Pronunciation function evaluation system based on array surface electromyography

Abstract

The invention belongs to the technical field of pronunciation evaluation, and particularly relates to a pronunciation function evaluation system based on array surface electromyography. The system comprises a lower computer and an upper computer. The lower computer is used for acquiring a faciocervical myoelectric signal in the pronunciation process through an array type electromyography electrodeand transmitting the faciocervical myoelectric signal to the upper computer; the upper computer is used for analyzing the physiological correlation between the faciocervical array type myoelectric signal change characteristic and the pronunciation function during the pronunciation process to establish a three-dimensional dynamic energy distribution map of faciocervical muscle movement in the pronunciation process, obtain the dynamic visualization time and space information of a pronunciation muscle group, extract myoelectric characteristic values, establish a standardized database of faciocervical myoelectric characteristic distribution of a normal pronunciation function and adopt a template matching and differentiation analysis algorithm to analyze the function abnormality and the degreeof damage of the pronunciation muscle group. The electrophysiological characteristics of the pronunciation muscle group in the pronunciation process are analyzed more comprehensively and objectivelyto achieve real-time objective accurate evaluation of the pronunciation function.

Description

technical field [0001] The invention belongs to the technical field of pronunciation evaluation, in particular to a pronunciation function evaluation system based on arrayed surface electromyography. Background technique [0002] Speech is an important tool for human information exchange. It contains information such as people's feelings and emotions, and is an important manifestation of social communication ability. Voice communication is the basic function of human social survival, and the ability to make a sound without loss is the key to expressing one's emotions. When pronouncing, the airflow from the lungs passes through the larynx, and the muscles contract to make the cartilage move, and at the same time drive the vocal cords to relax or tighten, and the glottis opens or closes accordingly, thus producing sound. The difference in the pitch of the voice is caused by controlling the tightness of the vocal cords. The pitch is determined by the length, tension, mass and...

AI Technical Summary

Problems solved by technology

[0007] In view of this, the embodiment of the present invention provides a pronunciation function evaluation system based on arrayed surface electromyography to solve the lack of early and accurate

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