The Effect of Phonetic Contexts on Nasalance Score for Normal Adults

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J Korean Soc Laryngol Phoniatr Logop > Volume 10(2); 1999 > Article

Journal of The Korean Society of Laryngology, Phoniatrics and Logopedics 1999;10(2): 97-101.

음운 환경이 정상 성인의 비음치에 미치는 영향

김민정¹, 심현섭²

¹연세대학교 언어병리학 협동과정²이화여자대학교 특수교육학과 언어병리학 협동과정

The Effect of Phonetic Contexts on Nasalance Score for Normal Adults

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ABSTRACT

The nasalance score measured by Nasometer is a supplementary data for the perceptually rated nasality by a trained speech pathologist. Because the nasalance score varies with speech material, a valid and reliable material should be developed for evaluating it. The objectives of the present study were (1) to examine whether phonetic contexts affect the nasalace score and (2) to examine the reliability of both meaningless one-syllable words and meaningful sentences. This study analyzed nasalance score in 20 different phonetic contexts from 24 normal adults. The results showed (1) nasalance score increased as the percentage of nasal consonants and vowel /i/ increased, (2) the manner and the place of articulation in oral consonants did not influence the nasalance score, and (3) in nasalance score, correlation between sentences was found to be high, but correlation between syllables was not. These results may indicate that, when preparing the speech material for measuring the nasalance score, it is important to consider not only the percentage of nasal consonants but also that of vowel /i/ in the speech material. In addition, the sentence is more reliable material than meaningless one-syllable words.

KEY WORDS： Nasalance score;Phonetic context;Nasometer;