7th International Conference on Spoken Language Processing

September 16-20, 2002
Denver, Colorado, USA

Tone Recognition in Thai Continuous Speech Based on Coarticulaion, Intonation and Stress Effects

Nuttakorn Thubthong, Boonserm Kijsirikul, Sudaporn Luksaneeyanawin

Chulalongkorn University, Thailand

Tone recognition is a critical component for speech recognition in a tone language. One of the main problems of tone recognition in continuous speech is that several interacting factors affect F0 realization of tones. In this paper, we focus on the coarticulatory, intonation, and stress effects. These effects are compensated by the tone information of neighboring syllables, the adjustment of F0 heights and the stress acoustic features, respectively. The experiments, which compare all tone features, were conducted by feedforward neural networks. The highest recognition rates are improved from 84.07% to 93.60% and 82.48% to 92.67% for Thai proper name and Thai animal story corpora, respectively.

Full Paper

Bibliographic reference.  Thubthong, Nuttakorn / Kijsirikul, Boonserm / Luksaneeyanawin, Sudaporn (2002): "Tone recognition in Thai continuous speech based on coarticulaion, intonation and stress effects", In ICSLP-2002, 1169-1172.