Abstract
Glottal area function provides important information in clarifying physical mechanisms of vocal fold vibration and investigating voice qualities in a quantitative manner, whereas its estimation has been technically difficult. In this paper, estimation of glottal area function was conducted in vivo by stereo-endscopic measurement of the larynx combined with a high-speed digital imaging technique. In the present data from a female speaker, the high-speed camera captured images at an image resolution of 768 (horizontal)×352 (vertical) with a frame rate of 3750 fps for the sample duration of 10.12 s. Glottal length, width, and area of the female participant were estimated in three different fundamental frequencies (F0s).
