Aerodynamic Characteristics of Korean Bilabial Stop Consonant as a Function of Phonemic Position in a Syllable

음절내 음소 출현 위치에 따른 한국어 양순 파열음의 공기역학적인 특징

  • 박상희 (대구대학교 언어치료학과, 동산난청연구소(부산)) ;
  • 정행임 (대구대학교 대학원) ;
  • 정옥란 (대구대학교 언어치료학과) ;
  • 석동일 (대구대학교 언어치료학과)
  • Published : 2002.12.01


Aerodynamic analysis study was performed on 14 normal subjects (2 males, 12 females) with nonsense syllables composed of Korean bilabial stops (/p, p', $p^{h}$) and their preceding and/or following vowels, /i, a, u/. That is, [pi, p'i, $p^{h}i$, pa, p'a, $p^{h}a$, pu, p'u, $p^{h}u$, ipi, apa, upu, $ip^{h}i$, $ap^{h}a$, $up^{h}u$, ip'i, ap'a, up'u]. All measures were taken and analysed using Aerophone II voice function analyzer and included peak air pressure, mean air pressure, maximum flow rate, volume, mean SPL and phonatory SPL. A t-test and one-way ANOVA were employed for analysis. A post-hoc analysis was performed with Scheffe and Bonferroni. The results were as follows: First, MSPL. and MAP of /p, p', $p^{h}$/ were significantly different in different positions (initial and medial position). In addition, different vowel environment also produced significantly different aerodynamic characteristics those consonants. Especially the lax consonant /p/ was significantly different /i, a, u/ vowel environments. The tense consonant /p'/ was significantly different only /i/ vowel environment.