回声消除器的基本组成部分是一个自适应滤波器，和一个双向通话检测器。
The basic components of an echo canceller are an adaptive filter, and a double-talk detector.
NLMS算法是回声消除器中最常用的算法之一，然而语音信号的强相关性使NLMS(归一化最小均方)算法的收敛速度变慢。
NLMS (normalized least mean square) algorithm is widely used in echo canceller. However, due to high correlation of speech signals, the performance of echo canceller based on NLMS is depressed.
介绍了自适应回声消除器的基本结构及各个功能模块，例如：变阶数自适应滤波器，语音状态检测器，延迟分析器和NL MS算法控制器。
The structure of AEC as well as its composing modules, are introduced such as the speech detector, the adaptive filter, the time delay estimator and the NLMS algorithm controller.
该算法使用自适应滤波器跟踪回声信道，使用一个辅助滤波器和自适应滤波器一起完成回声消除。
The algorithm USES an adaptive filter to track the echo path, and an auxiliary filter to cancel the echo together with the adaptive filter.
本文提出一种使用双滤波器的回声消除算法。
So, a new algorithm with two-filters for the echo cancellation is proposed.
分数延迟滤波器广泛用于通信，语音处理，回声消除等。
Fractional delay filters are applied to a wide range such as communications, speech processing, echo cancellation, etc.
分数延迟滤波器广泛用于通信，语音处理，回声消除等。
Fractional delay filters are applied to a wide range such as communications, speech processing, echo cancellation, etc.
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