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.
| Original language | English |
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| Pages (from-to) | 227-235 |
| Number of pages | 9 |
| Journal | Journal of the Audio Engineering Society |
| Volume | 55 |
| Issue number | 4 |
| Publication status | Published - 2007 |