Perfect Reconstruction Conditions for Adaptive Blocksize MDCT

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概要

• 論文の詳細を見る

• This paper describes the general conditions for perfect signal reconstruction in adaptive blocksize MDCT. MDCT, or modified Discrete Cosine Transform, is a method in which blocks are laid to overlap each other. Because of block overlapping, some consideration must be paid to reconstructing the signals perfectly in adaptive blocksize schemes. The perfect reconstruction conditions are derived by considering the reconstruction signals, on a segment by segment basis. These conditions restrict the analysis/synthesis windows in the MDCT formula. Finally, this paper evaluates two examples of window sets, including windows used in the ISO MPEG audio coding standard.

• 社団法人電子情報通信学会の論文
• 1994-05-25

著者

• Mochizuki T

  Information Technology Research Laboratories Nec Corporation

• Mochizuki Takashi

  Information Technology Research Laboratories, NEC Corporation

関連論文

• Perfect Reconstruction Conditions for Adaptive Blocksize MDCT

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