| 摘要 |
<p>The invention provides an echo signal offset method and system as well as a television, belonging to the technical field of electroacoustics. The method comprises the following steps: acquiring variation information of time delay, phase shift and amplitude of an echo signal of a test signal; correcting coefficients of a filter based on the variation information; estimating an echo signal generated by a far-end voice signal based on the corrected coefficients of the filter; and eliminating the estimated echo signal from received local voice signals, wherein the local voice signals comprise the voice signal of a local user and the echo signal locally practically generated by the far-end voice signal. Based on full consideration of influence of environment factors on echo signals, echo can be eliminated effectively.</p> |
