Compressive sensing based low bit rate speech encoder

Speech coding is a representation of a digitized speech signal using as few bits as possible, while maintaining reasonable level of speech quality. Due to growing need for bandwidth conservation in wireless communication, the research in speech coding has increased. Compressive Sensing (CS) is gaini...

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Main Authors:	Kassim, L.A., Khalifa, Othman Omran, Gunawan, Teddy Surya
Format:	Conference or Workshop Item
Language:	English
Published:	2012
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://irep.iium.edu.my/28886/ http://irep.iium.edu.my/28886/ http://irep.iium.edu.my/28886/1/Comprehensive_sensing.pdf

id	iium-28886
recordtype	eprints
spelling	iium-288862013-03-14T02:51:26Z http://irep.iium.edu.my/28886/ Compressive sensing based low bit rate speech encoder Kassim, L.A. Khalifa, Othman Omran Gunawan, Teddy Surya TA Engineering (General). Civil engineering (General) Speech coding is a representation of a digitized speech signal using as few bits as possible, while maintaining reasonable level of speech quality. Due to growing need for bandwidth conservation in wireless communication, the research in speech coding has increased. Compressive Sensing (CS) is gaining a great interest because of its ability to recover original signals by taking only few measurements. CS is a new approach that is different from the common data acquisition methods. In this research, a new approach of speech encoding system is developed using compressive sensing. Since CS performs well in sparse signals, different sparsifying transforms is analyzed and compared using Gini coefficient. The quality of the speech coder is evaluated using Perceptual Evaluation of Speech Quality (PESQ), Signal-to-Noise Ratio (SNR) and subjective listening tests. Results show that the speech coders have achieved a PESQ score of 3.16 at 4 kbps which is a good quality as listening tests confirms. The coder is also compared with Code Excited Linear Prediction (CELP) coder. 2012 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/28886/1/Comprehensive_sensing.pdf Kassim, L.A. and Khalifa, Othman Omran and Gunawan, Teddy Surya (2012) Compressive sensing based low bit rate speech encoder. In: International Conference on Computer and Communication Engineering, ICCCE 2012, 3-5 July 2012, Kuala Lumpur. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?reload=true&arnumber=6271201&contentType=Conference+Publications
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Kassim, L.A. Khalifa, Othman Omran Gunawan, Teddy Surya Compressive sensing based low bit rate speech encoder
description	Speech coding is a representation of a digitized speech signal using as few bits as possible, while maintaining reasonable level of speech quality. Due to growing need for bandwidth conservation in wireless communication, the research in speech coding has increased. Compressive Sensing (CS) is gaining a great interest because of its ability to recover original signals by taking only few measurements. CS is a new approach that is different from the common data acquisition methods. In this research, a new approach of speech encoding system is developed using compressive sensing. Since CS performs well in sparse signals, different sparsifying transforms is analyzed and compared using Gini coefficient. The quality of the speech coder is evaluated using Perceptual Evaluation of Speech Quality (PESQ), Signal-to-Noise Ratio (SNR) and subjective listening tests. Results show that the speech coders have achieved a PESQ score of 3.16 at 4 kbps which is a good quality as listening tests confirms. The coder is also compared with Code Excited Linear Prediction (CELP) coder.
format	Conference or Workshop Item
author	Kassim, L.A. Khalifa, Othman Omran Gunawan, Teddy Surya
author_facet	Kassim, L.A. Khalifa, Othman Omran Gunawan, Teddy Surya
author_sort	Kassim, L.A.
title	Compressive sensing based low bit rate speech encoder
title_short	Compressive sensing based low bit rate speech encoder
title_full	Compressive sensing based low bit rate speech encoder
title_fullStr	Compressive sensing based low bit rate speech encoder
title_full_unstemmed	Compressive sensing based low bit rate speech encoder
title_sort	compressive sensing based low bit rate speech encoder
publishDate	2012
url	http://irep.iium.edu.my/28886/ http://irep.iium.edu.my/28886/ http://irep.iium.edu.my/28886/1/Comprehensive_sensing.pdf
first_indexed	2023-09-18T20:42:26Z
last_indexed	2023-09-18T20:42:26Z
_version_	1777409454469283840

Compressive sensing based low bit rate speech encoder

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