Titze I R, Schmidt S S, Titze M R
Department of Speech Pathology and Audiology, University of Iowa, Iowa City 52242, USA.
J Acoust Soc Am. 1995 May;97(5 Pt 1):3080-4. doi: 10.1121/1.411870.
The vocal fold mucosa, which consists of the epithelium and the superficial layer of the lamina propria, has been modeled by a fluid encapsulated in a silicone membrane. The artificial mucosa was attached to a rigid (metal) vocal fold body and introduced into an airflow channel, creating a rectangular glottis. Flow-induced oscillation of the mucosa was achieved at various subglottal pressures and glottal diameters. Phonation threshold pressure, the parameter of interest, was lowest (on the order of 0.4 kPa) for glottal diameters between 0.0 and 0.1 mm and for fluids with the lowest viscosity. There was a consistent hysteresis effect; that is, phonation threshold pressure was always lower for oscillation offset than onset.
声带黏膜由上皮和固有层浅层组成，已通过封装在硅树脂膜中的流体进行建模。人工黏膜附着在刚性（金属）声带主体上，并引入气流通道，形成矩形声门。在不同的声门下压力和声门直径下实现了黏膜的流致振荡。感兴趣的参数——发声阈压力，在声门直径为0.0至0.1毫米之间以及对于粘度最低的流体时最低（约为0.4千帕）。存在一致的滞后效应；也就是说，振荡偏移时的发声阈压力总是低于起始时的发声阈压力。
