汽车雨刮器声品质的主客观分析

对4辆不同类型汽车的雨刮器在高低速挡位下工作时所产生的车内噪声进行了测试,根据雨刮器的噪声信号特性制作了主观实验所需声样本.采用分组成对比较法对所得样本进行了烦恼度主观评价实验,从速度挡位、刮刷方式两个方面分析了主观得分值的分布特性和4个心理学参量对主观烦恼度的影响.结果表明,高速挡的烦恼度高于低速挡,下刮对总体烦恼度的影响程度高于上刮,影响主观烦恼度的客观参量主要有双耳响度和波动度.

Subjective and objective analysis on the sound quality of automotive wiper system

Car interior noise induced by windshield wiper system is tested for four different types of cars under high and low wiping speeds,and sound samples for subjective annoyance study are prepared. Grouped pair-wise comparison is adopted for the subjective evaluation test. The characteristic of subjective values and relation of four psychoacoustic parameters to the subjective annoyance are analyzed in two wiping speeds and various wiping patterns. The results indicate that the annoyance caused by wiper noise at high speed is higher than that at low speed,and downwards wiping noise is more annoying than upwards wiping noise. The work concluded that the subjective annoyance of noise from wiper system could be described by binaural loudness and fluctuation.