Design of sound card signal acquisition and analysis system based on Labview

With the development of computers technology,the application of virtual instrument becomes more and more widely.The system was designed for sound card signal acquisition and analysis through computer.By using the technology of Labview,the system could realize real-time sound signal acquisition,data memory,and spectral analysis and display the result.This system had used the sound card of pc,had characters of low-cost,convenient and flexible in use.