Patent ID: 9078057
Filing Date: 2015-07-07
Classification: H04R

Abstract:
1. A method for adaptively estimating a target sound signal, the method comprising: establishing a simulation model simulating an audio environment comprising: setting an initial value for each of one or more variables, each variable parameterising a comparison of audio signals received at a respective first one of the plurality of microphones with audio signals received at a respective second one of the plurality of microphones; in dependence on dynamic changes in the comparison of audio signals received by the plurality of microphones, iteratively updating the value of said one or more variables; using the updated value of said one or more variables to determine a respective adaptive beamforming weight for each of the plurality of microphones; and summing the audio signals received by each of the plurality of microphones according to their respective beamformer weights to produce an estimate of the target sound signal.