EMA-based articulation disorder Chinese assessment method

A technology for dysphonia and Chinese, applied in instruments, data processing applications, calculations, etc., can solve problems such as neglecting patients, and achieve the effect of improving accuracy and accurate evaluation

Inactive Publication Date: 2016-11-23
TAIYUAN UNIV OF TECH
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Problems solved by technology

However, only the evaluation of acoustic characteristics ignores the defects of the patient itself.

Method used

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Embodiment Construction

[0014] The present invention uses the Windows7 system as the operating environment, and MATLAB R2010b as the data processing platform. Here's how to do it:

[0015] Step 1. Determine the test corpus according to different types of dysphonia, select the test corpus to follow the characteristics and rules of Chinese pronunciation, and adjust the test corpus according to different types of dysphonia. There are one or more test corpora, and each test corpus is based on The standard for the combination of initials and finals in Chinese Pinyin, all combinations of an initial and all finals that can be pronounced in combination with the initial, this embodiment is used to evaluate patients with tongue lift disorders, because the tongue cannot be lifted normally to touch the soft palate and Upper teeth, resulting in inaccurate pronunciation of some initials, such as / l / , / d / , / t / , / s / , / ch / , etc. In this embodiment, the test corpus is selected as the initial consonants / d / , / l / , / ch / ...

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Abstract

The invention relates to the technical field of pronunciation assessment, in particular to the technical field of EMA-based dysphonia assessment. An EMA-based Chinese evaluation method for dysphonia. The test corpus is determined according to different types of dysphonia. The Euclidean distance of the tongue tip of normal people, the distance of lip opening and closing of normal people, the duration of normal people, and the slope of the formant locus equation of normal people’s pronunciation A standard database was established for the parameters, and the Euclidean distance of the patient's tongue tip, the distance between the opening and closing of the lips of the patient, the duration of the patient, and the slope of the patient's pronunciation formant trajectory equation were used as comparison parameters, and the concept of fuzzy membership function was used to judge the defect degree of the dysphonia patients. The invention integrates dynamic and acoustic information, can more accurately evaluate patients with dysphonia comprehensively, and provides theoretical basis and technical support for pathological research.

Description

technical field [0001] The invention relates to the technical field of pronunciation assessment, in particular to the technical field of EMA-based dysphonia assessment. Background technique [0002] The evaluation of dysphonia is mostly through the analysis of acoustic signals, with normal people as the reference system, to study the differences and make assessments. Commonly used methods include formant extraction comparison, duration comparison, and accuracy comparison of vowels and consonants. Most of the subjects' mother tongue is English, and there are few studies on the pronunciation of Chinese and Chinese. [0003] In the document "Automatic Evaluation of Articulatory Disorders in Parkinson's Disease", the author Michal Novotný et al proposed a method for evaluating the pronunciation defects of patients with Parkinson's disease, which is based on the automatic assessment of pronunciation characteristics through acoustic methods. The experiment recruited 24 patients ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/22
CPCG06Q50/22
Inventor 薛珮芸张雪英白静
Owner TAIYUAN UNIV OF TECH
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