The problem of influencing surround sound perception by video content was addressed employing subjective testing procedures in which experts listened to the sound with- and without video image presence and provided their answers. Results of experiments demonstrated in which cases and how video may affect the localization of virtual sound sources. The obtained data were then analyzed by means of modern techniques of intelligent data exploration and knowledge discovery allowing finding some hidden relations between semantic descriptors of subjective impressions. Finally, basing on the results of data analysis a set of rules concerning mastering of multichannel audio to accompany various types of video content were derived. Some results of this study will be presented and discussed in the paper.
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