Chaotic Dynamics and Simulation of Japanese Vowel Sounds

Michael Small, Chi Kong Tse, Tohru Ikeguchi

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

6 Citations (Scopus)

Abstract

We examine deterministic dynamics in Japanese speech vocalisation patterns. We find that a simple data driven non-parametric model may be employed to accurately and compactly describe the complex dynamic structure of the data. Moreover, we demonstrate that the data is not consistent with a monotonic nonlinear transformation of linearly filtered noise (i.e. determinism in the data cannot be adequately described by the Fourier power spectrum). We then show that for four of the five vowel sounds, the dynamics are not consistent with a noise driven nonlinear periodic orbit, and therefore the underlying dynamical system is likely to be chaotic. In the fifth case (the vowel /a/) we are unable to reject the hypothesis of a noise driven periodic orbit.
Original languageEnglish
Title of host publicationProceedings of the 2005 European Conference on Circuit Theory and Design
Volume2
DOIs
Publication statusPublished - Sept 2005
Externally publishedYes
Event2005 European Conference on Circuit Theory and Design - Cork, Ireland
Duration: 28 Aug 20052 Sept 2005

Publication series

NameProceedings of the 2005 European Conference on Circuit Theory and Design
Volume2

Conference

Conference2005 European Conference on Circuit Theory and Design
PlaceIreland
CityCork
Period28/08/052/09/05

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