Pre-processing of fundamental frequency contours of speech for automatic parameter extraction

Author

Fujisaki, Hiroya ; Narusawa, Shuichi ; Maruno, Masako

Author_Institution

Dept. of Appl. Electron., Sci. Univ. of Tokyo, Japan

Volume

2

fYear

2000

fDate

2000

Firstpage

722

Abstract

While it is quite straightforward to obtain a natural F₀ contour from a set of parameters of a model for F₀ contour generation, the inverse problem cannot be solved analytically. This paper presents a method for pre-processing a measured F₀ contour to obtain its approximation consisting of third-order polynomial segments that are continuous and differentiable everywhere. It is shown that the proposed method allows one to obtain first-order approximations to the parameters of accent commands for about 90% of all the accent commands

Keywords

feature extraction; inverse problems; polynomial approximation; speech processing; speech recognition; F₀ contour; Japanese; accent commands; automatic parameter extraction; first-order approximations; fundamental frequency contours; inverse problem; pre-processing; speech; third-order polynomial segments; Equations; Frequency; Inverse problems; Natural languages; Parameter extraction; Polynomials; Speech analysis; Speech synthesis; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-5747-7

Type

conf

DOI

10.1109/ICOSP.2000.891612

Filename

891612