| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an audio apparatus for vehicle wherein a pair of left and right speakers are assembled to a headrest of each seat so that people taking respective seats can listen to sound from separately independent sound sources to reduce surrounding noise, or to mix sound in a vehicle and sound at the outside of the vehicle and to output the resulting sound from the speakers. <P>SOLUTION: The audio apparatus for vehicle is provided with a microphone 111 for picking up sound at the outside of the vehicle, a microphone 121 for picking up sound in the vicinity of the headrest, the microphone 111 for picking up the sound at the outside of the vehicle is connected to a mixer 69 and a changeover switch 79 via a changeover switch 11, an inverting output by a phase inverter 116 and an in-phase output from an output of a microphone 112 for picking up the sound in the vehicle is switched by a configuration 117, on the other hand, the selected output is fed to a mixer and a changeover switch 79 through the changeover switch 114, and the mixer 69 mixes the output with an output of a decoder 65 for outputting a sound signal from a sound source to superimpose them. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
