DocumentCode
3346774
Title
A memory and computation efficient structure for MPEG polyphase synthesis
Author
Mansour, Mohamed F.
Author_Institution
DSP Solutions R&D Center, Texas Instrum. Inc., Dallas, TX, USA
Volume
5
fYear
2004
fDate
17-21 May 2004
Abstract
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.
Keywords
audio coding; computational complexity; decoding; discrete cosine transforms; matrix decomposition; transform coding; DCT matrix factorization; FFT factorization; MPEG polyphase synthesis; MPEG-1 audio standard; audio decoder; computational requirement reduction; memory requirement reduction; Computational efficiency; Filters; Interleaved codes; Phase change materials; Prototypes;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
ISSN
1520-6149
Print_ISBN
0-7803-8484-9
Type
conf
DOI
10.1109/ICASSP.2004.1327093
Filename
1327093
Link To Document