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开发了由386微机和数据采集卡组成的多用途音频信号采集与处理系统,其内容包括硬件设计和软件设计。该系统首先对音频信号进行数字化处理,再利用适当的软件完成各种调制、解调、滤波等处理过程,并能在显示器上动态显示其各中间处理过程及处理结果的时间波形、频谱图。该系统可为实验教学提供性能价格比较高的适应性较强的实验设备
Developed by the 386 microcomputer and data acquisition card composed of multi-purpose audio signal acquisition and processing system, which includes hardware design and software design. The system first digitizes the audio signal and then completes various modulations, demodulations, filters, etc. using appropriate software and dynamically displays the temporal waveforms and spectrograms of its intermediate processing and processing results on the display. The system for experimental teaching to provide high performance and high adaptability of the experimental equipment