...层3所用的滤波器组与层1和层2所用的滤波器组的结构相同，但是层3还使用了改进离散余弦变换(modified discrete cosine transform，MDCT)，对层1和层2的滤波器组的不足作了一些补偿。
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逆改进离散余弦变换 IMDCT
改进离散余弦逆变换 IMDCT
改进的离散余弦反变换 IMDCT
与改进型离散余弦变换 ModifiedDiscreteCosineTransform ; Modified Diserete Cosine Transform ; MDCT
逆改进型离散余弦变换 Inverse Modified Discrete Cosine Transform
改进型离散余弦变换 Modified Diserete Cosine Transform
提出了基于DCT(离散余弦变换)增强和改进谱熵的语音端点检测方法。
In the paper, a speech endpoint detection method based on DCT (Discrete Cosine Transform) enhancement and improved spectral entropy is proposed.
本文改进的偶函数和奇函数的AFT算法还分别可以用来计算离散余弦变换(DCT)和离散正弦变换(DST)。
The improved AFT algorithms for even and odd functions can also be used for computing discrete cosine transform (DCT) and discrete sine transform (DST), respectively.
与jpeg相比，JPEG 2000作了大幅改进，其中最重要的是用离散小波变换(DWT)替代了JPEG标准中的离散余弦变换。
Compared with JPEG, JPEG 2000 made substantial improvements, the most important of which is discrete wavelet transform (DWT) instead of the JPEG standard discrete cosine transform.
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