Yamaha CS-15 Owner's Manual page 20

applications
USE OF
TWO
SYSTEMS
1.
Using
them
with
the
same tone
quality
a.
Pitch
(FEET)
set at
same
position for
unison
ef-
fect.
Though
slightly electrical,
it is
possible to
produce
a rich
sound.
b.
Even
if
the pitch
setting
is
the same,
aim
at a
beat
effect
by
changing the pitch of
VCO
1
and
VCO
2
slightly.
c.
Produce unique sounds with
the
FEET
of
VCO
2
set to
1
to
2 octaves
up
or
down
of
VCO
1
.
d.
Produce sounds
that are special to the synthesizer
by making
VCO
2 perfect
fifth
interval
of
VCO
1
by
means
of
DETUNE
of
VCO
2.
2.
Using
them
with
different
tone
quality
a.
It
is
possible to change
the
tone
quality instantane-
ously
by
setting
two
kinds of tones
and employing
the
MIXER
part during performance.
b.
Effects that could not be produced with one
VCF
and
EG
system
are possible
by
the double
layout.
Performing
FEET
changeover with both systems
set
to the
same tone
quality.
Set
VCO
2
and
EG
2 to the tone of
the
trumpet
by
referring to
the previous page. Balance
VCO
1
and
VCO
2
for
unison with
the use
of
VCO
2's
DETUNE
knob.
Complete
unison can be obtained
when
there
is
no
beating
between
the
two VCO's
after the
knob
is
adjusted.
Though
the
sounds produced
may
be
slightly electrical as
compared
with those
in
only
one
system,
a richer
sound can be obtained.
Beating
Perfect F
ifth
Unison
Perfect F
ifth
Next,
slide
the pitch
of
VCO
2
with
DETUNE.
Beating
will arise
between
the
two VCO's, which
shows
you
that the
sound
source stems
from two
sys-
tems. This
is
useful in
obtaining
a
concert
effect
and
producing accordion
sounds.
Return
the
DETUNE
to
unison and produce
various
sounds with
FEET
changeover. Return
VCO
1
FEET
to
8' and
VCO
2
to
4'
to try
synchronizing
VCO
1
and
VCO
2
with
VCO
2
in the,
one
octave
up
position.
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VOLTAGE
CONTROLLED
OSCILLATOR
2
LFO
MOO
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PW
With
the settings
above
you
will notice that the
sound
clarity
is
enhanced.
If the
sound of
2 octaves
higher
is
added, an
effect
just like
supporting
the
melody
with
a
piccolo
is
obtained.
Let us
now
set
VCO
2 to a
lower
octave. Set
FEET
to
32'.
This
produces
strong
tones.
Then
set
it
to 64'.
You
can
achieve
heavy
bass
sounds
that
even an
electric
bass
would
be hard put
to surpass.
Using
two
systems
set
to
different
tone
qualities
It
is
difficult to
change
the
tone of
the synthesizer
during performances.
When
two
systems
are in
use
like
CS-15,
this
makes
it
very convenient
to
change
the tones
by
operating the
MIXER
with different
tones having
been
set
previously
(for
example,
trumpet
in
1
and
flute in 2)
set.
To
use the
trumpet
tones turn
the
VCO
1
knob
to
right.
To
use the
flute
alone turn
it
to
left
and
turn
VCO
2 to
right.
It is
also possible to
use
both
of
them by
balancing the
tones with
VCO
1
and
VCO
2.
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TIME
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