Abstract: Base 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 between 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 showed good performance.

摘要： 本文在大量语音分析实验的基础上，提出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，本方法取得了较好的效果。