한국어의 자모음비에 따른 인공와우 착용아동의 무의미 음절의 인지도 변화
Effects of Non-sense Syllable Recognition Scores as a Function of Consonant-to-Vowel Ratios for Korean Child Wearing Cochlear Implant.
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Children with cochlear implants (CI) have more difficulty in recognizing fricative and affricative sounds than children with normal hearing in a quiet or noisy environments. This study was to examine syllabic recognition scores of CI users by presenting sounds /tʓha/, /kha/, /tha/, /pha/ at the 0, 6 and 12 dB consonant-to-vowel ratios (CVRs) in no masking conditions. This study was to help understand the characteristics of non-sense consonant-vowel (CV) syllabic recognition for Korean children with CIs and facilitate hearing-rehabilitation for them. Eleven children with CIs, aged between 6.9 years and 11.0 years (Mean age : 8.3 years) participated as subjects. Each consonant was amplified with 0, 6 and 12 dB from four Korean CV syllables which consisted of combined consonants /tʓh/, /kh/, /th/, /ph/ with a vowel /a/. As a result, in recognition scores of /tha/ and /pha/, there were no significant differences identified with the increased CVRs. However, in overall, the recognition of non-sense CV syllables were improved when CVRs increased to +6 dB (p < .05). Furthermore, there were no significant differences in recognition scores among /tʓha/, /kha/,/tha/, /pha/ as a function of CVRs. The CV syllable recognition scores showed an improvement with a CVR increase for Korean CI children. Further research will conduct on the CVR effects in a noisy condition by various groups in the future. It is suggested that CI manufacturers strive to develop new speech processing strategies to help CI users for effective communication.
Abstract
Children with cochlear implants (CI) have more difficulty in recognizing fricative and affricative sounds than children with normal hearing in a quiet or noisy environments. This study was to examine syllabic recognition scores of CI users by presenting sounds /tʓha/, /kha/, /tha/, /pha/ at the 0, 6 and 12 dB consonant-to-vowel ratios (CVRs) in no masking conditions. This study was to help understand the characteristics of non-sense consonant-vowel (CV) syllabic recognition for Korean children with CIs and facilitate hearing-rehabilitation for them. Eleven children with CIs, aged between 6.9 years and 11.0 years (Mean age : 8.3 years) participated as subjects. Each consonant was amplified with 0, 6 and 12 dB from four Korean CV syllables which consisted of combined consonants /tʓh/, /kh/, /th/, /ph/ with a vowel /a/. As a result, in recognition scores of /tha/ and /pha/, there were no significant differences identified with the increased CVRs. However, in overall, the recognition of non-sense CV syllables were improved when CVRs increased to +6 dB (p < .05). Furthermore, there were no significant differences in recognition scores among /tʓha/, /kha/,/tha/, /pha/ as a function of CVRs. The CV syllable recognition scores showed an improvement with a CVR increase for Korean CI children. Further research will conduct on the CVR effects in a noisy condition by various groups in the future. It is suggested that CI manufacturers strive to develop new speech processing strategies to help CI users for effective communication.
참고문헌 (16)
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