Share Email Print
cover

Proceedings Paper

Fast Huffman encoding algorithms in MPEG-4 advanced audio coding
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This paper addresses the optimisation problem of Huffman encoding in MPEG-4 Advanced Audio Coding stan- dard. At first, the Huffman encoding problem and the need of encoding two side info parameters scale factor and Huffman codebook are presented. Next, Two Loop Search, Maximum Noise Mask Ratio and Trellis Based algorithms of bit allocation are briefly described. Further, Huffman encoding optimisation are shown. New methods try to check and change scale factor bands as little as possible to estimate bitrate cost or its change. Finally, the complexity of old and new methods is calculated, compared and measured time of encoding is given.

Paper Details

Date Published: 25 November 2014
PDF: 7 pages
Proc. SPIE 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014, 92902S (25 November 2014); doi: 10.1117/12.2075008
Show Author Affiliations
Grzegorz Brzuchalski, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 9290:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014
Ryszard S. Romaniuk, Editor(s)

© SPIE. Terms of Use
Back to Top