单声部乐音信号的动态谐波调制方法  

Dynamic Harmonic Modulation of the Monophonic Musical Signal

作　　者：郭天艺 孟子厚[1] GUO Tianyi;MENG Zihou(Communiration Acoustics Lab of Communication University of China,Beijing 100024,China)

机构地区：[1]中国传媒大学传播声学研究所,北京100024

出　　处：《电声技术》2022年第2期33-37,45,共6页Audio Engineering

摘　　要：比较现有的几种乐音信号谐波调制算法,以频谱合成模型为基础,提出一种基于“瞬态+谐波+噪声”模型的优化算法。该算法结合了数字图像滤波方法以及乐音信号的谐波跟踪方法,在实现原始信号动态谐波调制的基础上,提高了瞬态成分的提取效率,优化了剩余噪声成分的合成听感。According to the analysis of classical harmonic modulation algorithms, an improved “transient + harmonic + noise” algorithm based on the spectrum synthesis model is proposed in this paper, which combines digital image processing methods with harmonic tracking methods of music signals. On the basis of dynamic harmonic modulation of original signals, the algorithm improves the extraction efficiency of transient components and optimize the synthesis sound quality of residual noise components.

关 键 词：乐音基频 频谱模型 乐音合成 主观听感 

分 类 号：TN912.3[电子电信—通信与信息系统]