音效卡频谱分析，示波器，带有很多的使用功能，能实时捕捉和显示震幅很小的波形-Sound card spectrum analyzer, oscilloscope, with the use of many functions in real-time capture and display a small amplitude waveform

handan001用于Winamp2.0插件的光谱分析器源代码-the spectrum analyzer the handan001 for Winamp2.0 plug source code

spectrum class to multichannel analyzer