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Convention Paper

Design of MPEG-4 AAC Encoder

Authors: Chang, Tzu-Wen; Chien, Chu-Ting; Chiou, Ting; Hsiao, You-Hua; Hue, Hen-Wen; Lee, Wen-Chieh; Liu, Chi-Min; Peng, Kang-Yan; Yang, Chung-Han

AES Convention 117 · Paper 6201 · October 2004

Abstract

The state-of-art natural audio coder, MPEG-4 AAC [1] [2], has provided the extensive coding modules for achieving high coding efficiency. The modules, which includes filter bank, window switch, psychoacoustic model, bit allocation, bit reservoir, lossless coding, temporal noise shaping, and middle/side coding, has span a large design dimension and challenge for audio coding technology. In this paper, the design of these modules, named as NCTUAAC encoder, is presented to provide adorable audio quality with low computation complexity.

Details

Published in
AES Convention 117
AES Convention
117
Paper number
6201
Publication date
October 6, 2004
Session subject
Lossy and Lossless Audio Coding
Affiliation
PSPLab, Computer Science and Information Engineering Department, National Chiao-Tung University, Hsin-Chu, Taiwan ; InterVideo, Digital Tech, Taipei, Taiwan (See document for exact affiliation information.)
Type
Convention Paper