Detail publikace

Design of recommendation G.722 audiocodec for ISDN application. International journal

ŠKORPIL, V. PROCHÁZKA, T.

Originální název

Design of recommendation G.722 audiocodec for ISDN application. International journal

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

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.

Klíčová slova

G.722, SB-ADPCM, Matlab

Autoři

ŠKORPIL, V.; PROCHÁZKA, T.

Rok RIV

2002

Vydáno

10. 12. 2002

ISSN

1213-161X

Periodikum

ElectronicsLetters.com - http://www.electronicsletters.com

Ročník

2002

Číslo

5/12/2002

Stát

Česká republika

Strany od

1

Strany do

10

Strany počet

10

URL

http://www.electronicletters.com

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",
  pages="10",
  issn="1213-161X",
  url="http://www.electronicletters.com"
}