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1996 Fiscal Year Final Research Report Summary

Sound Perception and Perceptual Integration Information

Research Project

Project/Area Number 07308026
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section総合
Research Field Intelligent informatics
Research InstitutionNagoya University

Principal Investigator

KAKEHI Kazuhiko  Nagoya University, Graduate School of Human Informatics Professor, 大学院・人間情報学研究科, 教授 (90262930)

Co-Investigator(Kenkyū-buntansha) KAWAHARA Hideki  ATR Human Information Processing Research Laboratories, Department 1 Head, 人間情報通信研究所・第1研究室, 主幹研究員
AKAGI Masato  Japan Advanced Institute of Science and Technology, Hokuriku, School of Informat, 情報科学研究科, 助教授 (20242571)
SHIMADA Shoji  Ngaoka University of Technology, Faculty-of Engineering Professor, 工学部, 教授 (20262462)
SHIKANO Kiyohiro  Advanced Institute of Science and Technology, Nara, School of Information Scienc, 情報科学研究科, 教授 (00263426)
ITAKURA Fumitada  Nagoya University, School of Engineering Professor, 工学部, 教授 (30168299)
Project Period (FY) 1995 – 1996
KeywordsSound field / Sound loccalization / Reverberation suppression / Noise suppression / Sound source separation / Representation of sound signal / Synthesis of sound field / Perceptual integration of information
Research Abstract

A fudamental research was conducted to clarify the robust human sound perception and cognition of sound environment, and to realize a new sound processing technique and information procesiing models for sound source localization, noise and reverberation supression, and synthesis of sound fields. Several new methods for sound localization and reverberation/noise suppression were developed. A new speech recognition system by HMM composition taking into the the some methods mentioned above was developed to prove its advantage to the usual system using reverberation/noise suppression technique merely as a pre-processor.
Individual study results are shwon as follows.
Sound field : ^<**>A design method of inverse filter to re-synthesize an original sound field in frequency domain. ^<**>A coding method for a sound field to be applied three dimensional space. ^<**>Data base of sound fields used for sound field simulation.
Sound localization : ^<**>An engineering model of a sound losalization using zero-crossing time information. ^<**>A good algorithm to calculate an inverse filter used for sound localization with a pair of head phone. ^<**>Finding a human ability of matching between mulitiple images of spekers and a speech sound source. ^<**>Finding that the perceptual distance to sound source depends on short time component of impulse response for imaginary sound sources.
Sound source separation : ^<**>The way of application of sound separation method of mutual information minimalization to actual sound fields. ^<**>Practical methods to suppress noise and reverberation using only 2 or 3 microphones. ^<**>A new extraction method of signal from the noise-added signal using human perceptual chracteristic.
Representation of sound signal : ^<**>A new high quality speech analysis-synthesis method by a new spectral envelope representation (STRAIGHT) and a new pitch extraction method (TEMPO)

  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] 筧 一彦: "音声知覚のモデル" 行動計量学. 22. 30-39 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 赤木 正人: "カクテルパーティ効果とそのモデル化" 電子情報通信学会誌. 78. 450-453 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 近藤 公久: "音声情報と同時に提示される文字情報の音声知覚に与える影響" 日本音響学会誌. 51. 548-557 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 筧 一彦: "心理音声学の展望" 音聲学会報. 211. 30-39 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 滝口 哲也: "雑音と残響のある環境下でのHMM合成によるハンズフリー音声認識" 電子情報通信学会論文誌 D-II. J79-D-II. 2047-2053 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加藤 和美: "母音間閉鎖子音知覚における音素特徴抽出と知覚的統合" 日本音響学会誌. 53. 85-94 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 鵜木 祐史: "雑音が付加された波形からの信号波形の一抽出法" 電子情報通信学会論文誌 A. J80-A. (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kazuhiko Kakehi: "Phonological Structure and Language Processing "Phoneme/Syllable perception and the temporal structure of speech"" Mouton de Gruyter Eds. T. Otake & A. Cutler, (125-143) (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kakehi: "Models of Soeech Perception" The Japanese Journal of Behaviormetrics. 22. 30-39 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] M.Akagi: "Cocktail Party Effects and Its Modelings" The Journal of the Institute of Electronics, Information and Communication Engineers. 78. 450-453 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kondo: "Effect of simultaneously presented visual characters on auditory perception" The Journal of Acoustical Society of Japan. 51. 548-557 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kakehi: "Trends in Psychophonetics" The Bulletin of the Phonetic Soci- of Japan. 211. 30-39 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Takiguchi: "Hands Free Speech Recognition by HMM Composition under Noisy and Reverberant Environment" The Transactions of the Institute of Electronics, Information and Communication Engineers D-II. J79-D-II. 2047-2053 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kato: "Phonemic feature extraction and perceptual ingration in the perception of an intervocalic stop consonants" The Journal of Acoustical Society of Japan. 53. 85-94 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Unoki: "An Extraction Method of Signal from the Noise-Added Signal" The Transactions of the Institute of Electronics, Information and Communication Engineers A. J80-A. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Kakehi: Phoneme/syllable perception and the temporal structure of speech (in Phonological Structure Language Processing). Muton de Gruyter, Eds.T.Otake and A.Cutler, 125-143 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-09  

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