A new sound analysis algorithm based on improved Fourier analysis and wavelet analysis is adopted to establish a sound analysis model and apply it to complex industrial sound environments.This algorithm achieves real-time monitoring and early warning of equipment status and faults by analyzing various sound signals generated by industrial equipment.This algorithm adopts advanced signal processing technology,which can accurately identify various abnormal sounds.Compared with traditional methods,this algorithm has higher accuracy and helps improve the operational efficiency and safety of industrial equipment.This article provides a detailed introduction to the main technical principles and advantages of this algorithm,and elaborates on its application scenarios in complex industrial environments.