基于LabVIEW的声卡数据采集及滤波处理设计  

Design of the Filter with Data Acquisition by Using Audio-card Based on LabVIEW

作　　者：孙爱晶[1] 刘毓[1] 马贺洲[1] 

机构地区：[1]西安邮电学院通信工程系,西安710121

出　　处：《自动化与仪表》2009年第5期45-47,共3页Automation & Instrumentation

基　　金：陕西省自然科学基金项目(2006F16);陕西省教育厅自然科学项目(08JK427)

摘　　要：在LabVIEW的开发环境中,设计了基于PC机声卡的数据采集系统和滤波器,将计算机声卡作为数据采集部分的信号记录仪器,借助声卡中的A/D转换器,实现对声音信号的模数处理。同时,通过滤波器实现对采集的声音信号的滤波处理。实际应用表明,这种设计成本低、性价比高、使用简单、易操作,完全能够满足数据采集和滤波的要求。In the environment of LabVIEW development, the data acquisition system and filter design example based on the PC audio card were provided, by using the data acquisition card in computer as the signal recording device, and the A/D converter in audio card to make the A/D process for voice signal without any additional accessories, meanwhile, a variety of filters can be realized on the acquisition of the voice signal filtering treatment. The result shows easy-to-use, the application shows that the design with low cost and high performance can fully meet the data acquisition and filtering requirements.

关 键 词：声卡 LABVIEW 数据采集 滤波器 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]