【作者】 吕士楠； 周同春； 初敏； 陆亚民；

【Author】 Lu Shinan, Zhou Tongchun, Chu Min and Lu Yamin (Institute of Acoustics, Academia Sinica and Beijing NormalUniversity)

【机构】 中国科学院声学研究所； 北京师范大学；

【摘要】 汉语合成语音的自然度研究结果表明,影响自然度的主要因素有音高、音长和协同发音,其中以音高和音长的作用最显著。因此音高和音长控制是目前汉语合成系统最为关注的问题。在对汉语按朗读风格的语言材料分析的基础上,本文提出一个汉语文语转换系统的音高和音长控制模型。音高控制以词为单位,建立双字、三字和四字的不同声调组合的音高模式,按重、半重、正常和轻四级控制词调调域的变化。音长控制采用王晶、王理嘉的前长模式。更多还原

【Abstract】 The results of study on the naturalness of synthetic Chinese show that, the pitch, syllable duration and coarticuration occupy a basic position for improving the naturalness of synthetic Chinese. Therefore the pitch and duration modification should be a focus of attention in Chinese text to speech system. On the basis of the analysis of news broadcast, a model of the pitch and duration modification has been represented, in which the pitch contour was normalized for different Chinese words or phrases according to the number of syllables and the tone structure, and the pitch range of differentaccent level was suggested, some suggestions of duration modification made by Wang Jing was accepted更多还原