9
FIRST STEPS
A. CONTINUOUS SOUND
Begin by setting all the controls on VOICE MODULE ONE to the
positions indicated in the diagram/photograph on page five,
except for #1a, 2a, 3, 4, 7, 8, and 10, which should be set to
the positions indicated by the asterisks.
Open the MASTER OUTPUT LEVEL control to about two-thirds.
Open the OUTPUT LEVEL CONTROL for voice module one about
two-thirds.
Now opening any one or more of the AUDIO INPUT SELECTORS (#6)
in voice module one will allow you to hear a signal from the
corresponding signal source. Listen to each of the VCO signals,
and to the noise generator (the third knob, rotated clockwise
from center, brings in the noise generator).
Experiment with various tunings of the two oscillators relative
to each other; with the keyboard and its controls; with the
manual pulse-width controls of each oscillator (note that these
have no effect on the sawtooth oscillator outputs); and finally
with the VCF manual controls for frequency, resonance, and pass
mode.
Do not at this time experiment with the controls numbered lb,
2b, or 5.
NOTE: You should pay particularly careful attention to the way
the three VCF manual controls interact with each other. For
examples
--
--
IF the frequency setting is low (left) and
--IF the mode is lowpass (LP), THEN
no signal will pass through the VCF even when all audio
inputs are open.
Conversely,
-- IF the frequency setting is high, and
-- IF the mode is highpass (HP), THEN
you will hear nothing, or very little, even though all the
audio inputs are open.
B. VOLTAGE CONTROL OF THE OSCILLATORS AND THE VCF
Listening only to the pulse output of VCO 1, and with the fil-
ter settings as given on page five, examine the switch and knob
in section lb of the panel. As long as the knob is centered
vertically, the position of the switch makes no difference.
