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Research on binaraul digital hearing aid system

Research Project

Project/Area Number 06452374
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field Otorhinolaryngology
Research InstitutionTohoku University

Principal Investigator

SUZUKI Yoiti  Tohoku University Res. Inst. of Electrical Communication, Associate Professor, 電気通信研究所, 助教授 (20143034)

Co-Investigator(Kenkyū-buntansha) OZAWA Kenji  Tohoku University Res. Inst. of Electrical Communication, Research Associate, 電気通信研究所, 助手 (30204192)
KAWASE Tetsuaki  Tohoku University Dept. of Otorhinolaryngology, Lecturer, 医学部, 講師 (50169728)
IKEDA Katsuhisa  Tohoku University Dept. of Otorhinolaryngology, Lecturer, 医学部, 講師 (70159614)
KOBAYASHI Toshimitsu  Tohoku University Dept. of Otorhinolaryngology, Associate Professor, 医学部, 助教授 (80133958)
浅野 太  東北大学, 電気通信研究所, 助手 (00231895)
Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1995: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1994: ¥3,300,000 (Direct Cost: ¥3,300,000)
KeywordsHearing aids, / Loudness, / Binaural, / Binaural listening, / Sound localization, / MLD
Research Abstract

This study aims at developing a hearing aid system which utilizes binaural hearing mechanism. This leads to realize a good performance of hearing through the good spacial selectivity for signal sound achieved by binaural listening with the two ears. Benefits were not expected for binaural listening when the difference of hearing levels between two ears is large. However, it could be expected by compensating the recruitment in loudness correctly for both ears. In 1994, thus, examinations to extend our algorithm to compensate the recruitment to two channels was conducted. Moreover, basic research to examine binaural hearing acuity psychoacoustically was also conducted. In 1995, a real time system which realized the extended algorithm was buit and hearing experiments were conducted. As results of the experiments, it was shows that speech intelligibility was significantly improved by the binaural listening. Moreover, it is found that binaural listening with the algorithm enabled subjects who exhibit good MLD a good performance in the presence of noise and a good sound localization. From the above results, we could conclude that good performance in both speech intelligibility and sound localization could be expected if the recruitment in loudness is correctly compensated for for both ears.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 和田治: "ラウドネス補償型補聴器の両耳装用に関する考察" 日本音響学会聴覚研究会資料. H-96-15. 1-8 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 和田治: "ラウドネス補償型補聴器の両耳装用に関する一考察" 日本音響学会研究発表会講演論文集. 1-3-11. 417-418 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] WADA,Osamu: "A consideration on binaural fitting of a loudoness dompensationg hearing aid" Report of Tech. Comm. on Acoustics. H-96-15. 1-8 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] WADA,Osamu: "A consideration on binaural fitting of loudness compensating hearing aid" Proc. Cong. Acoust. Soc. Jpn in March 1996. 1-3-11. 417-418 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 和田治,小澤賢司,鈴木陽一,曽根敏夫,川瀬哲明,高坂知節: "ラウドネス補償型補聴器の両耳装用に関する考察" 日本音響学会聴覚研究会資料. H-96-15. 1-8 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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