Presentation 2016-12-20
[Poster Presentation] Improvement of accent sandhi rules based on accent dictionary for Japanese text-to-speech systems
Hiroto Aoyama, Takashi Nose, Akinori Ito,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In order to synthesize more natural speech in Japanese text-to-speech systems, we improved accent sandhi rules. Conventional accent sandhi rules were developed by Sagisaka et al. and they are widely used. However, since there are no rules related to numerals and counter words, estimation accuracy of accent type for accent phrases including numerals and counter words is still not sufficient. In this paper, we tried to comprehensively improve the accent sandhi rules as well as those related to numerals and counter words, with reference to accent rules at word combination defined in the accent dictionaries. In addition, accent estimation experiments were conducted using the conventional rules and the improved rules, and effectiveness of the improved rules was evaluated. The experimental results showed that correct answer rate of the estimation by the improved rules was higher than that by the conventional rules, and improvement of accuracy was confirmed. Especially, the accent estimation using newly added rules on numerals and counter words showed a larger improvement.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Text-to-speech / Accent sandhi rules / Numerals / Counter words / Accent dictionary
Paper # SP2016-54
Date of Issue 2016-12-13 (SP)

Conference Information
Committee SP / IPSJ-SLP / NLC / IPSJ-NL
Conference Date 2016/12/20(3days)
Place (in Japanese) (See Japanese page)
Place (in English) NTT Musashino R&D
Topics (in Japanese) (See Japanese page)
Topics (in English) The 18th Spoken Language Symposium & The Third Natural Language Processing Symposium
Chair Kazunori Mano(Shibaura Inst. of Tech.) / Nobuaki Minematsu(Univ. Tokyo) / Hiroshi Kanayama(IBM) / Kentaro Inui(Tohoku Univ.)
Vice Chair Hiroki Mori(Utsunomiya Univ.) / / Makoto Ichise(NTT DoCoMo) / Takeshi Sakaki(Univ. of Tokyo/Hottolink)
Secretary Hiroki Mori(Kobe Univ.) / (Shizuoka Univ.) / Makoto Ichise(Kyoyo Univ.) / Takeshi Sakaki(Toshiba) / (Tokyo Institute of Technology)
Assistant Taichi Asami(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / / Ryuichiro Higashinaka(NTT) / Mitsuo Yoshida(Toyohashi Univ. of Tech.)

Paper Information
Registration To Technical Committee on Speech / Special Interest Group on Spoken Language Processing / Technical Committee on Natural Language Understanding and Models of Communication / Special Interest Group on Natural Language
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Improvement of accent sandhi rules based on accent dictionary for Japanese text-to-speech systems
Sub Title (in English)
Keyword(1) Text-to-speech
Keyword(2) Accent sandhi rules
Keyword(3) Numerals
Keyword(4) Counter words
Keyword(5) Accent dictionary
1st Author's Name Hiroto Aoyama
1st Author's Affiliation Tohoku University(Tohoku Univ.)
2nd Author's Name Takashi Nose
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Akinori Ito
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2016-12-20
Paper # SP2016-54
Volume (vol) vol.116
Number (no) SP-378
Page pp.pp.31-36(SP),
#Pages 6
Date of Issue 2016-12-13 (SP)