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Abstract:
基于核Fisher判别(Kernel fisher discriminant,KFD)和加权码书映射(Weighted codebook mapping,WCBM),提出了一种MDCT(Modified discrete cosine transform)域的音频信号削波修复方法.首先根据音频信号的MDCT系数提取子带包络等四种削波特征参数;其次,利用这些特征参数训练检测音频信号出现削波的核Fisher分类器;最后,利用子带包络的WCBM来修复音频信号的削波.测试结果表明,本文所提方法能有效修复音频信号的削波,其性能优于现有的几种削波修复方法.
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Source :
数据采集与处理
ISSN: 1004-9037
Year: 2014
Issue: 2
Volume: 29
Page: 211-221
Cited Count:
WoS CC Cited Count: 11
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: 2
Chinese Cited Count:
30 Days PV: 16
Affiliated Colleges: