Patent ID: 8032386
Filing Date: 2011-10-04
Classification: G10L,G11B,H04S

Abstract:
1. A method of decoding an audio signal, by a decoder operated by a central processing unit, the method comprising: receiving, by the decoder, the audio signal including at least one block of audio data and configuration information; reading, by the decoder, coding type information and partitioning information from the configuration information, the coding type information indicating whether a Block Gilbert Moore Code (BGMC) scheme is used in encoding the audio signal and the partitioning information indicating a sub-block partition scheme by which the block is divided into sub-blocks; reading, by the decoder, sub-block information from the block of audio data, the sub-block information indicating a number of the sub-blocks into which the block is partitioned given the sub-block partitioning scheme, wherein the number of the sub-blocks is determined based on an entropy coding scheme and the sub-block partition scheme; and decoding, by the decoder, the sub-blocks based on the entropy coding scheme, wherein the entropy coding scheme is one of a Rice code scheme and the BGMC scheme, and the sub-block partitioning scheme is one of (i) a first partition scheme providing for selecting between no partitioning and partitioning the block into four sub-blocks, and (ii) a second partition scheme providing for selecting between no partitioning, partitioning the block into two sub-blocks, partitioning the block into four sub-blocks and partitioning the block into eight sub-blocks.