Spectral enhancement of Polish vowels to improve their identification by hearing impaired listeners

Abnormalities in the cochlear function usually cause broadening of the auditory filters which reduces the speech intelligibility. An attempt to apply a spectral enhancement algorithm has been undertaken to improve the identification of Polish vowels by subjects with cochlear-based hearing-impairment...

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Bibliographic Details
Published in:Applied acoustics 2004-05, Vol.65 (5), p.473-483
Main Authors: Ozimek, E, Sęk, A, Wicher, A, Skrodzka, E, Konieczny, J
Format: Article
Language:English
Subjects:
Biological and medical sciences
Cochlear function
Fundamental and applied biological sciences. Psychology
Identification scores
Language
Production and perception of spoken language
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Spectral enhancement
Vowels
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Summary:Abnormalities in the cochlear function usually cause broadening of the auditory filters which reduces the speech intelligibility. An attempt to apply a spectral enhancement algorithm has been undertaken to improve the identification of Polish vowels by subjects with cochlear-based hearing-impairment. The identification scores of natural (unprocessed) vowels and spectrally enhanced (processed) vowels has been measured for hearing-impaired subjects. It has been found that spectral enhancement improves vowel scores by about 10% for those subjects, however, a wide variation in individual performance among subjects has been observed. The overall vowels identification scores obtained were 85% for natural vowels and 96% for spectrally enhanced vowels.
ISSN:0003-682X
1872-910X
DOI:10.1016/j.apacoust.2003.11.004