Articulatory control of a vocal tract model based on fractional delay waveguide filters

Author

Välimäki, Vesa ; Karjalainen, Matti ; Kuisma, Timo

Author_Institution

Acoust. Lab., Helsinki Univ. of Technol., Espoo, Finland

fYear

1994

fDate

13-16 Apr 1994

Firstpage

571

Abstract

A novel technique to implement and control an acoustic tube model of the human vocal tract is introduced. This model is an extension to the traditional Kelly-Lochbaum model, since not only the diameter of individual uniform tube sections but also their length, i.e., the positions of scattering junctions, can be continuously varied. The vocal tract model is implemented by means of FIR-type interpolation and deinterpolation that are used to locate the junctions. The authors show that in this kind of model the articulators can be presented in a natural manner enabling easy control of the model from articulatory data

Keywords

biocontrol; physiological models; speech; FIR-type interpolation; Kelly-Lochbaum model; acoustic tube model; articulatory control; articulatory data; deinterpolation; fractional delay waveguide filters; human vocal tract; scattering junctions position; uniform tube sections; vocal tract model; Acoustic scattering; Acoustic waveguides; Acoustic waves; Impedance; Interpolation; Propagation delay; Resonator filters; Sampling methods; Speech synthesis; Waveguide components;

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.1994.344847

Filename

344847