Speech Signal Compression Using Wavelet AndLinear Predictive Coding

A new algorithm is proposed to compress speech signals using wavelet transform and linear predictive coding. Signal compression based on the concept of selecting a small number of approximation coefficients after they are compressed by the wavelet decomposition (Haar and db4) at a suitable chosen le...

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Autores principales:	Ahlam Hanoon, Dr. Tarik Zeyad
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2005
Materias:	Wavelet Speech Coding Linear Predictive Coding Levinson Durbin. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/b9a1fb3af6ee437fb22244476b0252a8
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id	oai:doaj.org-article:b9a1fb3af6ee437fb22244476b0252a8
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spelling	oai:doaj.org-article:b9a1fb3af6ee437fb22244476b0252a82021-12-02T07:01:27ZSpeech Signal Compression Using Wavelet AndLinear Predictive Coding1818-1171https://doaj.org/article/b9a1fb3af6ee437fb22244476b0252a82005-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=2250https://doaj.org/toc/1818-1171A new algorithm is proposed to compress speech signals using wavelet transform and linear predictive coding. Signal compression based on the concept of selecting a small number of approximation coefficients after they are compressed by the wavelet decomposition (Haar and db4) at a suitable chosen level and ignored details coefficients, and then approximation coefficients are windowed by a rectangular window and fed to the linear predictor. Levinson Durbin algorithm is used to compute LP coefficients, reflection coefficients and predictor error. The compress files contain LP coefficients and previous sample. These files are very small in size compared to the size of the original signals. Compression ratio is calculated from the size of the compressed signal relative to the size of the uncompressed signal. The proposed algorithms where fulfilled with the use of Matlab package.Ahlam HanoonDr. Tarik ZeyadAl-Khwarizmi College of Engineering – University of BaghdadarticleWaveletSpeech CodingLinear Predictive CodingLevinson Durbin.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 1, Iss 1, Pp 52-60 (2005)
institution	DOAJ
collection	DOAJ
language	EN
topic	Wavelet Speech Coding Linear Predictive Coding Levinson Durbin. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Wavelet Speech Coding Linear Predictive Coding Levinson Durbin. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Ahlam Hanoon Dr. Tarik Zeyad Speech Signal Compression Using Wavelet AndLinear Predictive Coding
description	A new algorithm is proposed to compress speech signals using wavelet transform and linear predictive coding. Signal compression based on the concept of selecting a small number of approximation coefficients after they are compressed by the wavelet decomposition (Haar and db4) at a suitable chosen level and ignored details coefficients, and then approximation coefficients are windowed by a rectangular window and fed to the linear predictor. Levinson Durbin algorithm is used to compute LP coefficients, reflection coefficients and predictor error. The compress files contain LP coefficients and previous sample. These files are very small in size compared to the size of the original signals. Compression ratio is calculated from the size of the compressed signal relative to the size of the uncompressed signal. The proposed algorithms where fulfilled with the use of Matlab package.
format	article
author	Ahlam Hanoon Dr. Tarik Zeyad
author_facet	Ahlam Hanoon Dr. Tarik Zeyad
author_sort	Ahlam Hanoon
title	Speech Signal Compression Using Wavelet AndLinear Predictive Coding
title_short	Speech Signal Compression Using Wavelet AndLinear Predictive Coding
title_full	Speech Signal Compression Using Wavelet AndLinear Predictive Coding
title_fullStr	Speech Signal Compression Using Wavelet AndLinear Predictive Coding
title_full_unstemmed	Speech Signal Compression Using Wavelet AndLinear Predictive Coding
title_sort	speech signal compression using wavelet andlinear predictive coding
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2005
url	https://doaj.org/article/b9a1fb3af6ee437fb22244476b0252a8
work_keys_str_mv	AT ahlamhanoon speechsignalcompressionusingwaveletandlinearpredictivecoding AT drtarikzeyad speechsignalcompressionusingwaveletandlinearpredictivecoding
_version_	1718399657339518976

Speech Signal Compression Using Wavelet AndLinear Predictive Coding

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