Audio Processes

22 Granular Synthesis

22.1	Sound from Grains
22.1.1	Introduction
22.1.2	Granular Stream Generation
22.1.3	Lookup Table Sources
22.1.4	Parameter Relationships
22.2	Granular Synthesis Techniques
22.2.1	Fixed Parameters
22.2.2	Envelope Control
22.2.3	Random Variations
22.2.4	Parallel Streams
22.3	Developing Processes and Learning More

22.1 Sound from Grains

22.1.1 Introduction

A continuous signal is used in many types of synthesis as the basis for sound generation, such as periodic oscillators (Chapter 14) or noise generators (Chapter 18). These signals are then shaped by the application of amplitude envelopes to form finite length sonic events. For example, figure 13.8 (p.407) has an oscillator that produces a continuous signal, with an envelope multiplied by the ...