Yamaha CS-15 Owner's Manual page 10

functions
MIXER/EXTERNAL
The
MIXER
block
regulates the input level to the
VCF
block.
The sound
sources to
be
selected
by
the
MIXERS
can
be
different
for system
land
system
II.
MIXER
1
(Input
of
system
I)
System
I
can
use the
VCO
1
output and
noise or ex-
ternal signals
as a
sound
source.
VCO
I
can be
adjusted
in pitch
by
the
TUNE
knob
alone, therefore
it
is
suited
to the
produce
basic
sound
or to create effect sounds
by
noise.
®
EXT/NOISE
This
knob
adjusts the input
level to
the
VCF
1
block
when
external
signals
or noise connected
to the
EXTERNAL
IN
terminal
on
the rear panel
are
used
as a
sound
source.
Selection of external
signals or noise
can be
made
by
the
EXT/NOISE
selector
switch
in
the
EXTER-
NAL
block.
• The
input
level
of the external
signals
is
deter-
mined by
this
knob
regardless
of the
TRIGGER
LEVEL
knob
of
the
EXTERNAL
block.
®
VCO
1
Adjusts input
level to
the
VCF
1
block
when
VCO
1
output
is
used
as
a
sound
source of
system
I.
MIXER
2 (Input of
system
II)
This can choose
VCO
1
and
VCO
2 outputs
as
sound
sources.
The
particularity
of
the
VCO
2
SSESS
output
is
that
it is
possible to produce, with the help
of the
DETUNE
knob
(5)
,
a
pitch difference to
VCO
1.
Thus, system
II is
suited for
DETUNE
applications.
•
For
full
use of the
two systems
synthesizer
CS-15see
page
20.
®
VCO
1
Adjusts the input
to the
VCF
2 block
when
VCO
1
output
is
used
as a
sound
source.
®
VCO
2
Adjusts the input
to the
VCF
2 block
when
VCO
2
output
is
used
as a
sound
source.
The
EXTERNAL
block
is
an input controlling section
which
permits the use of external
signals,
such as
from an
electric
guitar
connected
to
the
EXTERNAL
terminal
on
the rear panel, as
sound
sources
to
be passed
on
to the
VCF
and VCA.
•
For the
EXTERNAL
signals
and
TRIGGER LEVEL
knob
refer
to page
15.
NOISE
If the
EXT/NOISE
switch
is
set
to
NOISE,
noise
can
be used
as
the
sound
source with the
EXT/NOISE
knob
of
the
MIXER
block.
The
noise
is
white noise including
all
frequency
components from low
to
high
frequencies.
It
is
well suited
as
sound
source to imitate such natural
sounds
as
wind, waves, and locomotion sounds,
etc.
©
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