首页>
外国专利>
Assessing telephone connection speech quality involves classifying observation sequences using hidden Markov models, outputting model with maximum total emission probability
Assessing telephone connection speech quality involves classifying observation sequences using hidden Markov models, outputting model with maximum total emission probability
展开▼
机译:评估电话连接语音质量涉及使用隐马尔可夫模型对观察序列进行分类,并以最大的总发射概率输出模型
展开▼
页面导航
摘要
著录项
相似文献
摘要
The method involves comparing the original (reference) speech with a corresp. part of the transmitted speech. The digitized speech signal of the reference statement and the digitized speech signal of the transmitted statement are subjected to short-duration spectral analysis; the successive short-duration spectra are smoothed and subjected to energy normalization; the characteristic sequences of the reference and transmitted statements are brought into coincidence by synchronization and subtracted; and the resulting observation sequences are classified using several hidden Markov models, the model with the maximum total emission probability is determined and output as the assessment result.
展开▼