说明：  应用基于LabVIEW的虚拟仪器的构建方法，搭建和开发了音频信号频 谱测试系统，并与传统音频频谱仪所测得的频谱进行比较。系统的研发成功，能 极大地提高了频谱测试的效率，保证了测试系统的准确性、稳定性及安全性，且 具有成本低廉和开发周期较短的特点，对设计和研发类似测试系统具有一定的推 广价值。同时，本文给出了系统软硬件的设计方案，做出了可行的解决方案。
(Application based on LabVIEW virtual instrument approach to building structures and the development of audio signal spectrum measurement system, and with the traditional audio spectrum analyzer spectrum measured for comparison. The successful development of the system, can greatly improve the efficiency of spectrum testing to ensure test accuracy, stability and security, and has a low cost and shorter development cycle characteristic of the design and development of similar test system has a certain promotional value. Meanwhile, this paper presents the system hardware and software design to make a viable solution.)