基于声卡的数据采集与分析软件 数据采集回放 滤波处理-Data acquisition and analysis software based on sound card

Labview基于声卡的频谱分析 声卡采集声音数据,显示其波形,通过滤波器和加窗处理进行功率谱分析-Labview based sound card spectrum analysis Sound card data collection, display its waveform, through the filter and window processing power spectrum analysis

用声卡进行数据采集，产生一正弦波，计算机通过扬声器把此正弦波用声音的形式发出；用话筒，把声音采集，然后比较这两种信号(Using sound card to collect data and produce a sine wave, the computer sends out the sine wave in the form of sound by means of loudspeaker, and uses microphone to collect the sound, then com