DocumentCode
1352490
Title
Adaptive line echo cancellation combined with CVSD speech coders
Author
Lee, J.H. ; Park, Y.C. ; Youn, D.H.
Author_Institution
Dept. of Electr. & Comput. Eng., Yonsei Univ., Seoul, South Korea
Volume
36
Issue
11
fYear
2000
fDate
5/25/2000 12:00:00 AM
Firstpage
994
Lastpage
996
Abstract
An efficient method for controlling the echo in a continuously variable slope delta modulation (CVSD) mobile communication channel is proposed. By utilising the symmetry of the coder pairs, the proposed method shortens the echo path length and reduces the nonlinear distortion inherent in the coders. An additional advantage for the VLSI implementation is obtained using the combined bit-stream. The proposed method shows an improved echo return loss enhancement (ERLE) performance and reduced complexity compared to the conventional method.
Keywords
speech coding; CVSD speech coders; ERLE performance; VLSI implementation; adaptive line echo cancellation; combined bit-stream; complexity reduction; continuously variable slope delta modulation; echo control; echo path length reduction; echo return loss enhancement; mobile communication channel; nonlinear distortion;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20000697
Filename
849017
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