| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a three-dimensional sound apparatus that enables accurate "sonic three-dimensional localization" even when "a position of a speaker" and an "ear" are distant from each other in a vehicle compartment space that tends to provide reflected sounds or muffled sounds. <P>SOLUTION: Binaural recording stored in a reproducing-use sound source portion 4 is recorded by giving an ultrasonic modulated sound from a recording-use ultrasonic wave speaker 6 to a dummy head 1. A cross talk is suppressed, the binaural recording is thus obtained with clear sonic localization information while localization of pronunciation orientation can be improved. Further, the sounds generated by ultrasonic modulating the binaural recording stored in the reproducing-use sound source portion 4 are given towards right and left ears of a driver from reproducing-use ultrasonic wave speaker units 7, respectively, arranged at positions distant from a head α of the driver. "Sonic 3D information" relative to the localization of pronunciation orientation is accurately given to the ears of the driver. Even in a vehicle compartment tending to provide reflected sounds or muffled sounds, accurate "sonic localization" can be achieved without a headphone. <P>COPYRIGHT: (C)2013,JPO&INPIT |
