| 摘要 |
An accelerator position (APO), drive torque (Td), vehicle speed (VSP), vehicle longitudinal acceleration (G), and the like are used as sound volume control parameters, and these sound volume control parameters are taken in from an interface (I/F) (3). A delay control unit (4) delays the sound volume control parameters (APO, Td, VSP, G, and the like), and sends delayed sound volume control parameters (APO', Td', VSP', G', and the like) to an acceleration sound signal generation unit (5). The acceleration sound signal generation unit (5) generates an acceleration sound signal (Sacc) on the basis of the delayed sound volume control parameters (APO', Td', VSP', G', and the like), an acceleration sound signal-to-voltage conversion unit (6) converts the acceleration sound signal (Sacc) to speaker drive voltage (Vacc), the speaker drive voltage is amplified by an amplifier (AMP) (7) , and acceleration sound is outputted by the drive of a speaker (1). |
