The invention relates to an echo
elimination method, an apparatus and a
system, and a computer readable storage medium. The method comprises the following steps of acquiring and estimating characteristic parameters of a local
signal, wherein the characteristic parameters include a current frame reference
signal emitted by a
sound production device, a
signal received by a current frame
microphone and a previous frame
adaptive filter coefficient; converting the characteristic parameters into
frequency domain signals respectively; according to the converted
frequency domain signals, estimating the local signal; calculating a variance of the local signal; and according to the variance of the local signal, updating a step length factor and a regularization factor of an
adaptive filter. Throughcarrying out FFT(
fast Fourier transform) on the
acquired characteristic parameters used for estimating the local signal,
time domain signals are converted into the
frequency domain signals. Sparsity and distinguishability of the frequency domain signals are used so that the local signal estimated through the frequency domain signals and the calculated variance of the local signal are accurate, which is good for enhancing an echo
elimination effect.