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Journal Article

Blind Cancellation of Stereo-Base Widening

Authors: Van De Ven, Erik; Aarts, Ronald M.; Sommen, Piet C. W.

Journal of the Audio Engineering Society · Volume 55 · Issue 4 · pp. 227–235 · April 2007

Abstract

Cascading of stereo-base widening systems causes a deterioration of the listening performance. A solution to this problem is to cancel the widening effect before the signal is widened again. The main effect of stereo-base widening systems is to the effect on the phase difference. A model for the distribution of the phase difference of normal mixed stereo recordings is presented. Stereo recordings processed by a stereo-base widening system do not fit this model. An application of this property is illustrated with an example. This example can estimate the amount of widening of a particular widening system in an iterative blind way. At the same time it recovers the original audio signal.

Details

Publication
Journal of the Audio Engineering Society
Volume
55
Issue
4
Pages
227–235
Publication date
April 6, 2007
Affiliation
Eindhoven University of Technology, Department of Electrical Engineering, Eindhoven, The Netherlands ; Philips Research Laboratories, Eindhoven, The Netherlands (See document for exact affiliation information.)
Type
Journal Article