Method and apparatus for setting a step size for an adaptive filter coefficient of an echo canceller

The present invention pertains to echo cancellers, and more particularly to an adaptive step-size thereof. The step sizes for tap positions of an adaptive filter () in an echo canceller () for canceling an echo signal are individually selected based upon a profile of the echo environment. A training signal () is injected into the echo canceller and to the echo path during a training interval, or period. The adaptive filter profiles the echo path during the training interval. Respective step sizes [k] for the tap positions are generated as a function of the echo profile so generated.