19. The method of claim 17 , wherein determining one or more salient portions of the input window of sound further includes summing the normalized maps to provide a bottom-up input to a saliency map.
19. The method of claim 17 , wherein determining one or more salient portions of the input window of sound further includes summing the normalized maps to provide a bottom-up input to a saliency map. 22. The method of claim 19 , wherein the saliency map is a two-dimensional (2D) saliency map wherein determining the salient portions of the input window of sound includes finding local maxima of the 2D saliency map.