Voice evaluating method and device based on pronunciation rhythms
A technology of pronunciation and rhythm, which is applied in the field of pronunciation evaluation method and device based on pronunciation rhythm, which can solve the problems of not being able to satisfy students, not being able to find students' Chinese pronunciation rhythm errors in time, and limited teaching resources.
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[0102] Existing studies have shown that the rhythm of spoken pronunciation of second language learners is often influenced by the rhythm of native speakers. In order to realize the automatic evaluation of rhythm and use it in computer-aided learning, we proposed our own method based on the existing research on speech rhythm, and made some achievements. First of all, through a lot of research, we selected speech feature parameters that are more distinguishable for different rhythmic languages. At the same time, based on the acoustic features of rhythm, we added the parameters proposed by ourselves in the research. Second, we use these parameters to establish the relevant acoustic model. We used the GMM model when realizing the recognition of different speech rhythms, and used the LDA model when realizing the automatic evaluation of the rhythm.
[0103] Among them, the rhythm feature parameters include %V, △V, rPVI, and nPVI.
[0104] %V: In a sentence, the proportion of the d...
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