Noise evaluation based on loudness-perception characteristics of older adults

Kenji Kurakata, Tazu Mizunami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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. This study used a psychoacoustic experiment to investigate loudness of various sounds perceived by older people aged over 60. Analyses of results revealed that sound levels weighted by listeners' hearing characteristics matched the judged loudness better than LAeq values did. This report describes the development of a noise evaluation method that can evaluate noises for senior citizens more accurately than the conventional method using A-weighting.

Original languageEnglish
Title of host publicationINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering
Subtitle of host publicationImproving the World Through Noise Control
EditorsJohn Davy, Marion Burgess, Charles Don, Liz Dowsett, Terry McMinn, Norm Broner
PublisherAustralian Acoustical Society
ISBN (Electronic)9780909882037
Publication statusPublished - 2014 Jan 1
Event43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014 - Melbourne, Australia
Duration: 2014 Nov 162014 Nov 19

Publication series

NameINTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control

Conference

Conference43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control, INTERNOISE 2014
CountryAustralia
CityMelbourne
Period14/11/1614/11/19

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Keywords

  • Aging effect
  • Loudness
  • Noise evaluation

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

Kurakata, K., & Mizunami, T. (2014). Noise evaluation based on loudness-perception characteristics of older adults. In J. Davy, M. Burgess, C. Don, L. Dowsett, T. McMinn, & N. Broner (Eds.), INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control (INTERNOISE 2014 - 43rd International Congress on Noise Control Engineering: Improving the World Through Noise Control). Australian Acoustical Society.