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Journal Article

Digital Synthesis of Complex Spectra by Means of Multiplication of Nonlinear Distorted Sine Waves

Authors: Arfib, Daniel

Journal of the Audio Engineering Society · Volume 27 · Issue 10 · pp. 757–768 · October 1979

Abstract

A technique for the synthesis of complex dynamic spectra is described. The first step in the synthesis method is to distort sine waves with nonlinear transfer functions. The resulting specra depend upon the input amplitudes and the nature of the distortions. By multiplying one such distorted source by another one obtains a spectrum that is the convolution of the spectra of the distorted sine waves. By varying the amplitudes of the input sine waves one can produce complex spectral evolutions. Harmonic as well as inharmonic spectra can be produced, and control over the formant structure is provided. With one distorted and one pure wave, results similar to those of Chowing;s frequency-modulated technique are produced. With several distorted signals very complex spectral evolutions are possible. Various implementations will be discussed using a computer or special-purpose digital device.

Details

Publication
Journal of the Audio Engineering Society
Volume
27
Issue
10
Pages
757–768
Publication date
October 6, 1979
Affiliation
C.N.R.S., Laboratoire deMdcanique et d'Acoustique, Marseille, France (See document for exact affiliation information.)
Type
Journal Article