Tamil Speech Enhancement Using Non-Linear Spectral Subtraction

被引:0
|
作者
Prabhakaran, G. [1 ]
Indra, J. [2 ]
Kasthuri, N. [2 ]
机构
[1] Kongu Engn Coll, Control & Instrumentat, Perundurai 638052, Tamil Nadu, India
[2] Kongu Engn Coll, Perundurai 638052, Tamil Nadu, India
关键词
Spectral Subtraction techniques (SS); Nonlinear Spectral Subtraction (NSS); Multiband Spectral Subtraction (MBSS); NOISE; SUPPRESSION;
D O I
暂无
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
Speech enhancement is a technique used to reduce the background noise present in the speech signal. It simply means the improvement in intelligibility and quality of degraded speech. The noises present in the speech signal are additive noise, echo, reverbration and speaker interference. The aim of the proposed method is to reduce the background noise present in the speech signal by using spectral subtraction techniques. The magnitude of the spectrum of estimated noise is subtracted from the spectrum of noisy speech signal. Five clean speeches are taken as sample speech. Sample noise such as pink noise, white noise and volvo noise are taken from database (TIMIT & NOIZEUS corpus). By using Non-linear spectral subtraction and Multiband spectral subtraction techniques, enhanced speech is obtained. Performance of the above two methods are compared based on the two parameters namely Signal to Noise Ratio and Log Spectral Distance.
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页数:4
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