Patent ID: 6317703
Filing Date: 2001-11-13
Classification: H04R

Abstract:
A signal processing method which reconstructs an acoustic signal that substantially matches a selected one of a plurality of sources comprising the steps of:creating a time-frequency representation of a composite acoustic signal generated by said plurality of sources;comparing selected regions of the time-frequency representation;assigning a plurality of non-zero energy regions of the compared regions to a single source wherein, for at least a first of said non-zero energy regions that is assigned to a single source there are at least second and third non-zero energy regions that are not assigned to said single source, such that(a) said second non-zero energy region shares the same frequency range as said first non-zero energy region; and(b) said third non-zero energy region shares the same time range as said first non-zero energy region;andreconstructing the selected one of the plurality of acoustic sources from the set of assigned non-zero energy regions.