Speech Intelligibility in Automobile Noise in Young and Middle-Aged Adults

Authors

  • Aimée M. Surprenant Psychology Department, Memorial University of NL, St. John’s, NL, A1M 3T4
  • Patricia Davis Herrick Labs, 140 S Martin Jischke Drive, Purdue University, West Lafayette, IN 479
  • Donald P. Gallant Herrick Labs, 140 S Martin Jischke Drive, Purdue University, West Lafayette, IN 479

Abstract

Two experiments investigated how automobile noise affects intelligibility of speech signals in both young and middle-aged individuals. In Experiment 1, the effect of automobile noise was compared to speech babble at a number of speech-to-noise ratios. In order to achieve the same intelligibility, the speech-to-noise ratio for the speech babble needed to be substantially greater than the automobile noise. In Experiment 2, middle-aged adults between the ages of 50 and 65 were given the sentences in automobile noise. Even though their hearing acuity was not severe enough to warrant a clinical diagnosis, their performance was significantly worse than the younger adults, particularly for sentences that had few contextual cues. In conclusion, although automobile noise is less damaging than speech babble at typical speech-to-noise ratios, speech understanding for individuals with even small amounts of hearing loss is significantly impacted by the noise. Automobile makers therefore should continue their efforts to reduce the noise levels in cars in order to increase speech intelligibility. [Work supported by Ford Motor Company].

Downloads

How to Cite

1.
Surprenant AM, Davis P, Gallant DP. Speech Intelligibility in Automobile Noise in Young and Middle-Aged Adults. Canadian Acoustics [Internet]. 2013 Mar. 1 [cited 2023 Mar. 31];41(1). Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2599

Issue

Vol. 41 No. 1 (2013)

Section

Article - Hearing Sciences

License

Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i)    to publish, reproduce, distribute, display and store the Contribution;
ii)    to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii)    to exploit all subsidiary rights in the Contribution,
iv)    to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v)    to licence any third party to do any or all of the above.

Most read articles by the same author(s)