The degradation of the stereophonic illusion due to off-center listening is investigated, both for a small and wide loudspeaker basis. The experimental results for video applications are compared with the case of a much wider loudspeaker base, as in audio-only applications. The optimum loudspeaker radiation pattern is discussed, obeying the time/intensity trading concept.
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https://aes2.org/publications/elibrary-page/?id=6669
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