Patent ID: 6253173
Filing Date: 2001-06-26
Classification: G10L

Abstract:
An apparatus for generating data indicative of a grouping scheme, said data indicative of a grouping scheme being suitable for use in compressing feature vectors, said apparatus comprising:an input for receiving a plurality of feature vectors representative of audio information, each of said feature vectors including a plurality of discrete elements;means for processing said plurality of feature vectors to generate corresponding sets of sub-vectors, said processing means including means for iteratively altering an order of grouping of discrete elements of at least one feature vector into the corresponding sets of sub-vectors until a pre-determined condition is reached, said order of grouping being altered at least in part on a basis of a distortion measurement on the discrete elements in the set of sub-vectors;an output for outputting data indicative of a grouping scheme, said grouping scheme being derived at least in part on the basis of the order of grouping of discrete elements when the pre-determined condition is reached.