1. A system for noise reduction by separating a speech signal from a noisy acoustic environment, the system comprising: a plurality of input channels each receiving one or more acoustic signals; at least one source filter coupled to the plurality of input channels to separate the one or more acoustic signals into speech and noise beams; at least one blind source separation (BSS) filter, wherein the blind source separation filter is operable to refine the speech and noise beams; and at least one dual input spectral subtraction noise suppressor (DINS), wherein the dual input spectral subtraction noise suppressor removes noise from the speech beam.