Acoustic Model Fusion Method of British and American Compatible ModeProtocol
Wei Ping He · International Journal of Future Generation Communication and Networking · 2016
The British and American English are the most common target accents.British and American English have different phonetic symbol and pronunciation system.These two accents have many learners.And some learners have mixed phenomenon of British and American accent.Based on the mixed phenomenon British and American English accent for English learners, this paper put forwarder a model of American and British accent fusion method, improve the quality of the pronunciation evaluation performance system, and realize the embedded compressed acoustic model.This method divide acoustic model into alternative model, fusion model and encourage model by replace probability.The alternative model could be removed, and isolated model could be reserved.The fusion model could be merged based on model interpolation and model clip.Pronunciation quality evaluation results showed that the correlation of speaker level increased by 14.1%, compared with single accent model and in fusion model,; fusion model was similar to the performance of the hybrid model, the figure of gaussian component compressed by 10.7%.