HIGH QUALITY MULTI-CHANNEL AUDIO ENCODING APPARATUS AND DECODING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a High Quality Multi-channel Audio (HQMA) encoding apparatus and a decoding apparatus, which provide compatibility with a lower channel by making coding variable according to characteristics of audio signals.SOLUTION: There are disclosed a High Quality Multi-channel Audio(HQMA) encoding apparatus and a decoding apparatus. The HQMA encoding apparatus and the decoding apparatus provide compatibility with a lower channel by performing channel base audio encoding or channel base audio decoding in accordance with characteristics of input audio signals to provide compatibility with a lower channel.