| 摘要 |
A hands-free conversation vehicular apparatus coupling with a communication terminal includes: a communication device; a sound output device; a sound input device inputting a transmission speech sound; a vehicle information acquisition device; a first sound extraction device setting a first direction for a directionality of the sound input device, and extracting a first sound along the first direction; a sound recognition device; a second sound extraction device specifying a second direction for the transmission speech sound recognized by the sound recognition device, and extracting a second sound along the second direction; a sound quality comparison unit comparing a sound quality of the first and second sounds; a changeover device for selecting one of the first and second sounds as the transmission speed sound; and a control device for allowing the changeover device to perform a changeover when a determination condition is fulfilled. |
