Patent ID: 9042574
Filing Date: 2015-05-26
Classification: G10L,H04M

Abstract:
1. A method of processing audio signals at a device for use in a communication event, the device comprising an audio output for outputting audio signals of the communication event, the method comprising: the device querying a data store to obtain an indication of an echo direction from which audio signals output from the audio output are likely to be received at a microphone array of the device, said microphone array comprising a plurality of microphones; determining beamformer coefficients of an adaptive beamformer of the device in dependence upon the obtained indication of the echo direction; receiving audio signals at the plurality of microphones of the microphone array; and applying, using the adaptive beamformer, the determined beamformer coefficients to the received audio signals, thereby generating a beamformer output for use in the communication event, wherein the beamformer coefficients are determined such that the adaptive beamformer applies echo suppression to audio signals received at the microphone array from the indicated echo direction.