Double-Talk-Robust Prediction Error Identification Algorithms for Acoustic Echo Cancellation

Waterschoot, Toon van; Rombouts, Geert; Verhoeve, Piet; Moonen, Marc

doi:10.1109/tsp.2006.887155

Cited by 51 publications

(18 citation statements)

References 24 publications

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“…In adaptive echo cancellation to solve this problem used of DTD to find double-talk time. So many DTD algorithms introduced in past years and still continued, like that is described in [14]. In this paper, to show ability of the proposed adaptive hybrid, supposed that an ideal DTD is provided.…”

Section: Adaptive Echo Cancellationmentioning

confidence: 97%

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The Wheatstone bridge-based analog adaptive filter with application in echo cancellation

Yazdi

Rezaei

2009

Analog Integr Circ Sig Process

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In this paper, a new analog adaptive filter is introduced with application in adaptive echo cancellation namely, the Wheatstone bridge-based analog adaptive filter (WAAF). It is proved the WAAF is a variable weight analog IIR filter. IIR filter weights vary with gate-source voltage control of a MOSFET transistor in triode region. The best balance point control of the WAAF is achieved using least mean square (LMS) algorithm. It is proved that analog LMS algorithm converges faster than digital LMS adaptive filter. The superiority of the proposed WAAF is observed in the designing process, computational cost, convergence speed and real time operation. Also, experimental results show ability of the proposed WAAF in the hybrid circuit of the telephone echo cancellation.

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Section: Adaptive Echo Cancellationmentioning

confidence: 97%

“…System identification of the echo path in order to cancel the echo (2). Reliable and fast control of the adaptation by a double-talk detector (DTD) in order to avoid a divergence of the adaptive system identification algorithm during presence of speech in other side of the receiving line [14].…”

Section: Adaptive Echo Cancellationmentioning

confidence: 99%

The Wheatstone bridge-based analog adaptive filter with application in echo cancellation

Yazdi

Rezaei

2009

Analog Integr Circ Sig Process

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“…The γ 1 and γ 2 are the MSE values of the fast AP and slow AP filters, respectively. The noise variance can be easily estimated during silences [14] or online [15].…”

Section: Determination Of the Error Boundsmentioning

confidence: 99%

A Low-Complexity Complementary Pair Affine Projection Adaptive Filter

Kim

Choi

Kim

et al. 2014

IEICE Trans. Fundamentals

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We present a low-complexity complementary pair affine projection (CP-AP) adaptive filter which employs the intermittent update of the filter coefficients. To achieve both a fast convergence rate and a small residual error, we use a scheme combining fast and slow AP filters, while significantly reducing the computational complexity. By employing an evolutionary method which automatically determines the update intervals, the update frequencies of the two constituent filters are significantly decreased. Experimental results show that the proposed CP-AP adaptive filter has an advantage over conventional adaptive filters with a parallel structure in that it has a similar convergence performance with a substantial reduction in the total number of updates.

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“…가 개발되었다 [6][7][8][9][10][11] . 기존 연구들이 효과적으로 반향을 제거하지만, 신 호 대 반향 비 (Signal to Echo Ratio, SER)가 -5 dB 이하 인 경우 대부분 좋은 성능을 보이지 않는다 [6][7][8][9][10][11] . [11] .…”

Section: 요인은 잡음이다 마이크에서 잡음을 제거하여 시스 템 사용자의 음성만을 깨끗하게 입력받기 위해unclassified

Robust End Point Detection for Robot Speech Recognition Using Double Talk Detection

Moon¹,

Park²,

Ko³

2012

The Journal of the Acoustical Society of Korea

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This paper presents a robust speech end-point detector using double talk detection in echoic conditioned speech recognition robot. The proposed method consists of combining conventional end-point detector result and double talk detector result. We have tested the proposed method in isolated word recognition system under echoic conditioned environment. As a result, the proposed algorithm shows superior performance of 30 % to the available techniques in the points of speech recognition rates.

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Double-Talk-Robust Prediction Error Identification Algorithms for Acoustic Echo Cancellation

Cited by 51 publications

References 24 publications

The Wheatstone bridge-based analog adaptive filter with application in echo cancellation

The Wheatstone bridge-based analog adaptive filter with application in echo cancellation

A Low-Complexity Complementary Pair Affine Projection Adaptive Filter

Robust End Point Detection for Robot Speech Recognition Using Double Talk Detection

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