| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology for performing localizing setting of a sound image using a plurality of speakers more simply as compared with the conventional art, in a space, such as a theater and a hall. <P>SOLUTION: Respective pronunciation positions of a plurality of speakers SP and the position of a virtual sound source are input to the acoustic device 1. The acoustic device 1 calculates the input respective positions of respective speakers SP and respective distances to the position of virtual sound source, converts ratios of the respective distances to the sum of the respective calculated distances by a monotonically decreasing function, and calculates a sound pressure level at the respective speaker positions in accordance with the result of conversion. Then, the acoustic device 1 sets a sound voltage parameter so that a sound pressure corresponds to the calculated sound pressure level with respect to a signal processing circuit. <P>COPYRIGHT: (C)2010,JPO&INPIT |
