| 摘要 |
PROBLEM TO BE SOLVED: To achieve conversation between a person seated in a front seat and one seated in a rear seat. SOLUTION: A voice, that is inputted to a rear seat microphone 1, is outputted to a front seat loudspeaker 8 via a voice-switching section 5, and voice that is inputted to a front seat hands-free microphone 2 is outputted to a rear seat loudspeaker 9 via the voice-switching section 5. In that case, when there is output A from the front seat loudspeaker and output B for the rear seat loudspeaker from an audio apparatus 7, the output A for the front seal loudspeaker and the output B for the rear seal loudspeaker are silenced by the voice-switching section 5 and are mixed with voice, even if a vehicle passenger does not operate, thus achieving the conversation between a person at a front seat and a person at a rear seat, without being interfered with the output A for the front seat loudspeaker and the output B for the rear seat loudspeaker from the audio apparatus 7. |
