| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve difficulty of listening navigation voice for a driver and interference of navigation voice for other crews who listen music because of mixing-up of the navigation voice and music in a vehicle interior if a navigation voice guidance is performed during the car audio reproduction. <P>SOLUTION: Not only the navigation voice but control voice with phase reverse to that of music reproduced from a car audio speaker is reproduced from a speaker near the driver, so the music is reduced and it becomes easy for the driver to listen to the navigation voice. On the other hand, navigation voice leaking to other crews is made lower than the music level, so they can enjoy only music. <P>COPYRIGHT: (C)2007,JPO&INPIT |
