Feedback echo cancellation method and feedback echo cancellation system using same

The invention discloses a feedback echo cancellation method and a feedback echo cancellation system using the same, which can improve the tracking speed and tracking performance, can track a feedbackpath well when the feedback path changes greatly, improves the echo cancellation effect, and improves the accuracy of echo cancellation. The method comprises the following steps: collecting continuousvoice signals with echoes through a voice collection module, converting the continuous voice signals with the echoes to obtain a discrete voice signal sequence, and processing the discrete voice signal sequence through a voice processing module: reading the discrete voice signal sequence point by point, performing adaptive calculation point by point, obtaining a time domain echo-removed voice signal sequence, sequentially converting and compensating the time domain echo-removed voice signal sequence, obtaining a compensation signal sequence, reading, converting and outputting the compensationsignal sequence. The syste