Codebook excited linear predictive coding

In standard Codebook Exited Linear Coding (CELP) the encoding method uses random values for excitation vectors. The excitation is modelled by the codebook. Each time a segment of speech is encoded and an excitation vector is matched to minimise the error between original and encoded signal to maint...

Full description

Bibliographic Details
Main Authors:	Shah, Asadullah, Shaikh, Muniba
Format:	Book Chapter
Language:	English
Published:	IIUM Press 2011
Subjects:	TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
Online Access:	http://irep.iium.edu.my/29350/ http://irep.iium.edu.my/29350/ http://irep.iium.edu.my/29350/1/Codebook_Excited_Linear.pdf

id	iium-29350
recordtype	eprints
spelling	iium-293502013-03-02T07:20:55Z http://irep.iium.edu.my/29350/ Codebook excited linear predictive coding Shah, Asadullah Shaikh, Muniba TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices In standard Codebook Exited Linear Coding (CELP) the encoding method uses random values for excitation vectors. The excitation is modelled by the codebook. Each time a segment of speech is encoded and an excitation vector is matched to minimise the error between original and encoded signal to maintain quality of speech. This chapter narrates the CELP encoding algorithm. The conceptual block diagram of twoO time varying filters and a Gaussian codebook shown in figures, fc encoder and decoder respectively. This simplified block diagram mainly consists ofthree blocks, Short-Term Prediction, Long-Term Prediction and a random code-book. The parameters of these predictors SIP, LIP and the codebook are optimised and estimated in many ways. If these estimated parameters are accurate, the synthesized speech \vilI sound the same as original speech. Because ofthe limitations ofthe coding build blocks the estimated filter parameters case as the estimation errors in a result speech quality suffers degradations. The standard CELP algorithm explained gradually as follows and its block diagram shown in figure IIUM Press 2011 Book Chapter PeerReviewed application/pdf en http://irep.iium.edu.my/29350/1/Codebook_Excited_Linear.pdf Shah, Asadullah and Shaikh, Muniba (2011) Codebook excited linear predictive coding. In: Statistical Time Division Multiplexing Architectures and Design. IIUM Press, Kuala Lumpur, pp. 18-21. ISBN 978-967-418-190-1 http://rms.research.iium.edu.my/bookstore/default.aspx
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices
spellingShingle	TK7800 Electronics. Computer engineering. Computer hardware. Photoelectronic devices Shah, Asadullah Shaikh, Muniba Codebook excited linear predictive coding
description	In standard Codebook Exited Linear Coding (CELP) the encoding method uses random values for excitation vectors. The excitation is modelled by the codebook. Each time a segment of speech is encoded and an excitation vector is matched to minimise the error between original and encoded signal to maintain quality of speech. This chapter narrates the CELP encoding algorithm. The conceptual block diagram of twoO time varying filters and a Gaussian codebook shown in figures, fc encoder and decoder respectively. This simplified block diagram mainly consists ofthree blocks, Short-Term Prediction, Long-Term Prediction and a random code-book. The parameters of these predictors SIP, LIP and the codebook are optimised and estimated in many ways. If these estimated parameters are accurate, the synthesized speech \vilI sound the same as original speech. Because ofthe limitations ofthe coding build blocks the estimated filter parameters case as the estimation errors in a result speech quality suffers degradations. The standard CELP algorithm explained gradually as follows and its block diagram shown in figure
format	Book Chapter
author	Shah, Asadullah Shaikh, Muniba
author_facet	Shah, Asadullah Shaikh, Muniba
author_sort	Shah, Asadullah
title	Codebook excited linear predictive coding
title_short	Codebook excited linear predictive coding
title_full	Codebook excited linear predictive coding
title_fullStr	Codebook excited linear predictive coding
title_full_unstemmed	Codebook excited linear predictive coding
title_sort	codebook excited linear predictive coding
publisher	IIUM Press
publishDate	2011
url	http://irep.iium.edu.my/29350/ http://irep.iium.edu.my/29350/ http://irep.iium.edu.my/29350/1/Codebook_Excited_Linear.pdf
first_indexed	2023-09-18T20:43:04Z
last_indexed	2023-09-18T20:43:04Z
_version_	1777409494145302528

Codebook excited linear predictive coding

Similar Items