All industrial equipment in operation generates vibrations and noise and we perceive and interpret them. Noise is therefore associated psychologically with the objects that emit them. The techniques of vibratory signal processing and generated sounds have allowed refining their perceptive impact and relating it to the structures characteristics. Our work essentially consists in establishing a relationship, or even a correlation, between the perceived sounds and the resulting vibrations. For this, we have studied the influence of the sound pressure level on the ability of auditors to identify the evolution of the defect severity. Two perceptual tests were performed: The first is carried out on sounds obtained directly by the conversion of vibratory signals measured on the machine. Conversely, the second test is conducted on the same sounds by equalizing their sound pressure levels, where the idea is to let the listeners focus on the content of the sounds but not on their pressure levels. The obtained results allowed the establishment of correlations between the objective and subjective aspects and to highlight the important relationships that exist between the vibratory indicators and the distances between the sounds in the proximity space. The obtained correlation coefficient from the second test, which is higher than that of the first one, shows that the equalization procedure of the sound pressure levels has a much more indicative impact on the identification of the evolution of the defects severity.

中文翻译：

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声压级对声音感知中齿轮传动缺陷严重程度识别的影响

所有运行中的工业设备都会产生振动和噪声，我们可以感知并解释它们。因此，噪音在心理上与发出它们的物体有关。振动信号处理和产生的声音的技术可以改善其感知影响并将其与结构特征相关联。我们的工作主要在于在感知到的声音和所产生的振动之间建立关系，甚至建立关联。为此，我们研究了声压级对审核员识别缺陷严重性演变能力的影响。进行了两个感知测试：第一个是对通过转换机器上测得的振动信号直接获得的声音进行的测试。反过来，第二项测试是通过均衡声音的声压级来对相同的声音进行的，其想法是让听众将注意力集中在声音的内容上，而不是他们的声压级上。获得的结果允许建立客观和主观方面之间的相关性，并突出显示振动指标与邻近空间中声音之间的距离之间存在的重要关系。从第二次测试获得的相关系数高于第一次测试的相关系数，表明声压级的均衡过程对缺陷严重性演变的识别更具指示性。这里的想法是让听众专注于声音的内容，而不是他们的压力水平。获得的结果允许建立客观和主观方面之间的相关性，并突出显示振动指标与邻近空间中声音之间的距离之间存在的重要关系。从第二个测试获得的相关系数高于第一个测试的相关系数，表明声压级的均衡过程对缺陷严重性演变的识别具有更大的指示性影响。这里的想法是让听众专注于声音的内容，而不是他们的压力水平。获得的结果允许建立客观和主观方面之间的相关性，并突出显示振动指标与邻近空间中声音之间的距离之间存在的重要关系。从第二次测试获得的相关系数高于第一次测试的相关系数，表明声压级的均衡过程对缺陷严重性演变的识别更具指示性。获得的结果允许建立客观和主观方面之间的相关性，并突出显示振动指标与邻近空间中声音之间的距离之间存在的重要关系。从第二个测试获得的相关系数高于第一个测试的相关系数，表明声压级的均衡过程对缺陷严重性演变的识别具有更大的指示性影响。获得的结果允许建立客观和主观方面之间的相关性，并突出显示振动指标与邻近空间中声音之间的距离之间存在的重要关系。从第二次测试获得的相关系数高于第一次测试的相关系数，表明声压级的均衡过程对缺陷严重性演变的识别更具指示性。