Patent ID: 7409143

Claim:
An apparatus for playing a DVD-Audio disk, wherein the DVD-Audio disk includes a data zone to store data to be reproduced by the apparatus and an information zone to store information on said data to be reproduced, said information zone includes directories of a video title set (VIDEO_TS) and an audio title set (AUDIO_TS), wherein said AUDIO_TS directory includes information on an audio manager (AMG) having information on audio titles, wherein said data zone includes said audio titles each having audio title set information (ATSI) followed by a plurality of contiguous audio objects (AOBs), said ATSI includes a plurality of audio stream attributes each having an audio coding mode, a first, second or third quantization bit number corresponding to the data to be reproduced, a first, second, third, fourth, fifth or sixth sampling frequency corresponding to the data to be reproduced, and decoding algorithm information relating to a number of audio channels of the data to be reproduced, and each of said AOBs includes a plurality of audio packs recorded with audio data corresponding to the decoding algorithm stored in the audio stream attribute, said apparatus comprising: a data receiver to receive said audio data retrieved from the DVD-Audio disk; a controller to generate an audio control signal including said audio coding mode, the one of said first through sixth sampling frequencies, the number of audio channels, and the one of said first through third quantization bit numbers based upon information on said audio data; an audio decoder to decode said audio data, to multi-channel mix, sampling-frequency convert and requantize said decoded audio signal according to said audio control signal, to generate output decoded audio data; and an audio output circuit to convert said output decoded audio data into an analog audio signal.