Roland SH-1 - ADJUSTMENT PROCEDURES; Bender Voltage, KCV, and Noise Adjustments

SUB-OSCILLATOR
Sub-oscillator
The sub-oscillator
is actually a
part of the
VCO
and generates a pitch
one- or two-
octaves lower than that of the VCO.
Three
types of waves are available:
a one-
octave
lower square wave, a two-octave
lower
square
wave and
a two-octave lower
pulse
wave.
Mixing the sub-oscillator
output with the
VCO
output
will give
new dimensions
to
your sound, as if
two VCO's
were
used.
Figure
(1
}
shows
the combination of
a
PWM
wave from the VCO
and a one-
octave lower square wave,
which can be
used
to
synthesize
accordion or organ
sounds.
Figure
(2)
shows the
combination
of a
square wave from the VCO and a two-octave
lower square wave,
which can
be used to
synthesize vibraphone
sounds.
Figure
(3)
shows the combination
of
a
pulse wave from the
VCO and a two-octave
lower pulse wave, which produces very
heavy
sounds suited for
rock music
and
effective forad-!ib
performance.
The correct adjustment
of
the
AUDIO
MIXER
controls is very
important since
the
sound
will vary greatly
with different
balances.
1. 1
OCT DOWN (ACCORDION, ETC. See page 34.
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1 OCT DOWN
2. 2 OCT DOWN (VIBRAPHONE, ETC.
See page
35.)
VCO
SUB
OSC
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AUDIO
MIXER
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VCO
OSC
WISE SO
3. 2 OCT DOWN (VERY HEAVY SOUND FOR ROCK.
See page 37.)
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