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Retrieval of beneficial information, knowledge and development of new methods can be carried out using data mining for visualizing and analyzing the data. In the environment several kinds of data are present and can be converted into distinct patterns. In automobile, every rotating machine components emit some kind of sound signals. These signals are due to vibration or friction of the rotating machine components. The emitted sound signal contains noise as well as useful data. The useful data provides the significance information about the machine operational status and can be employed for condition assessment of a rotating machine. This paper aims to describe the condition of automobile rotating machine using data mining approach through sound signals.