Fast communication: Comments on "Stereo echo cancellation algorithm using adaptive update on the basis of enhanced input-signal vector"

Authors:
ChangWoo Lee;Hyeonwoo Cho;Sang Woo Kim
Affiliations:
Division of Electrical and Computer Engineering, Pohang University of Science and Technology, Pohang, Gyungbuk 790-784, South Korea;Division of Electrical and Computer Engineering, Pohang University of Science and Technology, Pohang, Gyungbuk 790-784, South Korea;Division of Electrical and Computer Engineering, Pohang University of Science and Technology, Pohang, Gyungbuk 790-784, South Korea
Venue:
Signal Processing
Year:
2008

Citing 1
Cited 1

Stereo echo cancellation algorithm using adaptive update on the basis of enhanced input-signal vector

Signal Processing

Fast communication: Derivation of a new normalized least mean squares algorithm with modified minimization criterion

Signal Processing

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Abstract

In the paper ''Stereo echo cancellation algorithm using adaptive update on the basis of enhanced input-signal vector'', an enhanced form of the normalized least mean squares (NLMS) algorithm has been proposed. However, the enhanced algorithm has been derived by simply replacing the increment vector of the conventional NLMS with a new increment vector while not explicitly defining and validating the cost function of the algorithm. In this letter, we present the cost function of the algorithm, and prove that the algorithm is not a general LMS-type algorithm in some criterion.