ABSTRACT
An analogue synthesizer is thus usually defined as one that uses voltages and currents to directly represent both audio signals and any control signals which are used to manipulate those audio signals. In fact, ‘analogue’ can also refer to any technology in which sound is created and manipulated in any way where the representation is continuous rather than discrete. Analogue computers were used before low-cost digital circuitry became widely available, and they used voltages and currents to represent numbers. They were used to solve complex problems in navigation, dynamics and mathematics.
