Compensation for the Double-Talk Detection Delay in Echo Canceller Systems

Kensaku FUJII; Juro OHGA

Compensation for the Double-Talk Detection Delay in Echo Canceller Systems

Kensaku FUJII, Juro OHGA

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This letter presents a new algorithm for echo cancellers, which prevents the reduction of echo return loss due to a double-talk. The essence of the algorithm is to introduce signal delays to avoid the reduction. A convergence condition in the algorithm was examined by using the IIR filter expression of the NLMS algorithm, and it was concluded that the IIR filter should be a low pass filter with unity gain. The condition is accomplished by selecting a small step gain.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E76-A No.7 pp.1143-1146

Publication Date: 1993/07/25

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Type of Manuscript: Special Section LETTER (Special Section of Letters Selected from the 1993 IEICE Spring Conference)

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Kensaku FUJII, Juro OHGA, "Compensation for the Double-Talk Detection Delay in Echo Canceller Systems" in IEICE TRANSACTIONS on Fundamentals, vol. E76-A, no. 7, pp. 1143-1146, July 1993, doi: .
Abstract: This letter presents a new algorithm for echo cancellers, which prevents the reduction of echo return loss due to a double-talk. The essence of the algorithm is to introduce signal delays to avoid the reduction. A convergence condition in the algorithm was examined by using the IIR filter expression of the NLMS algorithm, and it was concluded that the IIR filter should be a low pass filter with unity gain. The condition is accomplished by selecting a small step gain.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/e76-a_7_1143/_p

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@ARTICLE{e76-a_7_1143,
author={Kensaku FUJII, Juro OHGA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Compensation for the Double-Talk Detection Delay in Echo Canceller Systems},
year={1993},
volume={E76-A},
number={7},
pages={1143-1146},
abstract={This letter presents a new algorithm for echo cancellers, which prevents the reduction of echo return loss due to a double-talk. The essence of the algorithm is to introduce signal delays to avoid the reduction. A convergence condition in the algorithm was examined by using the IIR filter expression of the NLMS algorithm, and it was concluded that the IIR filter should be a low pass filter with unity gain. The condition is accomplished by selecting a small step gain.},
keywords={},
doi={},
ISSN={},
month={July},}

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TY - JOUR
TI - Compensation for the Double-Talk Detection Delay in Echo Canceller Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1143
EP - 1146
AU - Kensaku FUJII
AU - Juro OHGA
PY - 1993
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E76-A
IS - 7
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - July 1993
AB - This letter presents a new algorithm for echo cancellers, which prevents the reduction of echo return loss due to a double-talk. The essence of the algorithm is to introduce signal delays to avoid the reduction. A convergence condition in the algorithm was examined by using the IIR filter expression of the NLMS algorithm, and it was concluded that the IIR filter should be a low pass filter with unity gain. The condition is accomplished by selecting a small step gain.
ER -