Detecting determinism in speech phonemes

Author

Liu, Xiaolin ; Povinelli, Richard J. ; Johnson, Michael T.

Author_Institution

Dept. of Electr. & Comput. Eng., Marquette Univ., Milwaukee, WI, USA

fYear

2002

fDate

13-16 Oct. 2002

Firstpage

41

Lastpage

46

Abstract

This paper presents a discriminating approach to detecting the existence of underlying determinism in speech phonemes using the surrogate data method. The discrimination is made using a statistical measurement of neighboring trajectory directions. This approach is experimentally verified with both deterministic and stochastic time series and then applied to speech phonemes from the TIMIT database. The results show that vowels present some degree of determinism, while no evidence is observed showing that determinism exists with either voiced or unvoiced fricatives.

Keywords

speech processing; stochastic processes; time series; determinism; deterministic time series; speech phonemes; statistical measurement; stochastic time series; surrogate data method; trajectory direction measurement; Chaos; Databases; Delay; Extraterrestrial measurements; Fluid flow measurement; Nearest neighbor searches; Phase measurement; Speech analysis; Speech processing; Stochastic processes;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Signal Processing Workshop, 2002 and the 2nd Signal Processing Education Workshop. Proceedings of 2002 IEEE 10th

Print_ISBN

0-7803-8116-5

Type

conf

DOI

10.1109/DSPWS.2002.1231073

Filename

1231073