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2010 Fiscal Year Final Research Report

2nd language learning system without dependence on sound environment

Research Project

  • PDF
Project/Area Number 20520472
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Japanese language education
Research InstitutionKumamoto University

Principal Investigator

CHISAKI Yoshifumi  Kumamoto University, 大学院・自然科学研究科, 准教授 (50284740)

Co-Investigator(Kenkyū-buntansha) USAGAWA Tsuyoshi  熊本大学, 大学院・自然科学研究科, 教授 (30160229)
Project Period (FY) 2008 – 2010
Keywords言語学習システム / e-learning / 雑音抑圧 / 非同期信号 / 多点観測 / マイクロフォンアレー
Research Abstract

Efficiency on utterance learning of 2nd language is degraded when multiple learners exist in CALL room due to the simultaneous utterances by other learners. A purpose of the research is to improve the performance on utterance evaluation when the simultaneous utterances exist for sustainable learning. The system enhances a target learner's utterance using signals of other learner's utterances and multi channel synchronization technique based on network time protocol.

  • Research Products

    (7 results)

All 2011 2010 2009

All Presentation (7 results)

  • [Presentation] Network time protocol同期を用いた非同期多チャンネル信号の音声強調-複数妨害音が音声認識性能へ与える影響-2011

    • Author(s)
      苣木禎史, 眞島智久, 宇佐川毅
    • Organizer
      日本音響学会2011年春季研究発表会講演論文集, pp.1-4
    • Place of Presentation
      東京,早稲田大学(CD-ROM)
    • Year and Date
      20110309-20110311
  • [Presentation] Speech Enhancement Method utilizing Asynchronous Signals with Time Code over TCP/IP Network2010

    • Author(s)
      眞島智久, 苣木禎史, 宇佐川毅
    • Organizer
      Proc.Asia Pacific Signal and Information Processing Association, p.13
    • Place of Presentation
      Singapore, Biopolis(CD-ROM)
    • Year and Date
      20101214-20101217
  • [Presentation] Speech enhancement method based on spectral filtering utilizing asynchronous signals with embedded timecode over TCP/IP based network2010

    • Author(s)
      眞島智久, 苣木禎史, 宇佐川毅
    • Organizer
      Proc.TENCON2010, pp.1341-1346
    • Place of Presentation
      Fukuoka, International Convention Center
    • Year and Date
      20101121-20111124
  • [Presentation] 非同期マルチチャネル信号を用いた単語音声認識のための信号強調-NTPによるチャネル間同期法の検討-2010

    • Author(s)
      眞島智久, 苣木禎史, 宇佐川毅
    • Organizer
      電子情報通信学会技術研究報告110(285), pp.73-78
    • Place of Presentation
      福岡,九州大学
    • Year and Date
      2010-11-19
  • [Presentation] TCP/IPネットワークを介した非同期マルチチャネル信号を用いた雑音低減手法の検討-雑音推定誤差と自動音声認識への影響-2009

    • Author(s)
      眞島智久, 金佳英, 苣木禎史, 宇佐川毅
    • Organizer
      IEICE電子情報通信学会信号処理研究専門委員会第24回信号処理シンポジウム,講演論文集, pp.198-202
    • Place of Presentation
      鹿児島,鹿児島サンロイヤルホテル(CD-ROM)
    • Year and Date
      20091125-20091127
  • [Presentation] Spectral subtraction method utilizing asynchronous signals observed over TCP/IP based network2009

    • Author(s)
      Tomohisa Mashima, Kousuke Matsuo, Yoshifumi Chisaki, Tsuyoshi Usagawa
    • Organizer
      Proc.The 10th Western Pacific Acoustics Conference, pp.1-6
    • Place of Presentation
      Beijing, China, Beijing Friendship Hotel(CD-ROM)
    • Year and Date
      20090921-20090923
  • [Presentation] A spectral subtraction method using signals observed at separate computers connected by network2009

    • Author(s)
      Kousuke Matsuo, Yoshifumi Chisaki, Tsuyoshi Usagawa
    • Organizer
      Proc.Youngnam-Kyushu Joint Conference on Acoustics 2009, pp.135-138
    • Place of Presentation
      Andong, Korea, House of Korean Culture
    • Year and Date
      2009-02-07

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Published: 2012-01-26   Modified: 2016-04-21  

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