Rchr
J-GLOBAL ID：202001006298609279   Update date: Feb. 01, 2024

Okamoto Takuma

オカモト タクマ | Okamoto Takuma
Affiliation and department：
National Institute of Information and Communications Technology Universal Communication Research Institute

About National Institute of Information and Communications Technology Universal Communication Research Institute


Job title： Senior Researcher
Homepage URL  (1)： https://www.okamotocamera.com
Research keywords  (2)： Speech synthesis ,  Acoustic signal processing
Research theme for competitive and other funds  (5)：
  • 2022 - 2025 Spoken Language Acquisition Agent with Fluent Intonation
  • 2018 - 2021 アクティブマルチスポット音空間再生システムの開発
  • 2015 - 2018 Development of multilingual-multizone generation system
  • 2013 - 2015 Improvement for simple summation based sound spot system
  • 2007 - 2008 包囲型マイクロホンアレイを用いた音情報の解析と抽出
Papers (51)：
  • T. Okamoto, K. Matsubara, T. Toda, Y. Shiga, H. Kawai. Neural speech-rate conversion with multispeaker WaveNet vocoder. Speech Communication. 2022. 138. 1-12
  • K. Matsubara, T. Okamoto, R. Takashima, T. Takiguchi, T. Toda, H. Kawai. Comparison of real-time multi-speaker neural vocoders on CPUs. Acoustical Science and Technology. 2022. 43. 2. 121-124
  • T. Tanaka, R. Komatsu, T. Okamoto, T. shinozaki. Pronunciation adaptive self speaking agent using WaveGrad. The 2nd Workshop on Self-supervised Learning for Audio and Speech Processing (AAAI SAS 2022). 2022
  • R. Komatsu, S. Gao, W. Hou, M. Zhang, T. Tanaka, K. Toyoda, Y. Kimura, K. Hino, Y. Iwamoto, K. Mori, et al. Automatic spoken language acquisition based on observation and dialogue. IEEE Journal of Selected Topics in Signal Processing. 2022
  • T. Okamoto, T. Toda, H. Kawai. Multi-Stream HiFi-GAN with data-driven waveform decomposition. 2021 IEEE Automatic Speech Recognition and Understanding Workshop (ASRU). 2021. 610-617
ｍore...
MISC (57)：
  • T. Okamoto. Neural network-based speech waveform generative models. Journal of Acoustical Society of Japan. 2022. 78. 6. 328-337
  • D. Xin, S. Takamichi, T. Okamoto, H. Kawai, H. Saruwatari. Speaking rate control by HiFi-GAN using feature interpolation. 2022. 2022-SLP-140. 32. 1-6
  • 松原圭亮, 岡本拓磨, 高島遼一, 滝口哲也, 戸田智基, 河井恒. Period-HiFi-GAN: 基本周波数を制御可能な高速ニューラルボコーダ. 日本音響学会2022年春季研究発表会講演論文集. 2022. 901-904
  • 岡本拓磨, 戸田智基, 河井恒. 最尤推定型継続長モデルを用いた話速変換ニューラルTTS. 日本音響学会2022年春季研究発表会講演論文集. 2022. 1021-1024
  • 岡本拓磨. 複数バッフル型円形アレイを用いた多重拡散を考慮した音場制御. 日本音響学会2022年春季研究発表会講演論文集. 2022. 215-218
ｍore...
Books (6)：
  • Speech-to-speech translation
    Springer 2020 ISBN:9789811505942
  • 音響学入門ペディア
    コロナ社 2017 ISBN:9784339008951
  • 音響学入門ペディア
    コロナ社 2017 ISBN:9784339008951
  • Principles and applications of spatial hearing
    World Scientific 2011 ISBN:9789814313872
  • Principles and applications of spatial hearing
    World Scientific 2011 ISBN:9789814313872
ｍore...
Lectures and oral presentations  (4)：
  • Toward the realization of automatic spoken language acquisition mechanism for human-symbiotic robots
    (APSIPA ASC 2021 2021)
  • 系列変換でできる音声認識・音声合成+∞ -実装 is all we need-
    (日本音響学会第22回サマーセミナー「音響学の基礎と最近のトピックス」 2021)
  • Puredataによるサウンドプログラミングの紹介およびリアルタイムデモ
    (日本音響学会第14回サマーセミナー「音響学の基礎と最近のトピックス」 2012)
  • Over 100 channels sound field recording and reproduction systems and their applications
    (Centre for Noise and Viblation Control Seminar 2012)
Education (3)：
  • 2006 - 2009 Tohoku University Graduate School of Information Sciences Department of System Information Sciences, Doctor's Program
  • 2004 - 2006 Tohoku University Graduate School of Information Sciences Department of System Information Sciences, Master's Program
  • 2000 - 2004 Tohoku University Faculty of Engineering
Professional career (1)：
  • Ph.D. (Tohoku University)
Work history (6)：
  • 2020/07 - 現在 National Institute of Information and Communications Technology Senior Researcher
  • 2012/04 - 2020/06 National Institute of Information and Communications Technology Researcher
  • 2009/07 - 2012/03 Tohoku University Graduate School of Engineering COE Fellow
  • 2009/04 - 2009/06 Tohoku University Research Institute of Electrical Communication Post-doctor research fellow
  • 2007/11 - 2009/03 Japan Society for the Promotion of Science Research fellow (DC2)
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Committee career (13)：
  • 2021/04 - 現在 Kansai Chapter, Acoustical Society of Japan Secretary
  • 2013/11 - 現在 Acoustical Society of Japan Publicity and Computerization Committee
  • 2021/07 - 2023/05 Acoustical Society of Japan Science Committee
  • 2021/11 - 2022/03 Acoustical Society of Japan Organizing Committee of 2022 Spring Meeting
  • 2021/07 - 2022/03 Acoustical Society of Japan Organizing Committee of 2021 Autumn Meeting
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Awards (3)：
  • 2022/03 - Acoustical Society of Japan 9th Society Activity Contribution Award
  • 2018/03 - Acoustical Society of Japan 57th Sato Prize Paper Award
  • 2012/09 - Acoustical Society of Japan 32nd Awaya Prize
Association Membership(s) (3)：
IEEE ,  Audio Engineering Society ,  Acousical Society of Japan
※ Researcher’s information displayed in J-GLOBAL is based on the information registered in researchmap. For details, see here.

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