Method and system for evaluating Chinese mandarin retroflex suffixation pronunciation quality

Abstract

The invention discloses a method and a system for evaluating Chinese mandarin retroflex suffixation pronunciation quality and relates to a pronunciation evaluating method and a pronunciation evaluating system. On the basis of the existing pronunciation quality evaluating methods, pronunciation space of standard Chinese initials and finals is expanded to allow the Chinese initials and finals to include all retroflex finals so as to build a expanded Chinese initial and final model including the retroflex finals, and larger-range pronunciation quality evaluation is performed in the expanded pronunciation space including the retroflex finals; and during pronunciation quality evaluation in the expanded pronunciation space including the retroflex finals, retroflex suffixation pronunciation quality evaluation is converted into retroflex suffixation pronunciation quality categorization to build a retroflex suffixation pronunciation quality categorization model, retroflex suffixation pronunciation quality grade is obtained by extracting acoustic features, linguistic features, statistical features and dynamic change features of retroflex suffixation and syllables followed by the retroflex suffixation, retroflex suffixation pronunciation quality evaluation is completed, and accuracy of Chinese mandarin retroflex suffixation pronunciation quality evaluation can be increased effectively.

Description

technical field [0001] The invention relates to a speech evaluation method and evaluation system, in particular to a pronunciation quality evaluation method and evaluation system of the Erhua sound in Mandarin Chinese. Background technique [0002] In the current assessment methods of the pronunciation quality of Mandarin Chinese, it generally only involves the assessment of the pronunciation quality of the initials, finals and tones of Mandarin Chinese, but there is no relevant research on the pronunciation quality assessment of special sound changes such as Erhuayin. [0003] Erhua is a characteristic sound change phenomenon in spoken Chinese Mandarin, which is mainly derived from the change of the word ending "er". The word ending "er" is originally an independent syllable, and the sound changes when it is read fluently with the previous syllable for a long time. The finals in the syllables change more or less, such as "old man" and "flower". Erhua is also a very import...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem that when the existing pronunciation quality evaluation method is used to evaluate the pronunciation quality of Erhuayin, there is model confusion between the Erhua final, the original final, and the "er" syllable, and the actual effect is not ideal. The present invention provides a An Effective Pronunciation Quality Evaluation Method and System for Erhuayin in Mandarin Chinese

Images