The invention relates to a vehicle back row sound privacy protection method and system, and belongs to the technical field of privacy protection. The system comprises a data acquisition module, a sound processing module, a sound source positioning module, an instruction generation module and a control module, a final mask is obtained by processing a vehicle rear-row sound signal, a target human voice signal is obtained according to the final mask and the vehicle rear-row sound signal, and position information of five sense organs is obtained according to face image information of rear-row personnel. Obtaining a sound source direction, a first sound source coordinate and a second sound source coordinate according to the position information of the five sense organs and the signal intensity of the microphone array, obtaining a space compensation coefficient according to the first sound source coordinate and the second sound source coordinate, obtaining an offset sound wave signal according to the target human voice signal, and obtaining a loudspeaker driving signal according to the sound source direction and the space compensation coefficient; the sound wave counteracting control instruction is generated according to the counteracting sound wave signal, and the loudspeaker control instruction is generated according to the loudspeaker driving signal, so that the privacy protection of the rear-row personnel is realized, and the rear-row noise background is reduced.
本发明涉及一种车辆后排声音隐私保护方法及系统,属于隐私保护技术领域。本发明包括数据采集模块、声音处理模块、声源定位模块、指令生成模块和控制模块,通过处理车辆后排声音信号得到最终掩蔽,根据最终掩蔽和车辆后排声音信号得到目标人声信号,根据后排人员脸部图像信息得到五官位置信息,根据五官位置信息和麦克风阵列信号强度得到声源方向、第一声源坐标、第二声源坐标,根据第一声源坐标和第二声源坐标得到空间补偿系数,根据目标人声信号得到抵消声波信号,根据声源方向和空间补偿系数得到扬声器驱动信号,根据抵消声波信号生成声波抵消控制指令,根据扬声器驱动信号生成扬声器控制指令,实现了后排人员隐私保护,降低了后排噪音背景。
Vehicle back row sound privacy protection method and system
一种车辆后排声音隐私保护方法及系统
2024-08-09
Patent
Electronic Resource
Chinese
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