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Digital Sound Synthesis for Multimedia Audio

  1. Eduardo R. Miranda

Published Online: 16 MAR 2009

DOI: 10.1002/9780470050118.ecse075

Wiley Encyclopedia of Computer Science and Engineering

Wiley Encyclopedia of Computer Science and Engineering

How to Cite

Miranda, E. R. 2009. Digital Sound Synthesis for Multimedia Audio. Wiley Encyclopedia of Computer Science and Engineering. 948–958.

Author Information

  1. University of Plymouth, Interdisciplinary Centre for Computer Music Research, Plymouth, United Kingdom

Publication History

  1. Published Online: 16 MAR 2009

Abstract

A great variety of software and techniques for generating audio for multimedia applications have been developed. They can be grouped into two broad approaches, referred to in this article as sampling manipulation and software synthesis, respectively. This article begins with an introduction to the basics of digital representation of sound, including the notions of sampling and storage. Then, it presents the fundamentals of sound processing and analysis by means of the short-time Fourier transform method, followed by an introduction to sampling manipulation techniques. Next, it introduces the basics of frequency modulation, a powerful software synthesis technique that is relatively easy to implement and is capable of producing various musical tones and unusual sound effects.

Keywords:

  • digital audio;
  • software sound synthesis;
  • sampling manipulation;
  • frequency modulation