38results about How to "Reduce dissonance" patented technology

The embodiment of the invention discloses an echo cancellation method, device and equipment and a storage medium, wherein the method comprises the steps: determining a far-end frequency domain signalcorresponding to a far-end sound signal at a first moment, and determining an echo estimation frequency domain signal according to a first coefficient of a self-adaptive filter at the first moment andthe far-end frequency domain signal; performing echo cancellation on a near-end sound signal at the first moment according to the echo estimation frequency domain signal to obtain a residual frequency domain signal; determining a first adjustment factor; determining a control factor; updating the first coefficient according to the control factor and the first adjustment factor to obtain a secondcoefficient of the self-adaptive filter at a second moment so as to perform echo cancellation on the near-end sound signal at the second moment according to the second coefficient, wherein the secondmoment is the next moment of the first moment; and outputting an echo cancellation signal according to the filtering state and the residual frequency domain signal. By adopting the embodiment of the invention, the viability and robustness of the self-adaptive filter can be improved, and the accuracy of echo cancellation signal output is improved.