Spectral enhancement of Polish vowels to improve their identification by hearing impaired listeners |
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Authors: | E Ozimek A S?k A Wicher E Skrodzka J Konieczny |
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Institution: | Institute of Acoustics, A. Mickiewicz University, Poznań, Poland |
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Abstract: | 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. |
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Keywords: | Spectral enhancement Vowels Identification scores Cochlear function |
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