1. A method for sound source localization, comprising the steps of: receiving an aural signal by at least one microphone; computing an envelope of said aural signal; performing a non-linear, onset preserving smoothing of said envelopes to generate a smooth envelope, the smooth envelope set to a value of the envelope except where the envelope changes from a rising phase to a falling phase, the smooth envelope is set to the value of the envelope multiplied by an inhibition factor, and except where a previous value of the smooth envelope is greater than the envelope, the smooth envelope is set to decay from the previous value based on a time constant; evaluating cues for sound source localization, using measurement points from the smooth envelope, where measurement points are where said smoothing envelope changes from a rising phase to a falling phase; and localizing a point of origin of the aural signal based upon said cues.