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Convention Paper

A Quantization Method Based on Binaural Perceptual Characteristic for Interaural Level Difference

Authors: Wang, Heng; Hu, Ruimin; Tu, Weiping; Wang, Xiaochen

AES Convention 131 · Paper 8569 · October 2011

Abstract

In this paper, we study the mechanism exists of perceptual redundancy in spatial parameters and remove redundancy from energy domain to parameter domain. We establish a binaural perceptual model based on frequency dependent of Interaural Level Difference(ILD) and use this model to direct quantitation of ILD. It solves the problem that the perceptual redundancy of spatial parameter is difficult to remove. The new quantization strategy merely quantizes the perceived variable quantity of ILD to reduce the coding bitrate. Experimental results showed that this method can bring down the parametric bitrate by about 15% compared with parametric stereo, while maintaining the subjective sound quality

Details

Published in
AES Convention 131
AES Convention
131
Paper number
8569
Publication date
October 6, 2011
Session subject
Posters: Spatial Audio Processing
Affiliation
Wuhan University, Wuhan, Hubei, China (See document for exact affiliation information.)
Type
Convention Paper