Machine Tool Acoustic Dataset: Drilling and Lathe Operations During Idling and Machining

This dataset contains experimental acoustic measurements collected from drilling and lathe machine tools under different operating conditions. The data were recorded using a 31-channel microphone array to capture the acoustic signatures generated during machine operation. Two primary operating states are included in the dataset: idling condition, where the machine runs without material removal, and machining (in-process) condition, where active cutting or drilling operations are performed. The dataset is intended to support research in machine tool noise analysis, acoustic source localization, and signal processing techniques such as beamforming. The recorded acoustic signals can be used to study noise generation mechanisms in machining processes and to evaluate advanced noise imaging algorithms. In addition to the acoustic measurement files, the dataset also includes the spatial coordinates of the microphone array used during the experiments. The microphone array geometry is provided in terms of the position coordinates of each microphone, which are essential for performing array signal processing and beamforming analysis. The data are organized into separate folders corresponding to the different machine tools and operating conditions, including: Drilling machine (idling condition) Drilling machine (machining/in-process condition) Lathe machine (idling condition) Lathe machine (machining/in-process condition) Microphone array coordinate file These datasets can be used for research and development in acoustic imaging, noise source localization, machine condition monitoring, and experimental validation of signal processing algorithms.本数据集收录了不同工况下钻床与车床两类机床的实验声学测量数据。实验采用31通道麦克风阵列（31-channel microphone array）采集机床运行过程中产生的声学特征信号。数据集包含两类核心运行状态：其一为空转工况，即机床未进行材料去除作业的运行状态；其二为加工（在线）工况，即执行实际切削或钻孔作业的运行状态。 本数据集可支撑机床噪声分析、声源定位以及波束成形（beamforming）等信号处理技术相关研究。所录制的声学信号可用于探究加工过程中的噪声产生机理，并用于评估先进噪声成像算法的性能。 除声学测量文件外，本数据集还包含实验所用麦克风阵列的空间坐标信息。数据集以各麦克风的位置坐标形式提供了阵列几何参数，这是开展阵列信号处理与波束成形分析的必要前提。 本数据集按不同机床与工况分为独立文件夹，具体包括： 钻床（空转工况） 钻床（加工/在线工况） 车床（空转工况） 车床（加工/在线工况） 麦克风阵列坐标文件 本数据集可应用于声学成像、声源定位、机床状态监测以及信号处理算法实验验证等领域的研发工作。