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GROUP
7
-
SOUND
EFFECTS
19
STEAM LOCOMOTIVE
Noise
forms
the
source
for
the
Steam Locomotive
sound.
The
tone
quality of the
sound
can be
varied
with
the
VCF CUTOFF FREQ
control,
and
also
with
the
VCF
ENV-1
control.
The
"speed"
of the
locomotive
is
controlled
by
the
LFO
RATE
control.
The
effect
of
light
and
heavy
loads
can be gotten
by
varying the
Envelope
Generator
ATTACK
time.
Note
that
the
VCF KYBD/PEDAL
switch
must
be
in
the
KYBD
position
even
though
the
slider
above
isn't
being
used.
Remember
that since
the
use of
keyboard
control voltage control of the
VCF
cutoff point
is
quite
common, when
the
switch
is
in
the
PEDAL
position,
keyboard
control
voltage
is
internally
connected
to the
VCF. To
prevent
this,
then, the switch
should be
at
KYBD.
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Wind
>s
made
from
white
noise.
The
VCF
CUTOFF FREQ
control
acts
as
a
tone
control
for the
wind
sound, while
the
RESONANCE
control
can be used
to
produce
the whistling of
the
wind.
With
RESONANCE
at
about
"5",
you
get
an ordinary wind; with
RESONANCE
at
"8"
or
more,
you
get
storm
winds.
With
the
LFO/
S/H
slider
at
"0",
you
can
control the "force" of
the
wind manually
with
the
VCF CUTOFF
FREQ
control.
This
is
an
excellent
example
of using the
random
output
of
the S/H.
Try
setting
the
S/H
OUTPUT
LAG
control
at
"0" and you
can
see
how
the
"10"
position "softens" the
changes
of the
wind
sound. Also
try
the
Wind
sound
with
different
S/H
SAMPLE
TIME
rates.
By
raising
the
VCF
VCO-2/NOISE
control
(switch
at
NOISE)
to
about
"5"
or
so,
it
is
possible
to
produce sounds
similar to
that
produced by
falling rain.
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21
GUN
SHOTS
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For gun
shots,
start
with the
oscillating
VCF
(RESONANCE
control
at
"10")
as
the
sound
source.
Modulate
this
with pink
noise
by
raising
the
VCF
VCO-2/NOISE
control
(switch
at
NOISE)
to
about
"3".
Note
that
with
the
VCF
KYBD/PEDAL
control
at
"10",
the tone color of
the
gun
shots
will
depend on which
key
on
the
keyboard
is
struck.
If
both Envelope
Generators
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are triggered
by means
of the
LFO,
machine gun
shots
result.
Cannon
shots or
thunder
can
be produced
by
increasing the
Envelope Generator
DECAY
and
RELEASE
times.
These sounds
can be
improved
by
setting
the
VCF CUTOFF
FREQ
at
LOW
and
raising
the other
VCF
controls higher.
1
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30
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