声卡是个人电脑中不可缺少的一部分，同时也是一个很好的A/D，D/A卡，本软件充分利用了这一功能。本软件实现了示波器，信号发生器，频率计，万用表的功能，在音频范围内可完全替代上述仪器。这并不是仿真软件，而是实用的工具，这些虚拟仪器可以很好的工作。最简单的应用只需要两根电缆，一根输入，一根输出。-PC sound card is an indispensable part, it is also a good A / D, D / A card. The software makes full use of this function. Implementation of the software oscilloscope, signal generator, frequency meter, multimeter functions, Audio can be within the scope of completely replacing this equipment. This is not a simulation software, but a useful tool for these virtual machines can be good work. The most simple application need only two cables, one input and one output.