Patent ID: 8831210
Filing Date: 2014-09-09
Classification: G10L,H04M

Abstract:
1. A method for use in Acoustic Echo Cancellation comprising: indicating onset of a near end speech signal at a near end of a two-way communication channel, responsive to at least one of (1) detecting, at a near end, a time in which an angle between a microphone output signal and an estimate of acoustic echo present at the near end is greater than a first threshold, and (2) detecting that a average onset indicator parameter at time instant n is greater than an onset detection threshold parameter from a previous time instant, and that the average onset indicator parameter is greater than a second threshold, wherein the onset indicator parameter at a time instant n is computed from an error signal produced from the microphone output signal at time instant n, and the estimate of acoustic echo at the time instant n, and an average onset indicator parameter at time instant n is computed from the onset indicator parameter.