NOISE GENERATOR
AND AUDIO
MIXER
NOISE GENERATOR
The NOISE
GENERATOR
is
used
as the
sound source
for effect sounds like
wind,
surf, and thunder.
Two
types
of noise are available: white
noise and pink noise.
White
noise is the
random combination of
all frequencies, This kind of noise is like
the hissing
sound which can
be
heard
when an FM tuner is set at a point
where
there is no
station broadcasting. Pink
noise is similar, but
has
some
of the higher
frequencies filtered out to produce a
sound
more like
a
waterfall.
The random notes
of the MOD (Modulator)
are due
to
irregularly changing voltages
produced by sampling the
noise
wave.
AUDIO MIXER
This mixer mixes outputs
of the VCO,
Sub-osciHator,
Noise Generator, and the
external
input
signal.
The OVERLOAD indicator lights
when the
external level is
excessively
high.
The
indicator
is not
related
to
the position
of
EXT
SIG
slider. Keep the externa!
signal
level so that the
overload indicator goes
on
at the
peak volume.
NOISE
WAVEFORM
MIX
j
Adding
S
1
to
vco r
INC
UB-
3 P
osc
=UN
1
c
CIF
ct E
LE
)ow
nn
_ L
-
<y
13
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