1. A computer-implemented process for improving the signal to noise ratio of one or more signals from sensors of a sensor array, comprising: inputting signals of sensors of a sensor array in the frequency domain defined by frequency bins; for each frequency bin, computing a beamformer output as a function of weights for each sensor, wherein the weights are computed using combined noise from reflected paths and auxiliary sources and a sensor array response which includes the intrinsic gain of each sensor as well as its directionality and propagation loss from the source to the sensor; combining the beamformer outputs for each frequency bin to produce an output signal with an increased signal to noise ratio.