International Symposium on Tonal Aspects of Languages
With Emphasis on Tone Languages

Beijing, China
March 28-31, 2004

Robust Acoustic Modeling of Contextual Tonal F0 Variations on the Basis of Tone Nucleus Framework

Jin-Song Zhang (1), Keikichi Hirose (2), Satoshi Nakamura (2)

(1) ATR Spoken Language Translation Research Laboratories, Kyoto, Japan
(2) Dept. of Frontier Informatics, School of Frontier Sciences, University of Tokyo, Japan

This paper presents our tone nucleus based framework to model the complex variations in sentential F0 contours to build robust tonal acoustic models. By focusing on tone nuclei, the approach can get rid of the influence of aritculatory transition loci on tonal modeling. Anchoringbased Tone nucleus normalization improves the discriminability among the tones. Hypo- and Hyper- intonation model is to account for the interplay of tone coarticulation and higher level prosodic effects. The whole approach achieved significant higher performance of tone recognition than the conventional method.

Full Paper

Bibliographic reference.  Zhang, Jin-Song / Hirose, Keikichi / Nakamura, Satoshi (2004): "Robust acoustic modeling of contextual tonal F0 variations on the basis of tone nucleus framework", In TAL-2004, 239-242.