• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Modeling of auditory perception for noise evalation based on loudness-perception characteristics of older adults

Research Project

Project/Area Number 24653219
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Experimental psychology
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

KURAKATA Kenji  独立行政法人産業技術総合研究所, ヒューマンライフテクノロジー研究部門, グループ付き (90356931)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords聴覚 / 音響心理 / 音の大きさ / 聴覚モデル / 高齢者 / 加齢効果 / 騒音評価
Outline of Final Research Achievements

The frequency-weighting A used for noise measurement was determined based on hearing characteristics expressed as equal-loudness-level contours. The time-averaged, A-weighted sound level (LAeq) of a sound corresponds well with the perceived loudness. However, good correspondence between LAeq and the perceived loudness is confined to cases in which listeners are young people with normal hearing. In this study, psychoacoustic experiments were conducted to investigate loudness of various sounds perceived by young adults and older adults aged over 60. Analyses of results revealed that sound levels weighted by older listeners' hearing characteristics matched the judged loudness better than LAeq values did. Based on the results, a noise evaluation method was proposed, which can evaluate noises for senior citizens more accurately than the conventional method using A-weighting.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (3 results)

All 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (2 results)

  • [Journal Article] Comparison of equal-loudness-level contours between otologically normal young and older adults2014

    • Author(s)
      Kenji Kurakata and Tazu Mizunami
    • Journal Title

      Acoustical Science and Technology

      Volume: -

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Noise evaluation based on loudness-perception characteristics of older adults2014

    • Author(s)
      Kenji Kurakata and Tazu Mizunami
    • Organizer
      Inter-Noise 2014
    • Place of Presentation
      MCEC, Melbourne (Australia)
    • Year and Date
      2014-11-18
    • Related Report
      2014 Annual Research Report
  • [Presentation] 等ラウドネスレベル特性の加齢変化と騒音評価2014

    • Author(s)
      倉片憲治,水浪田鶴
    • Organizer
      日本音響学会
    • Place of Presentation
      北海学園大学(札幌市)
    • Year and Date
      2014-09-05
    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi