Echo cancellation method and device, electronic equipment and medium

Abstract

The invention discloses an echo cancellation method and device, electronic equipment and a medium, and is applied to the field of communication. The method comprises the following steps: acquiring a first voice signal of a home terminal and a second voice signal of an opposite terminal; aligning the first voice signal and the second voice signal to obtain a home terminal initial voice signal corresponding to the first voice signal and an opposite terminal initial voice signal corresponding to the second voice signal; determining a corresponding residual echo signal according to the home terminal initial voice signal and the opposite terminal initial voice signal; determining a residual echo power spectrum corresponding to the residual echo signal; determining a residual error signal according to the residual echo signal and the residual echo power spectrum; and determining a corresponding home terminal target voice signal according to the residual signal. The residual echo signal obtained in the invention is the signal after the echo is eliminated for the first time, and the residual signal is the signal after the echo is eliminated for the second time, so that the echo is eliminated twice on the whole, and the accuracy of the finally determined home terminal target voice signal is further improved.

Images