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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.
Author (s): Driessen, Peter F.; Li, Yan
Affiliation:
University of Victoria
(See document for exact affiliation information.)
AES Convention: 119
Paper Number:6611
Publication Date:
2005-10-06
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Session subject:
Miscellaneous Audio Topics
Permalink: https://aes2.org/publications/elibrary-page/?id=13284
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Driessen, Peter F.; Li, Yan; 2005; An Unsupervised Adaptive Filtering Approach of 2-to-5 Channel Upmix [PDF]; University of Victoria; Paper 6611; Available from: https://aes2.org/publications/elibrary-page/?id=13284
Driessen, Peter F.; Li, Yan; An Unsupervised Adaptive Filtering Approach of 2-to-5 Channel Upmix [PDF]; University of Victoria; Paper 6611; 2005 Available: https://aes2.org/publications/elibrary-page/?id=13284