The Effects of Speech Presentation Level on Acceptance of Noise in Listeners With Normal and Impaired Hearing Purpose To compare the effects of speech presentation level on acceptance of noise in listeners with normal and impaired hearing. Method Participants were listeners with normal (n = 24) and impaired (n = 46) hearing who were matched for conventional acceptable noise level (ANL). ANL was then measured ... Research Article
Research Article  |   August 01, 2007
The Effects of Speech Presentation Level on Acceptance of Noise in Listeners With Normal and Impaired Hearing
 
Author Affiliations & Notes
  • Melinda C. Freyaldenhoven
    Louisiana Tech University, Ruston
  • Patrick N. Plyler
    University of Tennessee, Knoxville
  • James W. Thelin
    University of Tennessee, Knoxville
  • Mark S. Hedrick
    University of Tennessee, Knoxville
  • Contact author: Melinda C. Freyaldenhoven, Louisiana Tech University, Department of Speech, P.O. Box 3165, Ruston, LA 71272. E-mail: melinda@latech.edu.
Article Information
Hearing & Speech Perception / Acoustics / Hearing Disorders / Speech, Voice & Prosody / Hearing / Research Articles
Research Article   |   August 01, 2007
The Effects of Speech Presentation Level on Acceptance of Noise in Listeners With Normal and Impaired Hearing
Journal of Speech, Language, and Hearing Research, August 2007, Vol. 50, 878-885. doi:10.1044/1092-4388(2007/062)
History: Received June 20, 2006 , Accepted December 20, 2006
 
Journal of Speech, Language, and Hearing Research, August 2007, Vol. 50, 878-885. doi:10.1044/1092-4388(2007/062)
History: Received June 20, 2006; Accepted December 20, 2006
Web of Science® Times Cited: 27

Purpose To compare the effects of speech presentation level on acceptance of noise in listeners with normal and impaired hearing.

Method Participants were listeners with normal (n = 24) and impaired (n = 46) hearing who were matched for conventional acceptable noise level (ANL). ANL was then measured at 8 fixed speech presentation levels (40, 45, 50, 55, 60, 65, 70, and 75 dB HL) to determine if global ANL (i.e., ANL averaged across speech presentation levels) or ANL growth (i.e., the slope of the ANL function) varied between groups.

Results The effects of speech presentation level on acceptance of noise were evaluated using global ANLs and ANL growth. Results showed global ANL and ANL growth were not significantly different for listeners with normal and impaired hearing, and neither ANL measure was related to pure-tone average for listeners with impaired hearing. Additionally, conventional ANLs were significantly correlated with both global ANLs and ANL growth for all listeners.

Conclusion These results indicate that the effects of speech presentation level on acceptance of noise are not related to hearing sensitivity. These results further indicate that a listener’s conventional ANL was related to his or her global ANL and ANL growth.

Order a Subscription
Pay Per View
Entire Journal of Speech, Language, and Hearing Research content & archive
24-hour access
This Article
24-hour access