Videokymography: High-speed line scanning of vocal fold vibration

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      A digital technique for high-speed visualization of vibration, called videokymography, was developed and applied to the vocal folds. The system uses a modified video camera able to work in two modes: high-speed (nearly 8,000 images/s) and standard (50 images/s in CCIR norm). In the high-speed mode, the camera selects one active horizontal line (transverse to the glottis) from the whole laryngeal image. The successive line images are presented in real time on a commercial TV monitor, filling each video frame from top to bottom. The system makes it possible to observe left-right asymmetries, open quotient, propagation of mucosal waves, movement of the upper and, in the closing phase, the lower margins of the vocal folds, etc. The technique is suitable for further processing and quantification of recorded vibration.

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        • Hirano M
        • Bless DM
        Videostroboscopic examination of the larynx.
        Singular Publishing Group, San Diego1993
        • Švec JG
        • Schutte HK
        • Miller DG
        A subharmonic vibratory pattern in normal vocal folds.
        J Speech Hear Res. 1996; 39: 135-143
        • Gall V
        • Hanson J
        Bestimmung physikalischer Parameter der Stimmlippenschwingungen mit Hilfe der Larynxphotokymographie.
        Folia Phoniatr (Basel). 1973; 25: 450-459
        • Gross M
        Sprache-Stimme-Gehör. 1985; 9: 112-113
        • Farnsworth DW
        High-speed motion pictures of the human vocal cords.
        Bell Lab Record. 1940; 18: 203-208
        • Hirano M
        Clinical examination of voice.
        Springer-Verlag, Wien1981
        • Honda K
        • Kiritani S
        • Imagawa H
        • Hirose H
        High-speed digital recording of vocal fold vibrations using a solid-state image sensor.
        in: Baer T Sasaki C Harris KS Laryngeal function in phonation and respiration. Little, Brown and Co., Boston1987: 485-491
        • Kiritani S
        • Imagawa H
        • Hirose H
        High-speed digital image recording for the observation of vocal cord vibration.
        in: Fujimura O Vocal physiology: voice production, mechanisms, and functions. Raven Press, New York1988: 261-269
        • Hess MM
        • Gross M
        High-speed, light-intensified digital imaging of vocal fold vibrations in high optical resolution via indirect microlaryngoscopy.
        Ann Otol Rhinol Laryngol. 1993; 102: 502-507
        • Kiritani S
        • Hirose H
        • Imagawa H
        High-speed digital image recording system for observing vocal cord vibration.
        Ann Bull RILP (Tokyo). 1993; 27: 79-87
        • Hertegård S
        • Lindestad P-Å
        Vocal fold vibrations studied during phonations with high-speed video imaging.
        Karolinska Institute, Huddinge University Hospital Phoniatric and Logopedic Progress Report. 1994; 9: 33-40
        • Kiritani S
        • Niimi S
        • Imagawa H
        • Hirose H
        Vocal fold vibrations associated with involuntary voice changes in certain pathological cases.
        in: Fujimura O Hirano M Vocal fold physiology: voice quality control. Singular Publishing Group, San Diego1995: 269-281