The invention discloses an active sound production control method, which comprises the following steps of: S1, analyzing a CAN (Controller Area Network) signal or receiving a vehicle machine control signal, and synthesizing an active sound audio signal; s2, arranging a plurality of loudspeakers in the vehicle, establishing a planar polar coordinate system in the vehicle, and calculating polar coordinates of sound waves in the planar polar coordinate system according to vehicle navigation direction and intersection distance information; and S3, determining a sound wave audio signal finally output by each loudspeaker channel. According to the sound production control method of the active sound, a sound intensity positioning method is used for enabling the active sound to be played in a positioned position in a vehicle in hearing sense, and the position of the active sound in the vehicle changes along with the change of the intersection distance, so that a driver can sense the navigation direction and distance information in hearing sense; according to the method, the driver is assisted to judge the navigation direction and distance in real time under the condition that the volume of the active sound is not reduced, so that the driving fun is increased and the driving safety is improved under the condition that the volume of the active sound is kept stable.
本发明公开了一种主动声浪的发声控制方法,包括:S1,解析CAN信号或者接收车机控制信号,合成主动声浪音频信号;S2,车内布置多个扬声器,在车内建立平面极坐标系,根据车辆导航方向与路口距离信息,计算声浪在平面极坐标系中的极坐标;S3,确定各扬声器通道最终输出的声浪音频信号。该主动声浪的发声控制方法使用声强定位法使主动声浪声音在听感上实现在车内定位位置播放,由于主动声浪声音的车内位置将随着路口距离的变化而变化,从而使驾驶者在听觉上感受到导航方向与距离信息,在不降低主动声浪声音音量的情况下辅助驾驶者对导航方向与距离进行实时判断,从而在保持主动声浪音量稳定的情况下,增加驾驶乐趣的同时提升驾驶安全性。
Sound production control method for active sound waves
一种主动声浪的发声控制方法
2023-09-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Development of Active Sound Control
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