ERIC Number: EJ1222519
Record Type: Journal
Publication Date: 2019-Jul
Pages: 7
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-1092-4388
EISSN: N/A
Available Date: N/A
Noise Exposure and Background Noise Tolerance in Listeners with Normal Audiograms
Camera, Sarah; Tufts, Jennifer; Skoe, Erika
Journal of Speech, Language, and Hearing Research, v62 n7 p2564-2570 Jul 2019
Purpose: Tolerance for background noise when listening to speech has been found to vary greatly between individuals, despite clinically similar audiograms. Recent work suggests that listeners at risk for noise-induced hearing loss (NIHL) self-report greater annoyance of background sounds compared with listeners at lower risk for NIHL. To date, the relationship between noise exposure levels and background noise tolerance has not been studied using objective noise exposure level measurements and quantitative (i.e., not questionnaire-based) background noise tolerance measures. Method: Acceptable Noise Level (ANL; Nabelek, Tucker, & Letowski, 1991) scores and week-long noise dosimetry measurements were obtained for 56 normal-hearing college students, 22 of whom were routinely exposed to levels of noise that exceed recommended exposure limits (higher risk). The remaining 34 participants did not exceed recommended exposure limits (lower risk). Results: The lower risk group's average daily noise dose was 26%, whereas the higher risk group accrued an average daily noise dose of 461%. The lower risk group was found to be more tolerant of background noise than the higher risk group, with mean ANL scores of 3.1 dB and 5.4 dB signal-to-noise ratio, respectively. A small but statistically significant relationship between ANL and noise dose was found, indicating that higher levels of noise exposure were associated with lower background noise tolerance. Conclusions: Results suggest that young adults at higher risk for NIHL based on objective noise exposure data have a slightly lower tolerance for background noise when listening to speech. These findings open avenues for future work on background noise tolerance in more diverse noise-exposed populations.
Descriptors: Acoustics, College Students, Correlation, At Risk Persons, Auditory Tests, Hearing Impairments, Young Adults, Listening Comprehension, Graphs
American Speech-Language-Hearing Association. 2200 Research Blvd #250, Rockville, MD 20850. Tel: 301-296-5700; Fax: 301-296-8580; e-mail: slhr@asha.org; Web site: http://jslhr.pubs.asha.org
Publication Type: Journal Articles; Reports - Research
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
Author Affiliations: N/A