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Convention Paper

Efficient Design of Time-Frequency Stereo Parameter Sets for Parametric HE-AAC

Authors: Chang, Tzu-Wen; Hsu, Han-Wen; Lee, Kan-Chun; Lee, Wen-Chieh; Liu, Chi-Min; Yang, Chung-Han

AES Convention 119 · Paper 6600 · October 2005

Abstract

Parametric Stereo Coding (PS) tool is used to reconstruct stereo signal from the monaural signal. The tool can be jointly used with the HE-AAC to have high compression ratio and is referred to as the parametric HE-AAC in this paper. The PS tool is able to capture the stereo image of the audio input signal into a limited number of parameters, requiring only a small overhead. In MPEG-4 HE-AAC, the PS tool segments a frame into several regions in time domain and into stereo bands in frequency domain to deliver stereo parameter sets. This paper considers the design of the stereo parameters. These methods are integrated in the NCTU-HE-AAC and the objective experiments are conducted to check the quality.

Details

Published in
AES Convention 119
AES Convention
119
Paper number
6600
Publication date
October 6, 2005
Session subject
Audio Coding
Affiliation
National Chiao Tung University (See document for exact affiliation information.)
Type
Convention Paper