정상 모음에 대한 구강 및 비강 spectral output 분석

Oral and Nasal Spectral Outputs in Korean Oral Vowels

  • 홍기환 (전북대학교 의과대학 이비인후과학교실) ;
  • 최승철 (전북대학교 의과대학 이비인후과학교실) ;
  • 김범규 (전북대학교 의과대학 이비인후과학교실) ;
  • 양윤수 (전북대학교 의과대학 이비인후과학교실) ;
  • 심현아 (전북대학교 의과대학 음성과학연구소)
  • 발행 : 2003.06.01

초록

Vowels are classified by the shapes of vocal tract. These shapes form constriction points along the tract, which have an influence on such vocal tract resonance as F1, F2, F3, and so on. The formant frequency is influenced by aperture and placement of tongue and the intensity is influenced by air pressure of subglottis. The object of this study compares to characterize the spectral outputs of oral and nasal spectra for the formant frequencies and intensity of Korean oral vowels. Subjects consisted of 20 normal persons (10 male and 10 female) without laryngeal pathology. The speech sample included /a/, /e/, /i/, /o/, /u/ of Korean oral vowels. The spectrum of each vowel was analysed by Nasal View and Real Analysis Program using Dr. Speech. The result showed that nasal intensity is decreased manifestly from F1 to F2. But oral intensity and Intensity is decreased little bit from F1 to F2. The most of values of nasal formant frequency is similarity oral formant frequency and Formant frequency or little bit smaller.

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