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Spatial Distribution Meter: A New Method to Display Spatial Impression Over Time

A wide-spread method for visualizing the spatial behaviour of stereo signals is the vector-scope or goniometer which shows the relation between the left and right channel. Well-trained eyes can see misbalance and mono compatibility problems in these very fast changing figures. However, this analysis tool contains no information about past behaviour of the stereo signal and no details can be seen. In this contribution we are introducing a new method for analyzing stereo signals, which is based on the vector-scope but shows the behaviour over time. The final graph looks like a spectrogram / sonogram, where the axes are time and angle. Useful applications of this new spatial distribution meter are the analysis of stereo impulse responses, and the typical applications of a vector-scope.

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AES - Audio Engineering Society