基于虚拟仪器的音频采集分析系统设计

Design of Audio Acquisition and Analysis System Based on Virtual Instrument

本文将声卡技术与虚拟仪器相结合,提出在LABVIEW中进行音频的采集和分析方案。由于传统的音频采集卡价格比较高,而且兼容性差,因此,本文设计的方案在计算机上配置声卡具有良好的实用性,并且价格低廉。该系统可在LABVIEW环境中实现了音频信号的采集、存储和信号分析等功能。实验表明:该方案具有设计简便、通用性高、成本低、扩展性好等优点,可推广到工程测量监测和实验室等领域。

The sound card technology combined with virtual instrument, this paper puts forward in LABVIEW audio collection and analysis of the scheme.Due to the traditional audio acquisition card price is quite high, and the compatibility is poor, therefore, in this paper, the scheme of design configuration on computer sound card has a good practicability, and low cost.The system can be implemented in LABVIEW environment audio signal acquisition, storage, and signal analysis, etc.Experiments show that this scheme has a simple design, high versatility, low cost, as well as good scalability, can be extended to engineering surveying surveillance and laboratory, etc.