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FUNDAMENTAL MECHANISM
OF
THE
SYNTHESIZER
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Listen
to a
radio or television
set,
and you
will
find that
synthesizer
music
is
generally
used
not
only
in
music programs
but
also
as
background
music
for
TV
and
as
drama
accompaniments.
You
could
say
that
we
are surrounded
by
synthesized
sound.
Why
are synthesizers used
so
often
?
This
is
because
synthesizers are capable
of
imitating the
sounds
of
other instruments and
also
creating
uni-
que sounds
that
have
never been
realized
by any
musician.
Described
below
.
are
the
fundamental
components
of a
synthesizer,, the
knowledge
of
which
is
essential
in
order
to
use
the
instrument
at
its
best.
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Fundamental
Components
of
a
Synthesizer
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VCF
KEYBOARD
VCO
Voltage Controlled OscUlator(1gffiiElHB$6ffi&)
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EG
Envelope Generator
(aifrSSSMS)
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VCF
Voltage Controlled
Filter
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VCA
Voltage Controlled
Amplifier
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VCA
EG
Signal Output
Signal
Flow
Controlled
Signal
VCO
Voltage Controlled
Oscillator.
Depress
a key,
and
the
VCO
produces
sound.
EG
Envelope Generator.
For
controlling
sound
rise
time and
damping
characteristics.
VCF
Voltage Controlled
Filter.
For
determining tone
color.
VCA
Voltage Controlled
Amplifier.
For
determining
sound
volume.
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By
various combinations
of
the
fundamental compo-
nents described about
and
by using the
many
acce-
ssories
shown
in
the block
diagram
in
the
latter
part
of this
manual,
an
infinite
variety
of
tone
color can
be
created.
-
2
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