VOICE ENCODING METHOD AND VOICE DECODING METHOD

摘要

PROBLEM TO BE SOLVED: To improve the decoding efficiency on a reproduction side when a multichannel voice signal is encoded with variable compression rates. SOLUTION: The audio area of an audio packet is composed of PPCM access units and a PPCM access unit is composed of PPCM sink information and a subpacket. The PPCM sync information includes channel allocation information of two channels, etc.