Moog THE SOURCE User Manual

section n
REFERENCES
THE ANALOG SYNTHESIZER
The part of The Source that actually produces sound is a monophonic analog synthesizer. This synthesizer is controlled
by digital devices (explained in Digital Functions on page 41), but the synthesizer itself has many points in common
with existing established models such as the Minimoog.
There are three major kinds of circuits in the sound chain of any synthesizer — monophonic or polyphonic.
These circuits are:
1. Signal Sources: The original source of sounds in the synthesizer. Signal sources are classified as
pitched or unpitched. In The Source, the pitched signal sources are two voltage-controlled oscillators.
The unpitched signal source is a noise generator.
2. Modifiers: Circuits that alter the quality of the basic sound produced by the signal sources.
The two main modifiers on The Source are the voltage-controlled filter, which produces changes
in tone color, and the voltage-controlled amplifier, which produces changes in loudness.
3. Controllers: Circuits that control other circuits. The primary controllers are the keyboard,
the contour generators, and the low-frequency oscillator.
The general relationship of these major circuits is illustrated below:
SIGNAL
SOURCE(S)
t
MODIFIER
CONTROLLER
CONTROLLER
MODIFIER
I
-I
I
I
((OTHER MODIFIERS '
OR PLAYBACK J
J
I SYSTEM) ,
I I
r i
i I
I (ANY OTHER
I CONTROLLERS) {
I I
25

Moog THE SOURCE Specifications

General

Brand	Moog
Model	THE SOURCE
Category	Synthesizer
Language	English