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他言語・多目的対応のCALLシステムの開発

Research Project

Project/Area Number 14F04006
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Learning support system
Research InstitutionWaseda University

Principal Investigator

近藤 眞理子  早稲田大学, 国際教養学術院, 教授 (00329054)

Co-Investigator(Kenkyū-buntansha) SHORT GREGORY  早稲田大学, 国際教養学術院, 外国人特別研究員
SHORT Gregory  早稲田大学, 国際教養学術院, 外国人特別研究員
Project Period (FY) 2014-04-25 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2015: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2014: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywords外国語学習 / CALL / システム開発 / 音声学習 / 学習支援システム
Outline of Annual Research Achievements

本研究費を受け、この2年間でCALL(Computer Assisted Language Learning)技術を高めるために、(1) 日本語の発話速度のデータベースの作成と(2) 外国語発音向上のためのシステム開発の研究を行った。特に発音向上のためのシステム開発の研究は、発音向上という目的だけでなく、音声学や音声工学などの基礎科学、また外国語音声教育などへの応用研究に貢献できるものである。
まず、(1)の日本語の発話速度のデータベース(Jasper)は、日本語母語話者が無意味語をゆっくり、普通、速いの三つの異なる速度で発話したものを収録したものである。このデータベースは日本語の母音の長短、促音、撥音などの特殊拍の長さが、発話速度によりどう変化しているかの研究には不可欠なもので、特殊拍と発話リズムの研究に役立つように構築してある。また既存のデータベースと合わせて、構築したJasperを使い、日本語話者の知覚実験を行い、母音長の知覚には、母音そのものの長さよりも2モーラ前から1モーラ後ろに出現する母音長が大きく影響を与えていることを示した。この結果を元に、日本語話者が異なる発話速度において、どのように母音長を知覚するかを解析した。
(2)の外国語学習のためのシステム開発に向けての研究は、まずニューラル・ネットワークを用い、言語学習者の発話の音声波形を元に、異なる話者個人個人の発話特徴ではなく、様々な話者共通の音声特徴 (features) を抽出する方法を提唱した。発話音声は、言語音声情報だけでなく、話者の身長・体重・性別・年齢などの言語外的要因の影響も受けるため、話者共通の音声特徴の抽出は簡単ではないが、この話者共通の音声特徴を使い、学習言語にとらわれない、多言語に対応した学習者の発音判定のためのアルゴリズムを考案した。

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (15 results)

All 2016 2015 2014

All Journal Article (6 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results,  Acknowledgement Compliant: 5 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Journal Article] Automatic recognition of Japanese vowel length accounting for speaking rate and motivated by perception analysis2015

    • Author(s)
      Short, G., Hirose, K., Kondo, M., & Minematsu, N.
    • Journal Title

      Speech Communication

      Volume: 73 Pages: 47-63

    • DOI

      10.1016/j.specom.2015.07.001

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Language Independent Automatic Pronunciation Scoring with Features Based on Dynamic Time Warping2015

    • Author(s)
      Gregory Short, Mariko Kondo
    • Journal Title

      Proc.of the Joint conference of 2015 International Conference on Speech Database and Assessments and Conference on Asian spoken Language Research and Evaluation

      Volume: 1 Pages: 245-249

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Extracting Speaker-Normalized Features with Sub-Neural Networks2015

    • Author(s)
      Gregory Short, Mariko Kondo
    • Journal Title

      RISP International Workshop on Nonlinear Circuits, Communications, and Signal Processing

      Volume: 1 Pages: 70-73

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] Vowel epenthesis in Japanese speakers’ L2 English2015

    • Author(s)
      Yazawa, Kakeru, Konishi, Takayuki, Hanzawa, Keiko, Short, Gregory, Kondo, Mariko
    • Journal Title

      Proc. of the 18th International Congress of Phonetic Science, Glasgow, UK, Pape

      Volume: 1

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] A Study of the Production of Unstressd Vowels by Japanese Speakers of English Using the J-AESOP Corpus2015

    • Author(s)
      Yazawa, Kakeru, Ozaki, Yumi, Short Gregory, Kondo, Mariko & Sagisaka, Yoshinori
    • Journal Title

      Proc.of the Joint conference of 2015 International Conference on Speech Database and Assessments and Conference on Asian spoken Language Research and Evaluation

      Volume: 1 Pages: 96-100

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Vowel epenthesis in Japanese speakers' L2 English2015

    • Author(s)
      Matsumura, Kakeru, Konishi, Takayuki, Hanzawa, Keiko, Short, Gregory & Kondo, Mariko
    • Journal Title

      Proceedings of International Congress of Phonetic Science 2015

      Volume: 1 Pages: 1-5

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Perception of English liquid consonants by Japanese speakers: Evidence from mimicry speech2016

    • Author(s)
      Mariko Kondo, Gregory Short
    • Organizer
      New Sounds 2016
    • Place of Presentation
      Aarhus, Denmark
    • Year and Date
      2016-06-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Language Independent Automatic Pronunciation Scoring with Features Based on Dynamic Time Warping2015

    • Author(s)
      Gregory Short, Mariko Kondo
    • Organizer
      2016 O-COCOSDA/CASLRE
    • Place of Presentation
      中国 上海
    • Year and Date
      2015-10-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Study of the Production of Unstressd Vowels by Japanese Speakers of English Using the J-AESOP Corpus2015

    • Author(s)
      Kakeru Yazawa, Yumi Ozaki, Gregory Short, Mariko Kondo, Yoshinori Sagisaka
    • Organizer
      2016 O-COCOSDA/CASLRE
    • Place of Presentation
      中国 上海
    • Year and Date
      2015-10-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Vowel epenthesis in Japanese speakers' L2 English2015

    • Author(s)
      Matsumura, Kakeru, Konishi, Takayuki, Hanzawa, Keiko, Short, Gregory & Kondo, Mariko
    • Organizer
      The 18th International Congress of Phonetic Sciences
    • Place of Presentation
      Glasgow, UK
    • Year and Date
      2015-08-10 – 2015-08-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] Vowel epenthesis in Japanese speakers’ L2 English2015

    • Author(s)
      Kakeru Yazawa,Takayuki Konishi, Keiko Hanzawa, Gregory Short, Mariko Kondo
    • Organizer
      The 18th International Congress of Phonetic Sciences
    • Place of Presentation
      Glasgow, UK
    • Year and Date
      2015-08-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phonemic interpretation and phonetic manifestation of English liquid consonants by Japanese speakers2015

    • Author(s)
      Kondo, Mariko
    • Organizer
      The 11th Phonology of Contemporary English Conference
    • Place of Presentation
      Toulouse, France
    • Year and Date
      2015-04-09 – 2015-04-13
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] English liquids production by Japanese speakers reconsidered2015

    • Author(s)
      Kondo, Mariko, Short, Gregory, Konishi, Takayuki & Matsumura, Kakeru
    • Organizer
      International workshop on audio-visual affective prosody in social interaction & second language learning
    • Place of Presentation
      Bordeaux, France
    • Year and Date
      2015-03-05 – 2015-03-06
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Extracting Speaker-Normalized Features with Sub-Neural Networks2015

    • Author(s)
      Short, Gregory and Kondo, Mariko
    • Organizer
      RISP International Workshop on Nonlinear Circuits, Communications, and Signal Processing
    • Place of Presentation
      Kuala Lumpur, Malaysia
    • Year and Date
      2015-02-27 – 2015-03-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] An overview of the Japanese speaking rate database Jasper2014

    • Author(s)
      Short, Gregory
    • Organizer
      Perception-Production Studies and Corpus-based Approaches in Second Language Phonetics and Phonology
    • Place of Presentation
      Waseda University, Japan
    • Year and Date
      2014-07-29 – 2014-07-31
    • Related Report
      2014 Annual Research Report

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Published: 2015-01-22   Modified: 2024-03-26  

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