摘要
利用了形态学的概念和方法对语音基音轨迹进行平滑滤波,在结构元素的选取方面进行了研究,并针对形态学滤波的特点提出了改进,使算法的精确性进一步提高,复杂性大大降低.实验结果表明,提出的方法对语音基音轨迹进行平滑滤波,在强制性平滑滤波的情况下,能够有效保留语音信号中的某些固有突变和破坏信号的细节特征,更好地达到平滑滤波的效果.
By introducing the concepts and methods of morphological to the pitch contrail smoothing, the paper discussed how to select structure element and proposed a improved algorithm based on the characteristics of morphological filter.This algorithm is more accurate and less complicated.The result also shows that the proposed method used to pitch contrail smoothing at compellent smoothing,it is effective to keep down some details and characters of inherent chops and destructive signals in speech signal,then the better smoothing effects can be obtained.
出处
《武汉理工大学学报（交通科学与工程版）》
2010年第5期1065-1068,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
关键词
基音轨迹平滑
形态学滤波
结构元素
基音轨迹
语音
pitch contrail smoothing
morphological filter
structure element
pitch contrail
speech
