Patent ID: 8370724

Claim:
An audio reproduction device comprising: a decoding processor configured to decode input voice data; a discontinuousness determination unit configured to determine from input packet information whether or not a packet is discontinuous with a preceding packet; a reset processing unit configured to reset decoding information if it is determined that the packet is discontinuous by the discontinuousness determination unit; a frequency analysis unit configured to perform frequency analysis on data decoded by the decoding processor; an envelope calculation unit configured to calculate an envelope of the data decoded by the decoding processor; a level difference calculation unit configured to calculate a level difference of the data decoded by the decoding processor; a correction processing unit configured to be able to perform a plurality of correction processes and to apply a specific correction process to decoded data if the correction process is necessary; and a processing determination unit configured to determine whether or not a correction process is to be performed from results of a frequency analysis, to determine whether or not a packet data is discontinuous, to determine which correction process is to be applied by the envelope and the level difference if the packet data is discontinuous, and to output an instruction to perform a correction process according to results of the determination.