| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 720778 | IFAC Proceedings Volumes | 2007 | 6 Pages |
Abstract
Speech Enhancement aims at denoising a noisy speech signal and to extract the clean speech. In this work, nonstationary periodic noise is regarded. The coefficient energy distribution of a period of noise is analyzed by a Period Wavelet Packet transform. This transform can analyze signals of arbitrary (non-dyadic) length. The estimated coefficient energy distribution can be used as a threshold for wavelet thresholding techniques. The efficiency of the algorithm and its sensitivity to period variations is evaluated.
Related Topics
Physical Sciences and Engineering
Engineering
Computational Mechanics
Authors
Thomas Weickert, Uwe Kiencke,