The effects of sound level and vibration magnitude on the relative discomfort of noise and vibration.
The effects of sound level and vibration magnitude on the relative discomfort of noise and vibration.
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DOI：
10.1121/1.4705285
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发表时间：
2012-06
期刊：
影响因子：
--
通讯作者：
Yu Huang;M. Griffin
中科院分区：
文献类型：
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作者：
Yu Huang;M. Griffin
在一项有20名受试者的实验室研究中，研究了噪音和振动引起的相对不适感，这种不适感如何取决于噪音的水平和振动的大小，以及噪音和振动是同时呈现还是顺序呈现。用7级噪声和7级振动的所有49种组合再现噪声和垂直振动，以允许使用幅度估计来判断其中一种刺激引起的不适相对于另一种刺激。在四个疗程中，受试者判断噪音相对于振动，振动相对于噪音，同时和顺序呈现刺激。噪声和振动的等价性并不很大程度上取决于刺激是同时的还是顺序的，而是高度依赖于是相对于振动来判断噪声还是相对于噪声来判断振动。在判断噪音时，较高震级的振动似乎掩盖了低噪音造成的不适。在判断振动时，较高水平的噪音似乎掩盖了低强度振动造成的不适。对振动不适的判断受噪声的影响大于对噪声不适的判断受振动的影响。
The relative discomfort caused by noise and vibration, how this depends on the level of noise and the magnitude of vibration, and whether the noise and vibration are presented simultaneously or sequentially has been investigated in a laboratory study with 20 subjects. Noise and vertical vibration were reproduced with all 49 combinations of 7 levels of noise and 7 magnitudes of vibration to allow the discomfort caused by one of the stimuli to be judged relative to the other stimulus using magnitude estimation. In four sessions, subjects judged noise relative to vibration and vibration relative to noise, with both simultaneous and sequential presentations of the stimuli. The equivalence of noise and vibration was not greatly dependent on whether the stimuli were simultaneous or sequential, but highly dependent on whether noise was judged relative to vibration or vibration was judged relative to noise. When judging noise, higher magnitude vibrations appeared to mask the discomfort caused by low levels of noise. When judging vibration, higher level noises appeared to mask the discomfort caused by low magnitudes of vibration. The judgment of vibration discomfort was more influenced by noise than the judgment of noise discomfort was influenced by vibration.