| 摘要 |
PCT No. PCT/JP95/00146 Sec. 371 Date Sep. 27, 1995 Sec. 102(e) Date Sep. 27, 1995 PCT Filed Feb. 3, 1994 PCT Pub. No. WO95/21489 PCT Pub. Date Aug. 10, 1995The present invention includes an encoding and decoding apparatus and method where there is used a transform processing to allow a waveform element of a corresponding block to interfere with waveform elements of blocks adjoining in both directions at the time of inverse transform processing as in the case of, e.g., MDCT, to compose a waveform signal, amplifying processing in encoding and corresponding correction processing in decoding can be carried out without inconsistency between blocks. Thus, occurrence of pre-echo can be prevented by simple configuration by using spectrum transform processing of high encoding efficiency. |
