New features for speech enhancement using bivariate shrinkage based on redundant wavelet filter-banks
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- 作者：Hamid Reza Tohidypoura ; htohidyp@ece.ubc.ca" class="auth_mail" title="E-mail the corresponding author ; Seyed Mohammad Ahadib
- 关键词：Wavelet transform ; Speech enhancement ; Redundant filter-banks ; Four channel double density discrete wavelet ; Three-channel higher density discrete wavelet ; Bivariate wavelet shrinkage ; Zero moments
- 刊名：Computer Speech & Language
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：35
- 期：Complete
- 页码：93-115
- 全文大小：3484 K
文摘
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There are some dependencies among wavelet coefficients.
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Bivariate shrinkage was proposed based on parent–child coefficients dependencies.
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Two-channel critically sampled filter-bank is not suitable for bivariate shrinkage.
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Multi-channel redundant wavelet filter-banks lead to better results.