Abstract
Laryngostrobography is a newly developed method whose purposes are easy visualization and quantitative analysis of vibrations of the vocal fold (V.V.F) synchronously with some voice-related signals (V.R.S) including the voice signal, EGG, subglottic pressure on laryngostroboscopy. The system employs the strobo-motion-analyzer The image of the V.V.F through the CCD videocamera on laryngostroboscopy is held to the 128 field image memories at real time and the aforermentioned three V.R.S synchronized to the trigger pulse of the laryngostroboscope are processed through the A/D converter simultaneously. These V.R.S are superimposed to the image of the V.V.F through the superimposer and displayed on the video-monitor and the CRT-display. Furthermore, the whole vibratory periods of the arbitrarily sectioned image of the vocal fold and the V.R.S synchronized to the each vibratory phase of the V.V.F are ordered in time series and superimposed as the single still image strobogram.
