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Perceptual restoration of intermittent speech relying on illusory continuity

Research Project

Project/Area Number 26330197
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Perceptual information processing
Research InstitutionKyushu Institute of Technology

Principal Investigator

Mizumachi Mitsunori  九州工業大学, 大学院工学研究院, 准教授 (90380740)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords断続音声修復 / パケットロス / 知覚的修復 / 連続聴効果 / 実環境適応性 / 音声修復 / 聴覚の錯覚
Outline of Final Research Achievements

According to a rapid increase of packet-based speech communication, packet loss is one of the most serious problems in speech communication. A perceptual restoration of intermittent speech has been proposed based on an auditory illusion, that is, the phonemic restoration effect. It is, however, difficult to directly employ the phonetic restoration for packet loss recovery due to its harsh gap-filling signal.
In this study, utterances through a smart phone were simulated with a head and torso simulator, and noisy environments were reproduced in a soundproof room. The validity of the proposed method was subjectively confirmed under noisy conditions. Furthermore, a human speech-like noise was substituted for the gap-filling signal. The speech-like noises were prepared by repeatedly overlapping short-term human speech signals. It was confirmed that the proposed gap-filling signal succeeded in reducing its noisiness.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report

Research Products

(4 results)

All 2016 2015 2014

All Presentation (3 results) (of which Int'l Joint Research: 2 results) Book (1 results)

  • [Presentation] Perceptual restoration of intermittent speech using human speech-like noise2016

    • Author(s)
      M. Mizumachi, S. Imanaga, and T. Horiuchi
    • Organizer
      23rd International Congress on Sound and Vibration (ICSV23)
    • Place of Presentation
      Athens, Greece
    • Year and Date
      2016-07-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Perceptual restoration of intermittent speech under noisy environments2015

    • Author(s)
      M. Mizumachi, S. Motomura, T. Takakura, and T. Horiuchi
    • Organizer
      22nd International Congress on Sound and Vibration (ICSV22)
    • Place of Presentation
      Florence, Italy
    • Year and Date
      2015-07-12
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Perceptual restoration of intermittent speech relying on illusory continuity2014

    • Author(s)
      M. Mizumachi, S. Motomura, T. Takakura, and T. Horiuchi
    • Organizer
      7th Forum Acousticum
    • Place of Presentation
      Krakow, Poland
    • Year and Date
      2014-09-07 – 2014-09-12
    • Related Report
      2014 Research-status Report
  • [Book] 音響キーワードブック2016

    • Author(s)
      日本音響学会 編
    • Total Pages
      494
    • Publisher
      コロナ社
    • Related Report
      2015 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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