| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound field correcting device that improves localization and presence of a sound at a listening point. <P>SOLUTION: The sound field correcting device 1 is equipped with a correlation arithmetic part 2 that outputs a pulse signal as an output sound signal 9 to a plurality of speakers 11 individually and calculates impulse responses from speakers 11 to the listening points according to a false noise signal 13 obtained by collecting sounds outputted from the respective speakers 11 at the listening points, a mean delay time arithmetic part 3 which calculates the mean delay time of the impulse responses, and a delay part which delays an external input sound signal 8 respectively according to the mean delay time of the impulse responses calculated by the mean delay time arithmetic part 3 and outputs it as an output sound signal 9 to the respective speakers 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
