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Sound Synthesis and Sampling, 2nd Edition by Martin Russ

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2  Analogue synthesis

2.1  Analogue and digital

The word ‘analogue’ means that a range of values are presented in a continuous rather than a discrete way. Continuous implies making measurements all the time, and also infinite resolution – although inherent physical limitations like the grain size on photographic flim, or the noise level in an electronic circuit will prevent any real-world system from being truly continuous. Discrete means that you use individual finite sample values taken at regular intervals rather than measure all the time, with the assumption that the samples are a good representation of the original signal. Digital synthesis uses these discrete values.

This chapter describes analogue synthesis: from voltage control to musical ...

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