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Tokuda & Lee Laboratory
Tokuda & Lee Laboratory/Oura Keiichiro
Tokuda & Lee Laboratory/Oura Keiichiro/research (private page)

Name †

• First name
  Keiichiro
• Family name
  Oura

Contact infomation †

• Address
  Department of Computer Science and Engineering, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya, 466-8555 Japan
• TEL/FAX
  81-52-735-7549/5840
• E-Mail
  uratec@sp.nitech.ac.jp

Biography †

• Educations
  • Apr. 2007 - Present
    Nagoya Institute of Technology Department of Computer Science and Engineering (Ph.D.)
  • Apr. 2005 - Mar. 2007
    Nagoya Institute of Technology Department of Computer Science and Engineering (Master)
  • Apr. 2001 - Mar. 2005
    Nagoya Institute of Technology Department of Computer Science
• Professional Experiences
  • Dec. 2009 - Present
    SCOPE, Researcher
  • Mar. 2008 - Nov. 2009
    FP7 EMIME project, Researcher
  • Sep. 2007 - Dec. 2007
    ATR Spoken Language Communication Research Laboratories, Intern Researcher
• Awards
  • Feb. 2010
    Student Award at Nagoya Institute of Technology
  • Dec. 2008
    Best Student Paper Award at ISCSLP2008

Software †

• HTS
  HMM-based speech synthesis system (Design and Development, Main Maintainer).

• hts_engine API
  Speech synthesis engine for HTS (Design and Development, Main Maintainer).

• Open JTalk
  Japanese TTS system (Design and Development, Main Maintainer).

• SPTK
  Speech signal processing toolkit (Main Maintainer).

• FLITE on WINDOWS MOBILE 5
  CMU's small footprint English TTS FLITE has been ported to Windows Mobile 5 environment (Design and Development, Main Maintainer).

Publications †

• IEEE
  Thousands of Voices for HMM-based Speech Synthesis – Analysis and Application of TTS Systems Built on Various ASR Corpora,
  Junichi Yamagishi, Bela Usabaev, Simon King, Oliver Watts, John Dines, Jilei Tian, Yong Guan, Rile Hu, Keiichiro Oura, Yi-Jian Wu, Keiichi Tokuda, Reima Karhila, Mikko Kurimo,
  IEEE (to be published).

• ICASSP2010 in Dallas, USA (May 14-19 2010)
  Unsupervised Cross-lingual Speaker Adaptation for HMM-based Speech Synthesis System,
  Keiichiro Oura, Keiichi Tokuda, Junichi Yamagishi, Mirjam Wester, and Simon King,
  ICASSP2010, 2010-03 (to be published).

• ASJ2010 spring in Tokyo, Japan (May 08-10 2010)
  summary(J) paper(J) slide(J)
  Cross-lingual speaker adaptation considering differences between language-dependent average voices,
  Xianglin Peng, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
  ASJ2010 spring, vol.I, 1-7-21, pp.325-326, 2010-03.

• ASJ2010 spring in Tokyo, Japan (May 08-10 2010)
  summary(J) paper(J) poster(J)
  Subjective evaluations of speech rate control methods for HMM-based speech synthesis,
  Makoto Yamada, Nobuyuki Nishizawa, Tuneo Kato, Keiichiro Oura, and Keiichi Tokuda,
  ASJ2010 spring, vol.I, 1-P-2, pp.405-406, 2010-03.

• ASJ2010 spring in Tokyo, Japan (May 08-10 2010)
  summary(J) paper(J) slide(J)
  Japanese Text-to-Speech Synthesis System: Open JTalk,
  Keiichiro Oura, Shinji Sako, and Keiichi Tokuda,
  ASJ2010 spring, vol.I, 2-7-6, pp.343-344, 2010-03.

• ASJ2010 spring in Tokyo, Japan (May 08-10 2010)
  summary(J) paper(J) slide(J)
  HMM-based singing voice synthesis system trained by using pitch-shifted pseudo data,
  Ayami Mase, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
  ASJ2010 spring, vol.I, 2-7-7, pp.345-346, 2010-03.

• ASJ2010 spring in Tokyo, Japan (May 08-10 2010)
  summary(J) paper(J) slide(J)
  Reducing computational cost of training for HMM-based singing voice synthesis using note boundaries,
  Satoru Muto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
  ASJ2010 spring, vol.I, 2-7-8, pp.347-348, 2010-03.

• IEICE (May 01 2010)
  paper
  A Covariance-Tying Technique for HMM-based Speech Synthesis,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  IEICE, vol.E93-D, no.3, pp.595-601, 2010-03.

• Human Interface (Feb 01 2010)
  Construction of speech synthesis systems using HTS,
  Keiichiro Oura, Heiga Zen, Shinji Sako, and Keiichi Tokuda,
  Human Interface, 2010-02 (to be published).

• SLP2009 in Tokyo, Japan (Dec. 21-22 2009)
  paper slide
  Unsupervised Speaker Adaptation for Speech-to-Speech Translation System,
  Keiichiro Oura, Junichi Yamagishi, Mirjam Wester, Simon King, and Keiichi Tokuda,
  Technical Report of IEICE, vol.109, no.356, pp.13-18, 2009-12.

• GOKISO (Nov. 11 2009)
  discussion(J)
  Round-table discussion 'Nitech future based on inauguration of business',
  Koichiro Kawashima, Tatsuya Tomioka, Osamu Terakura, Tomohiro Hirano, Yohei Yamaguchi, Taizo Umezaki, Keiichiro Oura, and Yukio Niiri,
  GOKISO, no.432 pp.12-23, 2009-11.

• APSIPA2009 in Sapporo, Japan (Oct. 04-07 2009)
  paper slide
  Recent development of the HMM-based speech synthesis system (HTS),
  Heiga Zen, Keiichiro Oura, Takashi Nose, Junichi Yamagishi, Shinji Sako, Tomoki Toda, Takashi Masuko, Alan W. Black, and Keiichi Tokuda,
  APSIPA2009, pp.121-130, 2009-10.

• ASJ2009 autumn in Koriyama, Japan (Sep. 15-17 2009)
  abst(J) paper poster
  Unsupervised English-to-Japanese speaker adaptation for HMM-based speech synthesis,
  Keiichiro Oura, Junichi Yamagishi, Simon King, Mirjam Wester, and Keiichi Tokuda,
  ASJ2009 autumn, vol.I, 3-P-18, pp.401-402, 2009-09.

• The first HTS meeting in Brighton, UK (Sep. 06 2009)
  slide
  Recent development of the HMM-based speech synthesis system (HTS),
  HeigaZen, Keiichiro Oura, Takashi Nose, Junichi Yamagishi, Shinji Sako, Tomoki Toda, Takashi Masuko, Alan W. Black, Keiichi Tokuda,
  The first HTS meeting, 2009-09.

• ICSLP2009 in Brighton, UK (Sep. 06-10 2009)
  paper poster
  Tying covariance matrices to reduce the footprint of HMM-based speech synthesis systems,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  ICSLP2009, pp.1759-1761, 2009-09.

• ICSLP2009 in Brighton, UK (Sep. 06-10 2009)
  paper
  Thousands of Voices for HMM-based Speech Synthesis,
  Junichi Yamagishi, Bela Usabaev, Simon King, Oliver Watts, John Dines, Jilei Tian, Rile Hu, Keiichiro Oura, Keiichi Tokuda, Reima Karhila, and Mikko Kurimo,
  ICSLP2009, pp.420-423, 2009-09.

• Blizzard Challenge 2009 in Edinburgh, UK (Sep. 04 2009)
  paper slide
  Overview of NIT HMM-based speech synthesis system for Blizzard Challenge 2009,
  Keiichiro Oura, Yi-Jian Wu, and Keiichi Tokuda,
  Blizzard Challenge 2009, 2009-09.

• ISCSLP2008 in Kunming, China (Dec. 16-19 2008)
  paper slide award
  Simultaneous Acoustic, Prosodic, and Phrasing Model Training for TTS Conversion Systems,
  Keiichiro Oura, Yoshihiko Nankaku, Tomoki Toda, Keiichi Tokuda, Rannierry Maia, Shinsuke Sakai, and Satoshi Nakamura,
  ISCSLP2008, SPE1.1, pp.1-4, 2008-12.

• SLP2008 in Tokyo, Japan (Dec. 09-10 2008)
  paper(J) poster(J)
  Tying covariance for HMM-based speech synthesis,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, Keiichi Tokuda,
  Technical Report of IEICE, vol.108, no.337, pp.215-220, 2008-12.

• IEICE (Nov. 01 2008)
  paper
  A Fully Consistent Hidden Semi-Markov Model-Based Speech Recognition System,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  IEICE, vol.E91-D, no.11, pp.2693-2700, 2008-11.

• ASJ2008 autumn in Hakata, Japan (Sep. 10-12 2008)
  summary(J) paper(J) poster(J)
  Tying variance for HMM-based speech synthesis,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  ASJ2008 autumn, vol.I, 2-P-29, pp.421-422, 2008-09.

• ASJ2008 spring in Chiba, Japan (Mar. 17-19 2008)
  summary(J) paper(J) slide(J)
  Simultaneous prosody and acoustic model training for english speech synthesis,
  Keiichiro Oura, Yoshihiro Nankaku, Tomoki Toda, Keiichi Tokuda, Ranniery Maia, Shinsuke Sakai, and Satoshi Nakamura,
  ASJ2008 spring, vol.I, 2-11-1, pp.335-336, 2008-03.

• SLP2007 in Kyoto, Japan (Dec. 20-21 2007)
  paper slide(J)
  Recent developments of the HMM-based speech synthesis system (HTS),
  Heiga Zen, Keiichiro Oura, Takashi Nose, Junichi Yamagishi, Shinji Sako, Tomoki Toda, Takashi Masuko, Alan W. Black, and Keiichi Tokuda,
  Technical Report of IEICE, vol.2007, no.129, pp.301-306, 2007-12.

• ASJ2007 autumn in Kofu, Japan (Sep. 19-21 2007)
  summary(J) paper(J) slide(J)
  Postfiltering for HMM-based speech synthesis using Mel-LSPs,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  ASJ2007 autumn, vol.I, 3-4-9, pp.367-368, 2007-09.

• Master's thesis (Feb. 08 2007)
  abst(J) paper(J) slide(J)
  HSMM Based Speech Recognition Using WFST,
  Keiichiro Oura, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  Master's thesis (Nagoya Institute of Technology), 2007-02.

• ICASSP2006 in Toulouse, France (May 14-19 2006)
  paper slide
  Hidden Semi-Markov Model Based Speech Recognition System Using Weighted Finite-State Transducer,
  Keiichiro Oura, Heiga Zen, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  ICASSP2006, vol.I, pp.33-36, 2006-05.

• ASJ2005 autumn in Sendai, Japan (Sep. 27-29 2005)
  summary(J) paper(J) slide(J)
  HSMM Based Speech Recognition Using WFST,
  Keiichiro Oura, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
  ASJ2005 autumn, vol.I, 2-7-15, pp.87-88, 2005-09.

• Graduation thesis (Feb. 15 2005)
  abst(J) paper(J) slide(J)
  CVD-HSMM Based Speech Recognition System Using WFST,
  Keiichiro Oura, Keiichi Tokuda, and Tadashi Kitamura,
  Graduation thesis (Nagoya Institute of Technology), 2007-02.