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KMID : 1022420110030010117
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Phonetics and Speech Sciences
2011 Volume.3 No. 1 p.117 ~ p.123
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The Effect of Signal-to-Noise Ratio on Sentence Recognition Performance in Pre-school Age Children with Hearing Impairment
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Lee Mi-Sook
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Abstract
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Most individuals with hearing impairment have difficulty in understanding speech in noisy situations. This study was conducted to investigate sentence recognition ability using the Korean Standard-Sentence Lists for Preschoolers (KS-SL-P2) in pre-school age children with cochlear implants and hearing aids. The subjects of this study were 10 pre-school age children with hearing aids, 12 pre-school age children with cochlear implants, and 10 pre-school age children with normal hearing. Three kinds of signal-to-noise (SNR) conditions (+10 ㏈, +5 ㏈, 0 ㏈) were applied. The results for all pre-school age children with cochlear implants and hearing aids presented a significant increase in the score for sentence recognition as SNR increased. The sentence recognition score in speech noise were obtained with the SNR +10 ㏈. Significant differences existed between groups in terms of their sentence recognition ability, with the cochlear implant group performing better than the hearing aid group. These findings suggest the presence of a sentence recognition test using speech noise is useful for evaluating pre-school age children’s listening skill.
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KEYWORD
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signal-to-noise ratio(SNR), Korean Standard-Sentence Lists for Preschoolers(KS-SL-P2), sentence recognition test
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