| Speech reception by listeners with real and simulated hearing impairment: effects of continuous and interrupted noise. | |
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MedLine Citation:
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PMID: 20649229 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effects of audibility and age on masking for sentences in continuous and interrupted noise were examined in listeners with real and simulated hearing loss. The absolute thresholds of each of ten listeners with sensorineural hearing loss were simulated in normal-hearing listeners through a combination of spectrally-shaped threshold noise and multi-band expansion for octave bands with center frequencies from 0.25-8 kHz. Each individual hearing loss was simulated in two groups of three normal-hearing listeners (an age-matched and a non-age-matched group). The speech-to-noise ratio (S/N) for 50%-correct identification of hearing in noise test (HINT) sentences was measured in backgrounds of continuous and temporally-modulated (10 Hz square-wave) noise at two overall levels for unprocessed speech and for speech that was amplified with the NAL-RP prescription. The S/N in both continuous and interrupted noise of the hearing-impaired listeners was relatively well-simulated in both groups of normal-hearing listeners. Thus, release from masking (the difference in S/N obtained in continuous versus interrupted noise) appears to be determined primarily by audibility. Minimal age effects were observed in this small sample. Observed values of masking release were compared to predictions derived from intelligibility curves generated using the extended speech intelligibility index (ESII) [Rhebergen et al. (2006). J. Acoust. Soc. Am. 120, 3988-3997]. |
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Authors:
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Joseph G Desloge; Charlotte M Reed; Louis D Braida; Zachary D Perez; Lorraine A Delhorne |
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Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural |
Journal Detail:
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Title: The Journal of the Acoustical Society of America Volume: 128 ISSN: 1520-8524 ISO Abbreviation: J. Acoust. Soc. Am. Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-07-23 Completed Date: 2010-11-02 Revised Date: 2011-08-01 |
Medline Journal Info:
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Nlm Unique ID: 7503051 Medline TA: J Acoust Soc Am Country: United States |
Other Details:
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Languages: eng Pagination: 342-59 Citation Subset: IM |
Affiliation:
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Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acoustic Stimulation Adolescent Adult Age Factors Aged Auditory Threshold Female Hearing Impaired Persons / psychology* Hearing Loss, Sensorineural / psychology* Humans Male Middle Aged Noise / adverse effects* Perceptual Masking* Signal Detection, Psychological* Speech Intelligibility* Speech Perception* Speech Reception Threshold Test Young Adult |
| Grant Support | |
ID/Acronym/Agency:
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R01DC00117/DC/NIDCD NIH HHS |
| Comments/Corrections | |
Erratum In:
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J Acoust Soc Am. 2010 Nov;128(5):3253 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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