Device for simulating human vocal cord vibration and implementation method thereof

Abstract

The invention discloses a device for simulating human vocal cord vibration. The device comprises a vocal cord model channel, a vocal cord model, a frequency conversion device, a vacuum pump, an air measurement system, a vibration measurement system, a particle picture speed measurement system, a data acquisition card and a computer, wherein the frequency conversion device is connected with the vacuum pump, and the vacuum pump is arranged at one end of the vocal cord model channel; the air measurement system and the vibration measurement system are arranged on the vocal cord model channel, and output ends of the air measurement system and the vibration measurement system are both connected with the data acquisition card; and the data acquisition card is connected with the computer. A method for simulating the human vocal-cord vibration by using a physical model is designed by the invention; and an emulational vocal cord is simulated by adopting a spring-mass block-damping model theory, and a particle picture speed measurement device is induced, which provides a support for researching and establishing a relation between the vocal cord and a sound production parameter. The method can be used for providing a support for medical researches of vocal cord vibration characteristics and the like under different sound production conditions and different pathological change conditions.

Description

technical field [0001] The invention belongs to the field of physical model bionics, and particularly designs a method for realizing a device for simulating human vocal cord vibration. Background technique [0002] The vocal cords of the human body are difficult to invade, and the entire process of vocal cord production cannot be vividly measured. In the prior art, the method of directly measuring the isolated human or animal larynx is used. This method can achieve ideal measurement under experimental conditions, but there are also many limitations, such as the complexity of the experimental device, the irreproducibility of the measurement and the ethical question. Therefore, people often use physical models with easy-to-control parameters to conduct experiments. If the physical model can reflect some characteristics of the real vocal cords, then these parameters can help humans understand some basic physical processes of vocalization. [0003] In 1968, Flanigan and Landgr...

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Problems solved by technology

[0005] The present invention overcomes the defects of complex human vocal cord measurement system in the prior art, incapable of multi-point, non-contact, reproducible measurement, and large measurement interference, and proposes a device for simulating human vocal cord vibration and its realization method

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