often means the Cutoff Frequency
of
the
VCF
(HPF)
will
need to be
set
higher.
©
LFO
•
LFO
Modulation
knob
When
the Cutoff Point of the
VCF
is
being
modulated by
the output
CV
of the
LFO,
this
knob
adjusts the depth
of
the growl or
wan
effects.
®
KYBD
•
Key
follow
knob
When
the Cutoff Point
is
being controlled
by the
KYBD-CV
(Keyboard
control
voltage),
this
knob
adjusts
the
level
of the
KYBD-CV.
It
prevents
any
inconsistency
in
the
harmonic
content caused by
pitch
alteration.
Conse-
quently
this
knob
is
usually
set
to the maxi-
mum
on such
a long
keyboard,
but can
be
set
to your
taste.
NOTE
* The
Self -oscillation
of the
VCF
does not
gurantee an accurate
pitch.
Therefore,
you
cannot expect
a
correct scale
when
playing
the keyboard.
*
If
using the
VCF
Self-oscillation as
a
sound
source,
its
pitch
may
turn out unstable.
In
such
a case,
move
the position of
the
FREQ
knob
until
you
get a
stable pitch.
(If
you
store
it
into
memory
and use
it
later,
its
pitch
will
be stable.)