An experimental study of acoustic characteristics of hypopharyngeal cavities using vocal tract solid models
スポンサーリンク
概要
- 論文の詳細を見る
Solid models of the vocal tract with hypopharyngeal cavities were molded with a stereolithographic technique based on MRI data obtained from a male speaker during the production of Japanese vowels /a/ and /o/. A vowel synthesis experiment conducted with the models revealed a relatively good agreement in the second and third formants, as well as in anti-resonance at 4-5kHz. The elimination of the models' piriform fossa resulted in the disappearance of the anti-resonance and shifts of the adjacent formants. The modification of the laryngeal cavity into a uniform tube caused spectral changes in the frequency range of 1.5-7.0kHz. These acoustic effects of hypopharyngeal cavities were dependent on vocal tract shapes.
- 社団法人日本音響学会の論文
著者
-
HONDA Kiyoshi
ATR Human Information Science Laboratories
-
FUJITA Satoru
ATR Human Information Science Laboratories
-
Honda Kiyoshi
Atr Cognitive Information Science Laboratories
-
Honda Kiyoshi
Atr Human Information Processing Research Laboratories
関連論文
- A bone-conduction system for auditory stimulation in MRI
- Brain regions involved in motor control of speech
- Exploring Human Speech Production Mechanisms by MRI(Speech Dynamics by Ear, Eye, Mouth and Machine)
- Difference in vocal tract shape between upright and supine postures : Observations by an open-type MRI scanner
- MRI同期サンプル法による音声生成の研究
- Transfer functions of solid vocal-tract models constructed from ATR MRI database of Japanese vowel production
- A physiological articulatory model for simulating speech production process
- Investigation of coarticulation in continuous speech of Japanese
- Deformation of the hypopharyngeal cavities due to F_0 changes and its acoustic effects
- An experimental study of acoustic characteristics of hypopharyngeal cavities using vocal tract solid models
- Evolution of vowel production studies and observation techniques( THE VOWEL : From Chiba and Kajiyama to current issues)
- Individual variation of the hypopharyngeal cavities and its acoustic effects
- A method of tooth superimposition on MRI data for accurate measurement of vocal tract shape and dimensions