利用逆滤波和相平面获取高自然声门波的研究  

Study of Improving the Quality of Glottal Flow Using Inverse Filtering and Phase Plane

作　　者：胡琼[1] 赵春宇[1] 

机构地区：[1]上海交通大学电子信息与电气工程学院,上海200240

出　　处：《电声技术》2011年第5期59-63,73,共6页Audio Engineering

摘　　要：利用迭代自适应逆滤波的方法对传声器提取的声音信号进行了逆滤波,滤除了语音信号的共振信息,并在不借助其他设备的情况下利用声门波在相平面的图形和相应参数来评估和改善声门波的质量。通过实验表明由这种方法得到的声门波合成出的语音有很高的自然度,可以直接作为语音合成浊音的激励源,为后期结合统计学语音合成提供了基础。Using the iterative adaptive inverse filtering, the effects of vocal tract and lip radiation from the signal taken from high quality microphone are removed in this paper. In addition, through the figures and the corresponding in phase plane, the quality of the glottal flow without other facility is estimated and improved. The experiment at last also presents that the glottal flow used by this way can be directly served as acoustic excitation for speech synthesis using statistics due to the high naturalness.

关 键 词：逆滤波 相平面 声门波 IAIF 语音合成 

分 类 号：TN912.33[电子电信—通信与信息系统]