TY - GEN
T1 - Chaotic Dynamics and Simulation of Japanese Vowel Sounds
AU - Small, Michael
AU - Tse, Chi Kong
AU - Ikeguchi, Tohru
PY - 2005/9
Y1 - 2005/9
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33749055162&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33749055162&origin=recordpage
U2 - 10.1109/ECCTD.2005.1523020
DO - 10.1109/ECCTD.2005.1523020
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 0780390660
SN - 9780780390669
VL - 2
T3 - Proceedings of the 2005 European Conference on Circuit Theory and Design
BT - Proceedings of the 2005 European Conference on Circuit Theory and Design
T2 - 2005 European Conference on Circuit Theory and Design
Y2 - 28 August 2005 through 2 September 2005
ER -