CAJ | 학술논문

　　目的探讨3~6岁听力障碍儿童的嗓音声学特点。方法采自148名3~6岁听障儿童和122名3~6岁健听儿童的声样，检测声样的声学参数值：基频(F0)、基频标准差(F0SD)、基频微扰(jitter)、振幅微扰(shimmer)、声门噪声能量(NNE)、开商(OQ)、速度商(SQ)、幅度商(AQ)、声门频谱斜率(STF)。结果听障儿童F0、SQ、STF、F0SD、jitter高于健听儿童(P<0.05)，shimmer、NNE、OQ、AQ与健听儿童无显著性差异(P>0.05)。除3~4岁健听儿童的NNE显著低于5~6岁儿童外(P<0.05)，其余各项声学参数值在不同年龄儿童之间均无显著性差异(P>0.05)；各项声学参数值在男童和女童间均无显著性差异(P>0.05)。结论听障儿童发声时声带振动速度快、闭合快且激烈，声带振动的稳定性和规律性较差。声学参数F0、F0SD、jitter、shimmer、NNE、OQ、SQ、AQ、STF不受性别影响；除NNE外，也不受年龄影响。
　　목적탐토3~6세은력장애인동적상음성학특점。방법채자148명3~6세은장인동화122명3~6세건은인동적성양，검측성양적성학삼수치：기빈(F0)、기빈표준차(F0SD)、기빈미우(jitter)、진폭미우(shimmer)、성문조성능량(NNE)、개상(OQ)、속도상(SQ)、폭도상(AQ)、성문빈보사솔(STF)。결과은장인동F0、SQ、STF、F0SD、jitter고우건은인동(P<0.05)，shimmer、NNE、OQ、AQ여건은인동무현저성차이(P>0.05)。제3~4세건은인동적NNE현저저우5~6세인동외(P<0.05)，기여각항성학삼수치재불동년령인동지간균무현저성차이(P>0.05)；각항성학삼수치재남동화녀동간균무현저성차이(P>0.05)。결론은장인동발성시성대진동속도쾌、폐합쾌차격렬，성대진동적은정성화규률성교차。성학삼수F0、F0SD、jitter、shimmer、NNE、OQ、SQ、AQ、STF불수성별영향；제NNE외，야불수년령영향。
Objective To investigate the acoustic characteristics of the voice of 3~6 years old children with hearing-impairment. Meth-ods The voice samples were collected from 148 hearing-impaired children and 122 normal children, all aged 3~6 years. The acoustic param-eters including F0, F0SD, jitter, shimmer, NNE, OQ, SQ, AQ, STF were compared. Results The F0, SQ, STF, F0SD, jitter were more in the children with hearing-impairment than in the normal children (P<0.05). There was no significant difference between hearing-impairment and normal children in shimmer, NNE, OQ and AQ (P>0.05). There was no significant difference of all the acoustic parameters among chil-dren with different ages (P>0.05), except the NNE was less in 3~4 years old children than 5~6 years old children (P<0.05). There was no sig-nificant difference of all the acoustic parameters between boys and girls (P>0.05). Conclusion The vibration of vocal cords is instable and ir-regular, saying overquick and close intensely in hearing-impaired children. The age and sex do not influence the acoustic parameters, except NNE is less in younger children.