ARP ODYSSEY - EXPERIMENT 3. PHASE SYNCHRONIZATION

EXPERIMENT 3. PHASE
SYNCHRONIZATION
1
.
Now
look
at
th& part of the panel marked VOLTAGE
CONTROLLED
OSCILLATOR
2,
VOLTAGE
CONTROLLED OSCILLATOR
2 is exactly like VCO
1 except for
two things:
• VCO 2 does not hav^ a
low-frequency
operating range,
« VCO 2 can
be
SYNCHRONIZED to
VGOL.
Lower the blue
slider under
the AUDIO MIXER box
and raise the green sJider. Now
play
the keyboard.
You are now listening to VCO 2.
2.
VCO 2 can be switched between
sawtooth
wave and
square
wave the same a$
VCO
1
, and the
frequency
of
VCO
2,
when
it is
not
pha^e-synohroniaed, can be
varied in the same
manner.
VCO
2 also has pulse
width
modulation hke VCO 1- Try the
experiments
that
were
done
above on VCO 1 with VCO 2.
:
. .
I
Phase-synchronisation
of the
two oscillators is
accomplished by the switch at the top
right of VCO 2
labelled EYNC OFF/ON.