Articulatory speech synthesis using a parametric model and a polynomial mapping technique

Author

Greenwood, A.R. ; Goodyear, C.C.

Author_Institution

Sch. of Electr. Eng. & Electron., Liverpool John Moores Univ., UK

fYear

1994

fDate

13-16 Apr 1994

Firstpage

595

Abstract

A model of the vocal tract has been developed that allows the complete area function to be expressed efficiently in terms of nine quasi-articulatory parameters. Sets of parameters obtained from magnetic resonance imaging have been used to seed diphone codebooks, which are then filled using a parameter inching technique. A least squares technique is used to obtain a polynomial approximation to the mapping from formant frequencies to synthesiser parameters. It has been found that a cubic mapping is sufficient to obtain a reasonable approximation

Keywords

approximation theory; least squares approximations; parameter estimation; polynomials; speech coding; speech synthesis; area function; articulatory speech synthesis; cubic mapping; diphone codebooks; formant frequencies; least squares technique; magnetic resonance imaging; parameter inching technique; parametric model; polynomial approximation; polynomial mapping technique; quasiarticulatory parameters; vocal tract; Attenuation; Inductors; Least squares approximation; Magnetic resonance imaging; Natural languages; Parametric statistics; Polynomials; Resistors; Sampling methods; Speech synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Speech, Image Processing and Neural Networks, 1994. Proceedings, ISSIPNN '94., 1994 International Symposium on

Print_ISBN

0-7803-1865-X

Type

conf

DOI

10.1109/SIPNN.1994.344841

Filename

344841