Integrated speech enhancement and coding in the time-frequency domain

被引：0
|
作者：
Drygajlo, A
Carnero, B
机构：
来源：
1997 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, VOLS I - V: VOL I: PLENARY, EXPERT SUMMARIES, SPECIAL, AUDIO, UNDERWATER ACOUSTICS, VLSI; VOL II: SPEECH PROCESSING; VOL III: SPEECH PROCESSING, DIGITAL SIGNAL PROCESSING; VOL IV: MULTIDIMENSIONAL SIGNAL PROCESSING, NEURAL NETWORKS - VOL V: STATISTICAL SIGNAL AND ARRAY PROCESSING, APPLICATIONS | 1997年
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D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper addresses the problem of merging speech enhancement and coding in the context of an auditory modeling. The noisy signal is first processed by a fast wavelet packet transform algorithm to obtain an auditory spectrum, from which a rough masking model is estimated. Then, this model is used to refine a subtractive-type enhancement algorithm. The enhanced speech coefficients are then encoded in the same time-frequency transform domain using masking threshold constraints for quantization noise. The advantage of the proposed method is that both enhancement and coding are performed with the transform coefficients, without making use of the additional FFT processing.
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页码：1183 / 1186
页数：4
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