DocumentCode
3007692
Title
Analysis and design of multirate systems for cancellation of acoustical echoes
Author
Kellermann, Walter
Author_Institution
Inst. fur Netzwerk- und Signaltheorie, Tech. Hochschule Darmstadt, West Germany
fYear
1988
fDate
11-14 Apr 1988
Firstpage
2570
Abstract
An analysis of the multirate concept for the echo cancellation problem is presented that results in the consideration of two classes of solutions. For the first class the solution is derived explicitly, whereas for the second class a general approach and a subclass are discussed. Regarding the application to the cancelling of acoustical echoes the design problem for the frequency-subband concept-which is shown to be a solution of the first class-is examined in more detail and results are presented verifying the efficiency of this method
Keywords
echo suppression; telephone station equipment; acoustical echoes cancellation; design; frequency-subband concept; multirate systems; telephone station equipment; Echo cancellers; Filter bank; Frequency; Signal analysis; Signal design; Signal synthesis; Tail; Teleconferencing; Telephony; Transversal filters;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 1988. ICASSP-88., 1988 International Conference on
Conference_Location
New York, NY
ISSN
1520-6149
Type
conf
DOI
10.1109/ICASSP.1988.197170
Filename
197170
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