发明名称 FAST METHOD FOR THE FORWARD AND INVERSE MDCT IN AUDIO CODING
摘要 The present invention computes a discrete cosine transform (DCT), for example, an 18-point DCT in a fast and efficient manner. Furthermore, using this 18-point DCT method, two new methods are developed to compute the MDCT and its IMDCT, respectively. The number of multiplications and additions needed to implement both of these two new methods are reduced substantially.
申请公布号 WO0159603(A1) 申请公布日期 2001.08.16
申请号 WO2001US04197 申请日期 2001.02.09
申请人 CHENG, T., C.;TRUONG, T., K.;KUO, J., M.;JENG, J., H.;FU, S., L. 发明人 CHENG, T., C.;TRUONG, T., K.;KUO, J., M.;JENG, J., H.;FU, S., L.
分类号 G06F17/14;G10L19/02;(IPC1-7):G06F17/14 主分类号 G06F17/14
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