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Thai intonation analysis in harmonic-frequency domain
Author(s)
Kongkachandra, Rachada
Pansang, Seri
Sripramong, Thanwa
Kimpan, Chom
Date Issued
December 1, 1998
Type
Article
Abstract
The paper describes the Thai Intonation Analysis System (TIAS) for speaker-independent that achieves 90-95% word accuracy by applying two techniques, intonation flow analysis and voice identity calculation. The intonation flow analysis considers spectrograms emphasizing on their modification styles of the frequency peaks. The five styles of modification mapped to Thai tones as low, medium, falling, high, and rising respectively. However, there are some words that tones cannot be labeled correctly by the former because of speakers' amplitude, frequency, and uttering period differences. These limitations can be cured by applying the voice identity calculation that applies correlative coefficient relation to find voice identity of each compared spectrograms. The paper also reported experimental results for the task of intonation analysis with ten Thai numeral words uttered three-time repetitions by ten male speakers' readiness. In this paper, the speech waveforms are adapted from time-domain signals to harmonic-frequency domain.
Citation
IEEE Asia Pacific Conference on Circuits and Systems Proceedings, 165-168, 1998