Blind cancellation of stereo-base widening

H.H. Ven, van de, R.M. Aarts, P.C.W. Sommen

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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.
Originele taal-2Engels
Pagina's (van-tot)227-235
Aantal pagina's9
TijdschriftJournal of the Audio Engineering Society
Nummer van het tijdschrift4
StatusGepubliceerd - 2007

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