基于HMM的普通话单字发音准确度评价方法研究  

Study of assessment of mandarin pronouncing accuracy based on continuous Gaussian mixture HMM

作　　者：戚建宇[1] 赵鹤鸣[1] 何松[1] 

机构地区：[1]苏州大学电子信息学院,江苏苏州215021

出　　处：《计算机工程与应用》2007年第7期224-226,229,共4页Computer Engineering and Applications

基　　金：国家自然科学基金(the National Natural Science Foundation of China under Grant No.60572076)

摘　　要：在大量语音分析实验的基础上,提出了一种普通话单字发音准确度计算辅助评价方法。细化声韵母,对反映普通话发音准确度的声韵过渡段建立连续高斯混合密度HMM的普通话发音标准度评价系统。在语音特征上采取了符合人耳听觉特征的Mel倒谱。最后结合基音特征,完成客观特征到主观评价的映射。实验证明,该方法取得了较好的效果。Based on a large amount of speech study and experiments,this paper gives a new method of computer aided assessment of mandarin pronouncing accuracy.By dividing consonant and vowel of Chinese syllable,we establish a speech distinction system of Chinese pronouncing accuracy using the continuous Gaussian mixture HMM.At last,adding the pitch to finish mapping from the characteristics to the mean opinion score.The experimental results show good performance.

关 键 词：连续高斯混合密度HMM Mel倒谱 发音准确度 计算机评价 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]