巴特沃斯滤波器的MatLab代码实现，可以对一段音频进行滤波，与其他滤波器进行对比-Butterworth filter of the MatLab code for implementation can be some audio filtering, comparison with other filters

Signal Processing is the process of measuring, manipulating or analysing information. Signals of interest include biomedical data, audio, still or moving images, radar, and even DNA. Filtering techniques can be crucial in revealing and interpreting