口蓋裂患者における開鼻声の音響特徴と鼻咽腔閉鎖不全の関連について

DOI 機関リポジトリ 被引用文献1件 参考文献31件

書誌事項

タイトル別名
  • Astudy on the relationship between the acoustical analysis characteristic of the nasalized vowels and the velopharyngeahncompetence of the cleft palate patients.
  • ― MRI画像による鼻咽腔開放面積計測と Analysis-by-Synthesis 法による アンチフォルマント周波数の推定から ―
  • - On the magnetic resonance imagings of the velopharyngeal opening area and the estimation of antiformant frequencies by the Analysis-by-Synthesis method -

この論文をさがす

抄録

<p>We investigated the relationship between the acoustical characteristic of the nasalized vowels and the velopharyngeal incompetence (VPI) of cleft palate patients. Subjects were five male adult patients who had palatoplasty in their infancy. Cephalograms, digital recordings of Japanese vowels and magnetic resonance imaging (MRI) of head and neck were taken from sublects. MRrs were obtained while the patients pronounced single vowels nonnally. We employed the A-b-S (Analysis-by-Synthesis) method for the acoustical analysis of the / i / sound with our original software in a work station. The velopharyngeal opening areas were measured with a personal computer by using MRI’s of the velo-pharyngeal closure portion.The results showed that the antiformant frequencies were related to the velopharyngeal opening area, and the antiformant frequencies will be a useful index to VPI case. The acoustical estimation of the velopharyngeal opening area will apply to the training of speech improvement.However, to fully determine the relations between the antiformant frequencies and the velopharyngeal opening area, the followings are required, 1) measuring the entire area of the vocal tract including asymmetrical anomalous nasal passages and paranasal cavities, and 2) avoiding the artifact of MRI.</p>

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (31)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ