5th International Conference on Spoken Language Processing

Sydney, Australia
November 30 - December 4, 1998

A Computational Algorithm For F0 Contour Generation In Korean Developed With Prosodically Labeled Databases Using K-ToBI System

Yong-Ju Lee, Sook-hyang Lee, Jong-Jin Kim, Hyun-Ju Ko, Young-Il Kim, Sang-Hun Kim, Jung-Cheol Lee

Spoken Language Processing Section, Electronics and Telecommunication Research Institute, Korea

This study describes an algorithm for the F0 contour generation system for Korean sentences and its evaluation results. 400 K-ToBI labeled utterances were used which were read by one male and one female announcers. F0 contour generation system uses two classification trees for prediction of K-ToBI labels for input text and 11 regression trees for prediction of F0 values for the labels. Evaluation results of the system showed 77.2% prediction accuracy for prediction of IP boundaries and 72.0% prediction accuracy for AP boundaries. Information of voicing and duration of the segments was not changed for F0 contour generation and its evaluation. Evaluation results showed 23.5Hz RMS error and 0.55 correlation coefficient in F0 generation experiment using labelling information from the original speech data.

Full Paper

Bibliographic reference.  Lee, Yong-Ju / Lee, Sook-hyang / Kim, Jong-Jin / Ko, Hyun-Ju / Kim, Young-Il / Kim, Sang-Hun / Lee, Jung-Cheol (1998): "A computational algorithm for F0 contour generation in Korean developed with prosodically labeled databases using k-toBI system", In ICSLP-1998, paper 0704.