ON-VEHICLE AUDIO APPARATUS WITH EXTERNAL-VEHICLE SOUND-INTRODUCING FUNCTION

摘要

PROBLEM TO BE SOLVED: To enable introduction of an external-vehicle sound even when a gear position is changed to "reverse" immediately after turning on an ignition key switch to start the engine.SOLUTION: An input switcher 36 inputs a sound signal from a mike unit 12 and from plural category sound sources 26, 28, 30 enabled to switch over by a user input switchover operation. A computing unit 54 controls the input switcher 36 via software processing based on a user input switchover operation and causes the input switcher 36 to output a sound signal of a relevant sound source. A switchover controller 20 controls the input switcher 36 via hardware processing when a reverse signal is input and causes the input switcher 36 to output a sound signal from the mike.