Detail publikace
Design of recommendation G.722 audiocodec for ISDN application.
ŠKORPIL, V. PROCHÁZKA, T.
Český název
Design of recommendation G.722 audiocodec for ISDN application.
Anglický název
Design of recommendation G.722 audiocodec for ISDN application. International journal
Typ
článek v časopise - ostatní, Jost
Jazyk
en
Originální abstrakt
Recommendation G.722 describes the potentials of encoding and decoding audio signals with 50-7000 Hz bandwidth using SB-ADPCM (Sub-Band Adaptive Differential Pulse Code Modulation). Thus a bit rate compression is accomplished. Utilization for ISDN, DECT and CT2 cordless phones and other applications is assumed. The paper gives the basic G.722 recommendation modes and the principles of SB-ADPCM encoder and decoder including theoretical equations and problem algorithmization theory. The simulation of G.722 codec is performed by the Matlab software. Examples of the testing signals passing through the designed codec are shown. In conclusion the results are discussed.
Český abstrakt
Recommendation G.722 describes the potentials of encoding and decoding audio signals with 50-7000 Hz bandwidth using SB-ADPCM (Sub-Band Adaptive Differential Pulse Code Modulation). Thus a bit rate compression is accomplished. Utilization for ISDN, DECT and CT2 cordless phones and other applications is assumed. The paper gives the basic G.722 recommendation modes and the principles of SB-ADPCM encoder and decoder including theoretical equations and problem algorithmization theory. The simulation of G.722 codec is performed by the Matlab software. Examples of the testing signals passing through the designed codec are shown. In conclusion the results are discussed.
Anglický abstrakt
Recommendation G.722 describes the potentials of encoding and decoding audio signals with 50-7000 Hz bandwidth using SB-ADPCM (Sub-Band Adaptive Differential Pulse Code Modulation). Thus a bit rate compression is accomplished. Utilization for ISDN, DECT and CT2 cordless phones and other applications is assumed. The paper gives the basic G.722 recommendation modes and the principles of SB-ADPCM encoder and decoder including theoretical equations and problem algorithmization theory. The simulation of G.722 codec is performed by the Matlab software. Examples of the testing signals passing through the designed codec are shown. In conclusion the results are discussed.
Klíčová slova česky
G.722, SB-ADPCM, Matlab
Klíčová slova anglicky
G.722, SB-ADPCM, Matlab
Rok RIV
2002
Vydáno
10.12.2002
ISSN
1213-161X
Časopis
ElectronicsLetters.com - http://www.electronicsletters.com
Ročník
2002
Číslo
5/12/2002
Počet stran
10
BIBTEX
@article{BUT40856,
author="Vladislav {Škorpil} and Tomáš {Procházka},
title="Design of recommendation G.722 audiocodec for ISDN application. International journal",
journal="ElectronicsLetters.com - http://www.electronicsletters.com",
year="2002",
volume="2002",
number="5/12/2002",
month="December",
issn="1213-161X"
}