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Proceedings Paper

Energy balance in advanced audio coding encoder bit-distortion loop algorithm
Author(s): Grzegorz Brzuchalski; Grzegorz Pastuszak
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Paper Abstract

The paper presents two techniques of balancing energy in ScaleFactor bands for Advanced Audio Coding. The techniques allows the AAC encoder to get a better audio quality. The first one modifies Scale Factors assigned to each band after the quantization whereas the second finds and changes offsets in the quantization - just before rounding down. The implementations of the algorithms have been tested and results discussed. Results show that these techniques significantly improve the quality. At last hardware implementation possibilities are discussed.

Paper Details

Date Published: 25 October 2013
PDF: 7 pages
Proc. SPIE 8903, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2013, 89031T (25 October 2013); doi: 10.1117/12.2035278
Show Author Affiliations
Grzegorz Brzuchalski, Warsaw Univ. of Technology (Poland)
Grzegorz Pastuszak, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 8903:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2013
Ryszard S. Romaniuk, Editor(s)

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