Title :
Fast subband filtering in MPEG audio coding
Author :
Konstantinides, Konstantinos
Author_Institution :
Hewlett-Packard Co., Palo Alto, CA, USA
Abstract :
Subband filtering is one of the most compute-intensive operations in the MPEG audio coding standard. The author proves that the matrixing operations in MPEG subband filtering can be efficiently computed using fast 32-point DCT or inverse DCT (IDCT) algorithms.<>
Keywords :
audio signals; decoding; discrete cosine transforms; encoding; filtering and prediction theory; matrix algebra; telecommunication standards; MPEG audio coding; compute-intensive operation; fast 32-point DCT algorithm; fast 32-point IDCT algorithm; fast subband filtering; matrixing operations; Audio coding; Bit rate; Decoding; Discrete cosine transforms; Filtering algorithms; Filters;
Journal_Title :
Signal Processing Letters, IEEE
