推定された母音声道面積関数の多変量解析

スポンサーリンク

概要

• 論文の詳細を見る

• A method of representing Japanese vowels is proposed based on the Principal Component Analysis of the estimated vocal tract area functions. The vocal tract area functions are estimated by an adaptive inverse filtering method and normalized assuming that the volume of the vocal tract is constant. The experimental results are summarized as follows. In case the analysis is limited to single vowels from a group of male speakers, the cumulative contribution rate for the first 3 vectors reaches 92. 3%. in this dimensionality each axis corresponds to the articulatory structures of the vowels and the separation among vowel groups is completed. Then the variations of the area functions of single vowels can be represented by a linear model of 3-dimensions. The linearity of the variations holds also for the vowels uttered continuously. When a difference in the vocal tract length between males and females is taken into account, the cumulative contribution rate of vocal tract variations reaches 91. 2% in the first four principal axis, and the separation of vowels is completed also in this dimensionality. When the child's vocal tract functions are considered together with those adult materials, the dimensionality of the variations is the same as those in the case of the group of males and females. Then the variations of the vocal tract functions with extreme differences in the vocal tract length can be represented by a linear model of 4-dimensions.

• 社団法人日本音響学会の論文
• 1978-11-01

著者

• 太田 耕三

  電子技術総合研究所

関連論文

• 逆対称声道関数と母音特徴抽出
• Estimated Values of the Vocal Tract Crosssectional Area Functions-1-
• 座談会 : 音声研究 (音声研究)
• 音声の音響音声的変動パターンの類型化 : データベースと生成領域からの類推の利用 : 視聴覚技術 : 聴覚、音声関係および一般
• 音声の変動記述のための知識ベースについて
• 音声の音素片ネットワーク表現と時系列のセグメント化法を用いた自動ラベリング手法
• 推定された母音声道面積関数の多変量解析
• 声道断面積関数の多変量解析による調音運動の線形表現

スポンサーリンク