Process and device for musical and vocal dynamic sound synthesis by non- linear distortion and amplitude modulation

摘要

A process and a device for the musical and vocal dynamic sound synthesis of formants associated with a fundamental sound. To produce a formant, a wave form is generated with is the sum of several sound components of the form ##EQU1## wherein &ohgr;.sub.0 denotes the angular frequency of the fundamental sound, &ohgr;.sub.s denotes a shift of angular frequency of the formant with respect to the fundamental sound, . omega..sub.c denotes the central angular frequency of this formant, and . delta. denotes the bandwidth of the latter. The amplitude of each component is of the form: ##EQU2## The frequency or angular frequency parameters are modulated temporally in order to carry out the dynamic sound synthesis, the phase relations between formants thus being preserved.