1. A method, comprising: receiving a sound input with a plurality of sound input sensors, the sound input comprising a target signal from a source and noise from at least one interferer; transforming the sound input into a frequency domain form represented by a plurality of different frequency bins; determining a plurality of recovery-filter weight sets as a function of kurtosis, each recovery-filter weight set corresponding to one of the frequency bins; determining a plurality of steering vectors, each steering vector corresponding to one of the frequency bins and one of the sound input sensors; determining a plurality of beamformers according to the steering vectors and the recovery-filter weight sets, each beamformer corresponding to one of the frequency bins; and providing an output signal representative of the target signal as a function of the sound input and the beamformers, wherein the steering vector comprises: e k , j := E m ⁡ [ X k ⁡ [ m ] ⁡ [ T k * ⁡ [ m ] ] j ] [ E m ⁡ [ X k ⁡ [ m ] ⁡ [ T k * ⁡ [ m ] ] j ] ] j ; wherein k is a frequency bin index, wherein m is a segment or frame index, wherein X is the sound input, wherein T is the frequency domain representation of the source, wherein Em is an expectation operator with respect to m, and wherein j is a sensor index.