A new technique which enlarges the sweet spot of three-dimensional audio when using loudspeakers is described. The technique, a modified short-baseline array comprising horizontally distributed multiway driver configurations plus specially designed imaging filters, substantially enlarges the listening sweet spot without requiring the very large low-frequency signal excursions of prior methods. While the technique is particularly well suited to applications that use a television or video monitor, it also provides an alternative to the conventional stereophonic loudspeaker pair and the front loudspeakers in multichannel and home theater applications.
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