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2013 Fiscal Year Final Research Report

On making quality recordings of distant speech by using a 2D microphone array

Research Project

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Project/Area Number 23500207
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Perception information processing/Intelligent robotics
Research InstitutionKanazawa University

Principal Investigator

MIYOSHI MASATO  金沢大学, 電子情報学系, 教授 (40396205)

Co-Investigator(Renkei-kenkyūsha) SAITOU Takeshi  金沢大学, 理工研究域電子情報学系, 助教 (70446962)
NISHIKAWA Kiyoshi  金沢大学, 名誉教授 (40019774)
Project Period (FY) 2011 – 2013
Keywords遠隔音声収録 / 指向性収音 / 雑音除去 / 明瞭性 / 開口長
Research Abstract

In this research, we obtained the following major achievements through a study about distant speech recording. (1) 2 dimensional microphone array producing an easily steerable spotlight-shaped directional beam. (2) Enhancement of the intelligibility of captured speech by controlling 3 acoustic features such as mean pitch frequency, pitch frequency range and spectral intensity around 3 kHz. (3) Bass augmentation of speech captured through a portable microphone-array of an insufficient aperture length by using psychoacoustic phenomenon MISSING FUNDAMENTAL. These achievements are expected to be useful for making quality recordings of lecture speech.

  • Research Products

    (7 results)

All 2014 2013 2012 2011

All Presentation (7 results)

  • [Presentation] 指向性収音音声の強調方法について2014

    • Author(s)
      阿部悠輝, 丹生賢, 齋藤毅, 三好正人
    • Organizer
      信学技法
    • Place of Presentation
      東京
    • Year and Date
      20140300
  • [Presentation] 雑音下における発話で変化した音響特徴が音声の聞き取り易さに与える影響2013

    • Author(s)
      高山貴史, 齋藤毅, 三好正人
    • Organizer
      信学技法
    • Place of Presentation
      金沢
    • Year and Date
      20131200
  • [Presentation] マイクロホンアレイの開口長に起因する収音音声劣化の改善について2013

    • Author(s)
      丹生賢, 阿部悠輝, 齋藤毅, 三好正人
    • Organizer
      信学技法
    • Place of Presentation
      金沢
    • Year and Date
      20131200
  • [Presentation] 雑音下で音声明瞭性に寄与する音響特徴について2013

    • Author(s)
      高山貴史, 齋藤毅, 三好正人
    • Organizer
      平成25年度電気関係学会北陸支部連合大会
    • Place of Presentation
      金沢
    • Year and Date
      20130900
  • [Presentation] マイクロホンアレイの開口長収音音声品質の関係について2013

    • Author(s)
      丹生賢, 齋藤毅, 三好正人
    • Organizer
      平成25年度電気関係学会北陸支部連合大会
    • Place of Presentation
      金沢
    • Year and Date
      20130900
  • [Presentation] 遠隔音声のスポットライト収音について2012

    • Author(s)
      丹生賢, 堀内亮輔, 齋藤毅, 三好正人
    • Organizer
      AESジャパンコンファレンス・仙台
    • Place of Presentation
      仙台
    • Year and Date
      20121200
  • [Presentation] 音声の変調スペクトルを用いる雑音低減方法について2011

    • Author(s)
      岩崎崇幸, 斎藤毅, 三好正人
    • Organizer
      信学技法
    • Place of Presentation
      長野
    • Year and Date
      20111000

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Published: 2015-07-16  

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