Motorola Corporation

Charan M N

Anil N Patel

Satish K Sreenivas Rao

Krishna Kishore A

A system () and method () for near-end detection of voice () in speakerphone mode is provided. The method can include determining () a convergence of an adaptive filter (), determining () a dissimilarity between an autocorrelation () of an echo estimate () and an autocorrelation () of a microphone signal () if the adaptive filter has converged, computing () a weighting factor () based on the dissimilarity, applying the weighting factor to a voice activity level () to produce a weighted voice activity level (), comparing () the weighted voice activity level to a constant threshold, and performing () a muting operation in accordance with the comparing for providing half-duplex communication.

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Bengaluru, India

Charan M N