Provided is an in-vehicle communication assistance system that cancels unwanted voices and relays speaking voices. A first variable filter (31) generates a cancelling sound that cancels the sound of a second seat audio source (1) at the first seat, by using the sound of the second seat audio source (1) as an input. The transfer functions of the first variable filter (31) and the second variable filter (36) are updated, so that the level of a signal (Eu) obtained by subtracting, from the output of the first seat microphone (9), the output of an auxiliary filter (35) for generating a correction signal for correcting the position difference between the first seat microphone (9) and the first seat, and the output of a second variable filter (36) having the sound of the first seat audio source (2) as the input is minimized. When the level of the signal (Eu) exceeds the threshold value, the signal (Eu) is relayed as speech speech to the second seat.
提供取消不需要音而中继发言语音的“车内交流辅助系统”。第一可变滤波器(31)以第二座位音频源(1)的音为输入而生成在第一座位处取消第二座位音频源(1)的音的取消音。第一可变滤波器(31)和第二可变滤波器(36)的传递函数被更新,以使从第一座位麦克风(9)的输出减去生成校正第一座位麦克风(9)和第一座位的位置之差的校正信号的辅助滤波器(35)的输出、和以第一座位音频源(2)的音为输入的第二可变滤波器(36)的输出后的信号(Eu)的电平成为最小。在信号(Eu)的电平超过了阈值的期间,将信号(Eu)作为发言语音而中继给第二座位。
In-vehicle alternating current auxiliary system
车内交流辅助系统
2022-01-04
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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