| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound quality improvement method by adjusting angles of speakers for the realization of optimal sound quality, based on the detection of passenger seat location, movement of passenger seats, and the height of the passengers' ears, and by regulating the angle/location of the speakers fixed to the vehicle so as to match detection results. SOLUTION: The system comprises stages for: setting the basic sound fields to cope with all cases based on the number and location of the passengers getting on a car; forming a memory table determining the speaker angles for individual basic sound fields mentioned above; detecting the location and the number of passengers in the car, as well as the position of passengers' ears; reading speaker angles, corresponding to the detection results shown above, from among the aforementioned memory table, and for setting movement angles for the speakers, based on the read data; and moving individual speakers in accordance with the movement angles for the speakers. COPYRIGHT: (C)2005,JPO&NCIPI
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