Effect of audibility on spatial release from speech-on-speech masking

Glyde, Helen, Buchholz, Jorg M., Nielsen, Lillian, Best, Virginia, Dillon, Harvey, Cameron, Sharon and Hickson, Louise (2015) Effect of audibility on spatial release from speech-on-speech masking. Journal of the Acoustical Society of America, 138 5: 3311-3319. doi:10.1121/1.4934732

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Author Glyde, Helen
Buchholz, Jorg M.
Nielsen, Lillian
Best, Virginia
Dillon, Harvey
Cameron, Sharon
Hickson, Louise
Title Effect of audibility on spatial release from speech-on-speech masking
Journal name Journal of the Acoustical Society of America   Check publisher's open access policy
ISSN 0001-4966
Publication date 2015-11-01
Year available 2015
Sub-type Article (original research)
DOI 10.1121/1.4934732
Open Access Status File (Publisher version)
Volume 138
Issue 5
Start page 3311
End page 3319
Total pages 9
Place of publication Melville, NY, United States
Publisher Acoustical Society of America
Language eng
Abstract This study investigated to what extent spatial release from masking (SRM) deficits in hearing-impaired adults may be related to reduced audibility of the test stimuli. Sixteen adults with sensorineural hearing loss and 28 adults with normal hearing were assessed on the Listening in Spatialized Noise–Sentences test, which measures SRM using a symmetric speech-on-speech masking task. Stimuli for the hearing-impaired listeners were delivered using three amplification levels (National Acoustic Laboratories - Revised Profound prescription (NAL-RP) +25%, and NAL-RP +50%), while stimuli for the normal-hearing group were filtered to achieve matched audibility. SRM increased as audibility increased for all participants. Thus, it is concluded that reduced audibility of stimuli may be a significant factor in hearing-impaired adults' reduced SRM even when hearing loss is compensated for with linear gain. However, the SRM achieved by the normal hearers with simulated audibility loss was still significantly greater than that achieved by hearing-impaired listeners, suggesting other factors besides audibility may still play a role.
Keyword Acoustics
Audiology & Speech-Language Pathology
Audiology & Speech-Language Pathology
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID DC04545
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Health and Rehabilitation Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 5 times in Thomson Reuters Web of Science Article | Citations
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