matlab调用计算机声卡，实时显示计算机播放的声强级，使用数据获取工具箱，强烈推荐-call matlab computer sound cards, real-time display of the computer to play sound intensity level, the use of data acquisition toolbox, strongly recommend

MATLAB编程，调用声卡发出一系列不同频率的正弦波，可用于测试声学信道频率响应情况或其他用途。-MATLAB programming, calling card to issue a series of sine waves of different frequencies can be used to test the frequency response of the acoustic channel or other purposes.

基于声卡和MATLAB的语音信号采集与部分滤波加窗分帧快速傅里叶变换处理程序-Based on sound card and MATLAB voice signal acquisition and partial filter and window frame rapid Fourier transform processing program