| 摘要 |
PROBLEM TO BE SOLVED: To provide a playback system capable of more simply and more efficiently suppressing noise than in the conventional manner.SOLUTION: A bit stream to be input in a playback system 1 consists of a plurality of frames including main data, a header, and auxiliary data which becomes necessary for decoding the main data. A decoding part 10 takes out a part allocated from the bit stream to the main data to be decoded based on the auxiliary data for every frame. A bit rate violation detection part 13 detects whether or not a frame is at a bit rate violation state that a bit rate to be calculated based on the number of bits of the part taken out as the main data does not match to a bit rate included in the header for every frame. |
