烟台大学学报（自然科学与工程版）2011，Vol.24Issue(4)：292-297,6.
跟踪共振峰的小波包语音增强仿真研究
Simulation of Wavelet Package Speech Enhancement Based on Tracing Formant
摘要
Abstract
We study and analyze the time-frequency characteristics of wavelet sub-band speech formant in the way of computer simulation experiments. It is obtained that every speech formant can be traced and found out in the sub-band. Combined with the human auditory perception, this paper presents a new algorithm of wavelet package threshold speech enhancement based on tracing the formant. The new algorithm can fit human auditory , closely trace the energy change of speech signal, and reduce the damage of weak speech signal through the adaptive adjustment of threshold coefficient. The simulation results show that the proposed algorithm is more effective than traditional algorithm for low signal-to-noise ratio input. It either removes noise as much as possible to improve the output SNR, or effectively reduce waveform distortion, and has a good sound effects.关键词
共振峰/听觉感知/自适应阈值/小波包分析Key words
formant/ auditory perception/ adaptive threshold/ wavelet packet analysis分类
信息技术与安全科学引用本文复制引用
田玉静,周立俭,左红伟..跟踪共振峰的小波包语音增强仿真研究[J].烟台大学学报（自然科学与工程版）,2011,24(4):292-297,6.基金项目
山东省高等学校科技计划资助项目(J09LG03). （J09LG03）
