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ŠKORPIL, V. PROCHÁZKA, T.
Original Title
Design of recommendation G.722 audiocodec for ISDN application. International journal
Type
journal article - other
Language
English
Original Abstract
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.
Keywords
G.722, SB-ADPCM, Matlab
Authors
ŠKORPIL, V.; PROCHÁZKA, T.
RIV year
2002
Released
10. 12. 2002
ISBN
1213-161X
Periodical
ElectronicsLetters.com - http://www.electronicsletters.com
Year of study
Number
5/12/2002
State
Czech Republic
Pages from
1
Pages to
10
Pages count
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" }