Profile
  • Name: Kazuhiro Nakamura
  • Birth Date: September 21, 1982
  • Birth Place: Shizuoka, Japan
  • Hobby: volleyball
Contact Information
  • Address: Department of Scientific and Engineering Simulation, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya, 466-8555 Japan
  • TEL/FAX: 81-52-735-7552/5840
  • E-Mail: nkazu@sp.nitech.ac.jp
Biography
  • Apr. 2014 - Present : Techno-Speech, Inc., Permanent employee
  • Apr. 2011 - Dec. 2014 : Nagoya Institute of Technology, Department of Scientific and Engineering Simulation, Ph.D student
  • Apr. 2007 - Feb. 2014 : Brother Industries, LTD., Permanent employee (April 2011 -- February 2014 LOA)
  • 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
Publications

Journal Paper

  • Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Integration of spectral feature extraction and modeling for HMM-based speech synthesis,''
    IEICE TRANSACTIONS on Information & Systems, vol.E97-D, no.6, pp.1438-1448, Jun. 2014.
  • Kazuhiro Nakamura, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Hidden Markov Model-Based English Singing Voice Synthesis,''
    IEICE TRANSACTIONS on Information & Systems, vol.J97-D, no.10, pp.1572-1581, Oct. 2014.

International Conference

  • Kazuhiro Nakamura, Shinji Takaki, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Fast and high-quality singing voice synthesis system based on convolutional neural networks,''
    Proc. of 2020 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2020), pp. 7239-7243, Barcelona, Spain, May 4-8, 2020.
  • Keiichiro Oura, Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Deep neural network based real-time speech vocoder with periodic and aperiodic inputs,''
    Proc. of 10th ISCA Speech Synthesis Workshop (SSW10), pp. 13-18, Vienne, Austria, September 20-22, 2019.
  • Yukiya Hono, Shumma Murata, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Recent development of the DNN-based singing voice synthesis system -- Sinsy,''
    Proc. of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference 2018 (APSIPA ASC 2018), pp. 1003-1009, Honolulu, Hawaii, November 12-15, 2018.
  • Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``A mel-cepstral analysis technique restoring high frequency components from low-sampling-rate speech,''
    INTERSPEECH 2014, pp.2494-2498, Singapore, Sept. 2014.
  • Kazuhiro Nakamura, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``HMM-based singing voice synthesis and its application to Japanese and English,''
    2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), pp.265-269, Florence, Italy, May 2014.
  • Kanako Shirota, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Integration of speaker and pitch adaptive training for HMM-based singing voice synthesis,''
    2014 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2014), pp.2578-2582, Florence, Italy, May 2014.
  • Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, Keiichi Tokuda,
    ``Integration of acoustic modeling and mel-cepstral analysis for HMM-based speech synthesis,''
    2013 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2013), pp.7883-7887, Vancouver, Canada, May 2013.
  • Yoshihiko Nankaku, Kazuhiro Nakamura, Heiga Zen, Keiichi Tokuda,
    ``Acoustic modeling with contextual additive structure for HMM-based speech recognition,''
    2008 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2008), pp.4469-4472, Las Vegas, Nevada, U.S.A., March 30-Apr. 4, 2008.
  • Kazuhiro Nakamura, Heiga Zen, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Acoustic modeling with contextual additive structure for hidden Markov model-based speech recognition,''
    Proc. of The 4th Joint Meeting of ASA/ASJ, Honolulu, Hawai, Nov. 28-Dec. 2, 2006 (in J. Acoust. Soc. Am., vol.120, no.5, Part.2, p.3042, Nov. 2006) (abstract paper).

Technical Report

  • Keiichiro Oura, Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, Keiichi Tokuda,
    ``周期・非周期信号を用いたDNNに基づくリアルタイム音声ボコーダ,''
    IPSJ SIG Technical Report, vol. 2019-SLP-127, no. 34, pp. 1-6, Kyoto, June 22-23, 2019..

Domestic Conference

  • Kazuhiro Nakamura, Shinji Takaki, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, Keiichi Tokuda,
    ``Computational complexity reduction method for CNN-based singing voice synthesis,''
    ASJ2019 autumn, pp.939-940, Shiga, Sep. 2019.
  • Keiichiro Oura, Shinji Takaki, Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, Keiichi Tokuda,
    ``Generative adversarial network based real-time speech vocoder with periodic/aperiodic inputs,''
    ASJ2019 autumn, pp.997-998, Shiga, Sep. 2019.
  • Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``CNN-basd speech parameter generation for singing voice synthesis,''
    ASJ2019 spring, 2-10-4, pp.1033-1034, Tokyo, Mar. 2019.
  • Keiichiro Oura, Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Deep neural network based speech vocoder with periodic/aperiodic inputs,''
    ASJ2019 spring, 3-10-1, pp.1049-1052, Mar. 2019. Awaya Prize Young Researcher Award
  • Yukiya Hono, Shumma Murata, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``A DNN-based Singing Voice Synthesis System ? Sinsy,''
    ASJ2018 autumn, 1-4-7, pp.1099-1102, Sep. 2018. Student Award
  • Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``A mel-cepstral analysis technique restoring missing high-frequency components from low-sampling-rate speech,''
    ASJ2014 spring, vol.I, 3-6-9, pp.339-340, Mar. 2014. Student Award
  • Takashi Aritake, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Comparing spectrum representation methods related to LSPs for HMM-based speech synthesis,''
    ASJ2014 spring, vol.I, 3-6-8, pp.337-338, Mar. 2014.
  • Yusuke Sato, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Evaluation of a cross-lingual speaker adaptation technique using joint-eigenvoices with a perceptual characteristic space,''
    ASJ2014 spring, vol.I, 3-6-2, pp.325-326, Mar. 2014.
  • Koji Mushika, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``A robust acoustic modeling technique against training data errors in HMM-based singing voice synthesis,''
    ASJ2014 spring, vol.I, 3-6-7, pp.335-336, Mar. 2014.
  • Kazuhiro Nakamura, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``An HMM-based Approach for English Singing Voice Synthesis,''
    ASJ2013 autumn, vol.I, 2-7-7, pp.299-300, Sept. 2013.
  • Kazuhiro Nakamura, Kei Hashimoto, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Integration of acoustic modeling and mel-cepstral analysis for HMM-based speech synthesis,''
    ASJ2013 spring, vol.I, 1-7-11, pp.289-290, Mar. 2013.
  • Shoto Kitamura, Kazuhiro Nakamura, Kei Hashimoto, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Automatic correction of tuneless singing using pitch adaptive training for HMM-based singing voice synthesis,''
    ASJ2013 spring, vol.I, 2-7-10, pp.337-338, Mar. 2013.
  • Kanako Shirota, Kazuhiro Nakamura, Keiichiro Oura, Yoshihiko Nankaku, and Keiichi Tokuda,
    ``Integration of speaker and pitch adaptive training techniques for HMM-based singing voice synthesis,''
    ASJ2013 spring, vol.I, 2-7-11, pp.339-340, Mar. 2013.
  • Kazuhiro Nakamura, Zen Heiga, Yoshihiko Nankaku, Akinobu Lee, and Keiichi Tokuda,
    ``Acoustic Modeling with Contextual Additive Structure for HMM-based Context Clustering,''
    ASJ2007 spring, vol.I, 1-P-13, pp.149-150, Mar. 2007. Poster Award
Projects
  • Sinsy
    HMM-based singing voice synthesis system (Development member and main maintainer)
    Apr. 2011 -
  • hts_engine_API
    Spech synthesis engine for HTS (Development member)
    Sep. 2006 - Mar. 2007
  • GalateaTalk
    Japanese TTS system (Development member)
    Apr. 2005 - Mar. 2007
Link