基于响度的汽车声品质评价

Loudness-based Sound Quality Evaluation of Vehicle

随着对汽车车内噪声评价的深入研究,发现传统上只用A计权声压级对车内噪声进行评价有很多不足,不能反映人们对噪声的主观感受。文章对人耳生理基础及心理声学进行了研究,引入了响度这一心理声学客观参量对车内噪声进行评价。对响度计算方法进行了研究,建立了Zwicker响度计算模型,并用Matlab实现了其计算。选取一段纯电动汽车在加速工况下的声音样本进行计算并与Head Artemis软件计算的结果进行对比,误差很小,证明了程序的正确性。

With more and more in-depth research on the evaluation of vehicle interior noise,it is found that the traditional evaluation of interior noise using only A-weighted sound pressure level has many shortcomings and cannot reflect people's subjective perception of noise.The article investigates the physiological basis of the human ear and psychoacoustics,and introduces loudness as an objective psychoacoustic parameter for the evaluation of interior noise.The loudness calculation method was studied,and the Zwicker loudness calculation model was established and implemented in Matlab.The results were compared with those calculated by Head Artemis software,and the errors were very small,which proved the correctness of the procedure.