Patent ID: 8880414
Filing Date: 2014-11-04
Classification: G10L

Abstract:
1. A method of encoding an audio signal which is divided into consecutive blocks of audio data, each block being defined by two end boundaries, wherein the method includes the following steps applied to each block: partitioning said block of audio data into intervals; selecting a sequence of consecutive intervals of the block having higher signal energy than the remaining intervals of the block, the selected sequence of consecutive intervals being located within a region of the block containing voice data; encoding the selected sequence to obtain an encoded start state for the block; extending the encoded start state to an integer sub-block length defined by a number of sub-blocks; and encoding the remaining intervals of the block using a predictive coding method that is based on the extended encoded start state being an initialization state for the encoding and that encodes the remaining intervals of the block from the extended encoded start state towards each of the two end boundaries of the block.