小波包分析提取振动信号中的特征频率，以及能量谱分析计算-wavelet packet analysis vibration signal from the characteristic frequency, and the energy spectrum analysis -Extraction of wavelet packet analysis in the vibration signal characteristic frequency, as well as the calculati

一个非常好的VB开发的通过声卡采集波形的程序，达到声音测量，声音振动FFT分析功能-VB developed a very good through the sound card collection waveform procedures, to achieve sound measurement, sound and vibration analysis of FFT function