echo path meaning in English

回声路径

Tele - conference , video - conference . acoustic echo cancellation is normally achieved by means of an acoustic echo canceller , which , in its simplest form , consists of an adaptive filter which mimics the transfer function of the echo path ( or room acoustic ) to synthesize a replica of the echo , and then subtracts the estimation from the combined echo and near - end speech ( or disturbance ) signal to obtain the near - end signal alone
声回波抵消通常采用声回波抵消器来实现，最简单的声回波抵消器由自适应滤波器组成。具体方法是用自适应滤波器来估计回波信号，并从麦克风信号中减掉该估计值，从而实现声回波的抵消。