Design of audio signal testing and analysis system based on virtual instrument

被引:0
|
作者
Zhou, Nanquan [1 ]
机构
[1] Chongqing Aerosp Polytech Coll, Dept Elect Engn, Chongqing 400021, Peoples R China
关键词
sound card; audio signal; data acquisition; virtual instrument;
D O I
10.4028/www.scientific.net/AMR.490-495.208
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
An audio signal acquisition and analysis system with low-cost and high performance was developed, taking LabVIEW as the software development platform and the computer sound card as hardware platform. This system is capable of audio signal acquisition, real time dynamic display, analysis processing, storage and display of audio signal. Practical application shows that this system not only has those advantages such as high-precision, stability, reliable performance and being easy-operated, but also can achieve common data-acquisition within the designed frequency range of the sound card. The signal acquisition technology based on the sound card, especially the technology combining with virtual instruments has broad prospects in the field of engineering test measurement and teaching practice.
引用
收藏
页码:208 / 212
页数:5
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