Effect of ageing on hearing thresholds in the low frequency region

Kenji Kurakata, Tazu Mizunami, Hiroshi Sato, Yukio Inukai

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The hearing threshold for low frequency (LF) tones was measured in a pressure field to investigate the effects of ageing on hearing sensitivity. Participants were young adults around 20 years old and older adults over 60. Measurement results showed that the older listeners had a higher threshold, on average, than the young listeners. The difference of median thresholds between these two groups was about 10 dB at every measurement frequency. Furthermore, hearing abnormalities other than age-related hearing loss showed no great effect upon the LF thresholds. Comparison of LF thresholds and audiograms (i.e. mid and high frequency hearing) of the older listeners revealed only moderate correlation between them. These results suggest that older people retain good hearing sensitivity in the LF region, in contrast to their often-degraded sensitivity at higher frequencies. Therefore, in LF noise evaluation, we should carefully regard the possibility that older listeners can perceive a low level LF noise.

Original languageEnglish
Pages (from-to)175-184
Number of pages10
JournalJournal of Low Frequency Noise Vibration and Active Control
Volume27
Issue number3
DOIs
Publication statusPublished - 2008 Sep

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Geophysics
  • Mechanical Engineering

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