Patent ID: 8090585

Claim:
An audio decoding device for decoding stream data containing encoded audio data, wherein the audio decoding device receives first stream data containing encoded data obtained by encoding first audio data, and second stream data containing encoded data obtained by encoding second audio data and a data processing parameter for processing the first audio data and the second audio data, the device comprising: an audio decoding section for decoding the first stream data and the second stream data to generate the first and second audio data and the data processing parameter; an external setting section in which a parameter corresponding to the data processing parameter is set; an audio data processing section for processing the first and second audio data; and an error recovery start time control section for instructing the audio data processing section to start data processing when the data processing parameter generated by the audio decoding section continues to include an error for a predetermined time or more; wherein the audio data processing section processes at least one of the first and second audio data using the parameter set in the external setting section when the data processing parameter contained in the second stream data includes an error, and using the data processing parameter generated by the audio decoding section when the data processing parameter contained in the second stream data includes no error, and wherein the audio data processing section is adapted to start data processing in response to an instruction from the error recovery start time control section.