Propose an overlap structure equalization algorithm for the pre-echo channel, which can weaken the dependence on feedforward equalizer, enhance the performance and reduce the complexity.
提出了一种对抗前径信道的重叠结构均衡算法，可以降低系统对抗前径时对前馈滤波器长度的依赖，提高系统的性能并降低复杂度。
In the multi-channel echo cancellation, the nonlinear pre-processing is always used to overcome the non-convergence of the filter caused by the strong correlation of input signals.
非线性预处理是解决多通路回波消除中因输入信号间的强相关性而引起的滤波器不收敛的有效方法。
In perceptual audio coding with low bit rate application, the pre-echo artifact is more distinct, and the effective detection of transient signals is the precondition.
在低比特率音频感觉编码中，预回声失真更为突出，而对其处理的前提是瞬态信号的有效检测。
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