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The modified discrete cosine transform (MDCT) and inverse MDCT (IMDCT) are two of the most computationally intensive operations in layer III of MPEG audio coding standard. In this paper, we present an efficient fast unified kernel structure and FPGA implementation for forward and inverse MDCT algorithm based on radix-3 algorithm of a sequence with length-3m. We implemented an efficient MDCT IP core...
The MDCT/IMDCT is the basic processing component for digital audio compression. It is also the most computationally intensive operation in audio compression standards. MP3 is still used in the audio standards for audio compression. This paper presents a new and efficient implementation of 12/36-point MDCT/IMDCT architectures for MP3. The proposed architecture utilize Chartered 90nm CMOS technology...
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