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Convention Paper

An Unsupervised Adaptive Filtering Approach of 2-to-5 Channel Upmix

Authors: Driessen, Peter F.; Li, Yan

AES Convention 119 · Paper 6611 · October 2005

Abstract

A new algorithm of converting two-channel audio materials to five-channel based on subband unsupervised adaptive filtering is proposed in this paper. This algorithm uses a subband analysis-processing-synthesis framework. In each subband, a robust stereo image is obtained using principle component analysis, and an effective energy re-distribution among surround channels is achieved by mapping cross-correlation between two input channels to a weighted panning matrix.

Details

Published in
AES Convention 119
AES Convention
119
Paper number
6611
Publication date
October 6, 2005
Session subject
Miscellaneous Audio Topics
Affiliation
University of Victoria (See document for exact affiliation information.)
Type
Convention Paper