Software oscilloscope for audio input

基于VC6.0开发的虚拟示波器，通过声卡采集到信号，进行波形显示。-VC6.0 developed based on the virtual oscilloscope, the signal collected through the sound card, the waveform display.

基于音频波形发生器，可以输出正弦波，方波等波形。-The waveform generator of this paper is a development platform based on MATLAB, using the sound card output, and then connected to the op amp circuit with an oscilloscope, so that observed on an oscilloscope. After repeated t