A memory and computation efficient structure for MPEG polyphase synthesis
M.F. Mansour · 2004
We propose a new structure for polyphase synthesis in the MPEG-1 audio standard. The algorithm is based on factorizing the DCT matrix in a way similar to FFT factorization. The proposed algorithm reduces the memory requirement significantly even with direct implementation. With optimized implementation, the computational requirement can be reduced considerably as well.