基于NI的声压数据采集卡，利用labview程序采集15路麦克风信号并保存-The sound pressure based on NI data acquisition card, use 15 mic labview signal acquisition process and save

声卡的双声道模拟输出，信号的采集与存储，信号的功率(Power spectrum analysis based on labview and data acquisition card, sound card, two-channel analog output signal acquisition and storag)