For the manufacturers of automobiles, automobile components and fuels, subjective equivalence relationships between vibration and sound can be used as a reference against which to plot the results from simulations or tests of specific operational conditions. The research described here was performed to define curves of subjective equivalence between steering wheel rotational vibration and sound using stimuli from different automobile operating conditions. The steering wheel acceleration stimuli were summarised in terms of the unweighted and Wh weighted r.m.s. values, while the sound stimuli were summarised in terms of the unweighted SPL in decibels, the A-weighted SPL in decibels, the Stevens Mark VI loudness in sones, the Stevens Mark VII loudness in sones and the Zwicker loudness in sones. The results suggest that both the statistical properties of the stimuli, and the choice of metric, effect the shape of the equivalence curve. No single combination of vibration and sound metric produced a family of curves which were separated by less than a single psychophysical just noticeable difference.
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机译：对于汽车，汽车零部件和燃料的制造商而言，振动和声音之间的主观等效关系可以用作参考，以绘制特定操作条件的模拟或测试结果。进行了此处描述的研究，以使用来自不同汽车工况的刺激来定义方向盘旋转振动和声音之间的主观等效曲线。根据未加权和Wh加权的r.m.s总结了方向盘加速度激励。值以分贝的未加权SPL，分贝的A加权SPL，音调的Stevens Mark VI响度，音调的Stevens Mark VII响度和音调的Zwicker响度来总结声音刺激。结果表明，刺激的统计属性和度量的选择都影响等效曲线的形状。没有单独的振动和声音指标组合产生一系列曲线，这些曲线之间的差异小于单个心理物理差异，只是明显的差异。
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