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A Study on Performance Analysis of Tamil Speech Enhancement using Spectral Subtraction and Adaptive Techniques

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IJCA Proceedings on International Conference on Innovations in Computing Techniques (ICICT 2015)
© 2015 by IJCA Journal
ICICT 2015 - Number 2
Year of Publication: 2015
Authors:
J Indra
N. Kasthuri
S Navaneetha Krishnan

J Indra, N.kasthuri and Navaneetha S Krishnan. Article: A Study on Performance Analysis of Tamil Speech Enhancement using Spectral Subtraction and Adaptive Techniques. IJCA Proceedings on International Conference on Innovations in Computing Techniques (ICICT 2015) ICICT 2015(2):6-13, July 2015. Full text available. BibTeX

@article{key:article,
	author = {J Indra and N.kasthuri and S Navaneetha Krishnan},
	title = {Article: A Study on Performance Analysis of Tamil Speech Enhancement using Spectral Subtraction and Adaptive Techniques},
	journal = {IJCA Proceedings on International Conference on Innovations in Computing Techniques (ICICT 2015)},
	year = {2015},
	volume = {ICICT 2015},
	number = {2},
	pages = {6-13},
	month = {July},
	note = {Full text available}
}

Abstract

Speech is produced when air from the lungs passes through the throat, the vocal cords, the mouth and the nasal tract. Speech processing is the study of the speech signals and the processing methods of these signals. 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 need to enhance speech signal arises in many situations in which the speech signal originates from noisy locations. The aim of the proposed method is to reduce the background noise present in the Tamil speech signal by using spectral subtraction and adaptive techniques. There has been no such works or efforts in the past in the context of Tamil speech enhancement in the literatures. Fifty Tamil speeches are taken as sample speech from the Tamil database [1] [2]. Sample noises such as pink noise, white noise and Volvo noise are taken. By using the spectral subtraction techniques such as Non-Linear, Multiband and Minimum Mean Square Error spectral subtraction and adaptive techniques such as Least Mean Square and Recursive Least Square methods, enhanced Tamil speech is obtained. Performance of the above two techniques are compared based on their Signal to Noise Ratio and Log Spectral Distance.

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