| 摘要 |
PURPOSE:To attain a high processing speed for the coder compressing digital data. CONSTITUTION:Word length information Im(n) generated by a word length information generating circuit 12 is received by a correction information generating circuit 13 in the unit of blocks, in which what bit number of bit number indicated from the word length information Im(n) is further to be reduced is discriminated based on the integrated information for each block. The word length information Im(n) is corrected by a word length correction circuit 14 according to correction information Cm(n) according to the result of discrimination to generate proper word length information Wm(n). Audio data ADOUT in which the total bit number of one block is limited within an object number are obtained by coding data AM(n) at a coding circuit 15 based on the word length information Wm(n) without repetition of generation of the word length information Im(n) and coding processing of the data Am(n). |
