A New Speech Enhancement Algorithm Using Wavelet Packet Transform
A new algorithm for speech enhancement based on wavelet shriPnkage method is presented in this paper.First,the noisy speech by the Bark-scaled Wavelet Packet(BS-WPD) is decomposed to simulate the human auditory characteristics.Then a new thresholding algorithm Which has many advantages over SOft and hard thresholdings put forward bv D.L.Donoho and I.M.Johnstone is proposed.Simulation results indicate that this new method is verv useful and efficient in the process of white noise reduction from speech,and the new thresholding algorithm giyes better SNR improvement than other traditional thresholding algorithms.
sgeech Enhancement threshold Wavelet Packet SNR
Jichang Guo Wenliang Wang
国际会议
The International Conference Information Computing and Automation(2007国际信息计算与自动化会议)
成都
英文
504-506
2007-12-19（万方平台首次上网日期，不代表论文的发表时间）