Phonetics and Speech Sciences (말소리와 음성과학)
- Volume 3 Issue 1
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- Pages.117-123
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- 2011
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- 2005-8063(pISSN)
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- 2586-5854(eISSN)
The Effect of Signal-to-Noise Ratio on Sentence Recognition Performance in Pre-school Age Children with Hearing Impairment
청각장애 유소아의 신호대소음비에 따른 문장인지 능력
Abstract
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 dB, +5 dB, 0 dB) 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 dB. 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.
Keywords
- signal-to-noise ratio (SNR);
- Korean Standard-Sentence Lists for Preschoolers (KS-SL-P2);
- sentence recognition test