We propose a new approach to improve the performance of speech enhancement techniques based on wavelet thresholding. First, space-adaptation of the threshold is obtained by extending the principle of the level-dependent threshold to the Wavelet Packet Transform (WPT). Next, the time-adaptation is introduced using the Teager Energy Operator (TEO) of the wavelets coefficients. Finally, the time-space adapted threshold is proposed. Comparisons with the Ephraim and Malah Filter are reported.
Cite as: Bahoura, M., Rouat, J. (2001) A new approach for wavelet speech enhancement. Proc. 7th European Conference on Speech Communication and Technology (Eurospeech 2001), 1937-1940, doi: 10.21437/Eurospeech.2001-457
@inproceedings{bahoura01_eurospeech,
author={Mohammed Bahoura and Jean Rouat},
title={{A new approach for wavelet speech enhancement}},
year=2001,
booktitle={Proc. 7th European Conference on Speech Communication and Technology (Eurospeech 2001)},
pages={1937--1940},
doi={10.21437/Eurospeech.2001-457}
}