1. A method for processing two or more input audio signals, comprising the steps of: (a) converting M input audio signals from a time domain into a frequency domain, where M>1; (b) generating a set of one or more auditory scene parameters for each of one or more different frequency bands in the M converted input audio signals, where each set of one or more auditory scene parameters comprises an estimate of coherence between the M input audio signals; and (c) combining the M input audio signals to generate N combined audio signals, where M>N.