An improved spectral subtraction method for speech enhancement using a perceptual weighting filter

被引：42
|
作者：
Udrea, Radu Mihnea [1 ]
Vizireanu, Nicolae D. [1 ]
Ciochina, Silviu [1 ]
机构：
[1] Univ Politehn Bucuresti, Dept Telecommun, Fac Elect Telecommun & Informat Technol, Bucharest, Romania
来源：
DIGITAL SIGNAL PROCESSING | 2008年 / 18卷 / 04期
关键词：
speech enhancement; spectral subtraction;
D O I：
10.1016/j.dsp.2007.08.002
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We propose an improved spectral subtraction method for reducing acoustic noise added to speech in noisy environments like helicopter cockpit or car engine. This implementation uses oversubtraction method for spectral subtraction. Residual noise can be masked by exploiting the masking properties of the human auditory system. A psychoacoustically motivated weighting filter was included to eliminate residual musical noise. Simulations showed a better quality with no distortion for the enhanced speech and the musical noise was effectively masked. (C) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：581 / 587
页数：7
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