Title :
Efficient implementation structures of AC-3´s filter banks
Author_Institution :
Hangzhou Inst. of Electr. Eng., China
Abstract :
Efficient implementation structures of filter banks used in the AC-3 audio speech coding system are presented, these structures are based on the fast DCT-IV. Compared with structures using the FFT, the computational complexity of the structures presented in this paper are reduced by about 70%
Keywords :
audio coding; computational complexity; discrete cosine transforms; filtering theory; speech coding; transform coding; AC-3 system; audio speech coding; computational complexity; efficient implementation structures; fast DCT-IV; filter banks; Algorithm design and analysis; Channel bank filters; Computational complexity; Discrete transforms; Filter bank; Image reconstruction; Signal analysis; Signal processing; Spectral analysis; Speech coding;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770143
