ARP ODYSSEY Manual
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GLOSSARY
BASIC BUILDING BLOCKS
Attenuator:
on the Odyssey, a
Jr
D
slider that lets sjgnal through
.
when it's up and cuts it off
Oscillator (VCO}:
generates tone.
when it's down.
Filter (VCF}:
changes tone color.
Audio range:
the range of pitches
Amplifier (VCA}:
controls
volume.
that your ear can hear.
Envelope Generator (ADSR and
Harmonics:
overtones. The more
AR):
controls attack
and
decay.
harmonics are present, the
ONIC
Frequency:
pitch.
Timbre:
tone color.
Amplitude:
volume
Envelope:
attack
and
decay shape.
ODYSSE'r .. E. MS
ADSR and
AR:·
attack, decay, sustain
release.
Y:={)
aFand
rele&:
more brilliance
the
sound will
have.
Hertz(Hz):
an electronic term
meaning "cycles per second."
The
human ear can hear pitches
from 20 tG 20,000 cycles per
second,
or 20Hertz to 20
kiloHertz. (20Hz - 20KHz)
.
Highpass filter (HPF):
changes
timbre by cut.ting
off
low
harmonics and passing high
ones.
Internal
clock:
adjustable
low
frequency oscillator.
Lowpass filter (VCF}
:
changes
timbre by cutting off high
harmonics and passing low.
ones.
Mixer:
combines
signals.
Noise:
a random
signal that
sounds like a "hiss."
Odyssey:
the
ultimate
musical
trip.
Phase:
the relationship
of one
waveform
to
another.
sine
waves
sine waves
in
phase.
out
of phase.
---~
---·
~ e r
~'--"-'
Phase-synchronization:
using
one oscillator to
control
the
phase of another oscillator
of
different pitch.
Pitch bend:
control
of the
frequency of a note while
it's being played.
Portamento:
a glissando, or
sliding between notes.
Resonance:"wow"
control. In
electronic terms,
a control
that
amplifies
a narrow band of
·
overtones.
Sample
&
hold:
produces
a
series
of steps, which can
control
pitch, volume,
or
brilliance.
Triggers itself automatically.
17 2
Sub-audio range (Low frequency):
pitches
that are below
what
your
ear can hear as
a tone.
Trigger:
an electronic
impulse
put out by
a
keyboard or
low
frequency
oscillator
that starts
the
envelope generator.
Voltage control:
on a synthesizer,
it
means substituting an
electrical
signal for manual control of
pitch,
brilliance,
volume, and
attack
&
decay.
Waveform:
tone. Different shapes
of
waveforms have different
timbre
:
Square:
n._ru-u
sounds hollow, reedy.
Pulse:
fL....n_fL_j
sounds thin, nasal.
Sawtooth:
~
sounds rich, full, brassy
Sine:
~
sounds smooth, round, pure.
Ring modulator:
produces
a single complex
output signal
which
contains
all the
sums
and
differences of the two inputs.
Learn to take
yourself on
the ultimate
musical trip!
...
"I
j
dys
Electronic Music Synthesizer
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