Abstract: 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.

Key words: Loudness; Evaluation model; Psychoacoustics; Noise

摘要： 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。

关键词: 响度；评价模型；心理声学；噪声