In one embodiment, the method includes receiving the audio signal including at least one block of audio data and configuration information, and reading coding type information from the configuration information. The coding type information indicates an entropy coding scheme used in encoding the audio signal. Partitioning information is read from the configuration information, and the partitioning information indicates whether the block is divided into sub-blocks. The partitioned sub-blocks are decoded based on the entropy coding scheme if the block is divided into sub-blocks.