FREQUENCY SEGMENTATION TO OBTAIN BANDS FOR EFFICIENT CODING OF DIGITAL MEDIA

摘要

A method is provided for an audio processing device to decode a bitstream representing an audio signal, the method comprising: decoding an encoded baseband from the bitstream; and decoding an encoded extended band from the bitstream, the decoding comprising: receiving data comprising a minimum ratio sub-band size and an altered configuration of sizes of a plurality of variable size sub-bands, determining a smallest sub-band size in the altered configuration by dividing the smallest sub-band size in a default configuration by the minimum ratio sub-band size, and determining an actual sub-band multiplier by adding an expected sub-band multiplier to a coded difference value.