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166196

Speech Coding in the Sequency Domain.

Article

Last updated: 22 Jan 2023

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Subjects

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Tags

Electronics and Communications Engineering

Abstract

 Digital transmission of speech presents the opportunity to provide a more secure and bandwidth efficient service with a consistent quality. The feasibility and cost efficiency of future systems depends largely on the availability of low bit rate vocoders. Orthogonal transformations offer a means for reduction of the bit rate necessary for the transmission of speech signals. The ability to reduce the bit rate resides in the fact that the variance of the orthogonal function coefficients is far less than the variance of the speech itself. 
Discrete Walsh and Haar transforms are examined for their capacity to reduce the bit rate necessary to transmit speech signals. The performance of these transforms when applied to bit rate reduction has been measured in a mean square error sense (signal-to-noise  ratio). High quality speech reproduction is obtained at bit rate of 24 Kbps.

DOI

10.21608/bfemu.2021.166196

Authors

First Name

Fayez

Last Name

Soliman

MiddleName

Wanis Zaki

Affiliation

Associate Professor., Electronics and Communications Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura.,Egypt.

Email

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City

Mansoura

Orcid

-

Volume

18

Article Issue

4

Related Issue

24036

Issue Date

1993-12-01

Receive Date

1993-10-11

Publish Date

2021-12-01

Page Start

18

Page End

30

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 18_Issue 4_Pages 18-30.pdf

PDF . 421.3kB

Link

https://bfemu.journals.ekb.eg/article_166196.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=166196

Order

5

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

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Details

Type

Article

Created At

22 Jan 2023