基于 LabVIEW 和声卡的虚拟音频分析仪的设计方法，该方法实现简单、性价比高。 生成的人 机界面交互性好，操作方便，并且可以根据用户的需求进行功能扩充，为低成本下构建虚拟仪器提供了一种思路。-A design of virtual audio analyzer which is based on LabVIEW and the sound card is presented. The method is simple and has high cost performance.