Journal article
The Effects of “Noise Suppression” Hearing Aids on Consonant Recognition in Speech-Babble and Low-Frequency Noise
Ear and hearing, Vol.10(4), pp.243-249
08/1989
DOI: 10.1097/00003446-198908000-00006
PMID: 2619801
Abstract
We evaluated the performance of experienced hearing-aid users wearing seven different commercially available “noise-suppression” hearing aids. Two hearing aids, the Audiotone A-54 and the Telex 363C, used amplitude compression. The others, two versions of a Maico hearing aid SP147, a Richards ASE-B, a Rion HB-69AS, and a Siemens 283ASP, are designed to attenuate specific frequency regions in the presence of noise. Sixteen subjects listened to 13 consonants in the form /i/-consonant-/i/ with six replications per consonant (78 items). Performance was measured with the compression or noise-suppression circuit on and off in the presence of speech-babble noise and in continuous low-frequency noise. Measurements were also obtained with the suppression circuit “off” but without any background noise. The results suggested that only a few subjects benefitted from the noise-suppression circuits, and in several cases performance in noise was poorer with the noise suppression circuit than without it. An information-transfer analysis of the errors indicated that enhanced or decreased performance was generally a result of changes across all phonetic features, not specific ones.
Details
- Title: Subtitle
- The Effects of “Noise Suppression” Hearing Aids on Consonant Recognition in Speech-Babble and Low-Frequency Noise
- Creators
- Richard Tyler - Department of Otolaryngology—Head and Neck Surgery [R. S. T., F. K. K.] and the Department of Speech Pathology and Audiology [R. S. T.]. The University of Iowa, Iowa City, Iowa 52242Francis Kuk
- Resource Type
- Journal article
- Publication Details
- Ear and hearing, Vol.10(4), pp.243-249
- Publisher
- Williams & Wilkins
- DOI
- 10.1097/00003446-198908000-00006
- PMID
- 2619801
- ISSN
- 0196-0202
- eISSN
- 1538-4667
- Language
- English
- Date published
- 08/1989
- Academic Unit
- Communication Sciences and Disorders; Otolaryngology
- Record Identifier
- 9984002419602771
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