| 摘要 |
A book comprises two or more pages at least one of which is operable to visually display information about a subject, a first speaker mounted to a first page and operable to generate a sound, a second speaker mounted to a second page and operable to generate a sound, and an audio device operable to cause the first speaker to generate a first sound and the second speaker to generate a second sound, wherein the first and second sounds generate a sound-field having more than one spatial dimension. By generating a sound-field having more than one spatial dimension, the book can provide a reader an aural experience that is more accurate with the actual aural experience of the book's subject or aspect of the subject. Thus, the reader is more likely to accurately comprehend and appreciate the information that the book provides.
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