Third International Conference on Spoken Language Processing (ICSLP 94)
This paper presents a practical method for controlling prosodic information in Japanese text-to-speech conversion system based on Lexical Discourse Grammar(LDG). LDG is a method we have developed for providing a cheap and reliable parsing and global structure analyzing algorithm of Japanese long sentences with lexical information. LDG can presume the inter-clausal dependency within Japanese sentences prior to syntactic and semantic analyses by utilizing the differences of the encapsulating powers of each Japanese function words, such as conjunctive particles (postpositions) located at the end of each clause. Therefore, LDG can also produce prosodic information control parameters, especially the location and length of pauses, which are influenced by the sentence structure. We confirmed the correlation between the pause length inserted after the clause with a conjunctive particle and the particle's encapsulating power which is classified into 6 levels by analyzing the speech utterances of a male announcer.
Bibliographic reference. Doi, Shinichi / Iwata, Kazuhiko / Muraki, Kazunori / Mitome, Yukio (1994): "Pause control in Japanese text-to-speech conversion system with lexical discourse grammar", In ICSLP-1994, 743-746.