Design of Audio Signal Testing and Analysis System Based on Virtual Instrument

Nan Quan Zhou

doi:10.4028/www.scientific.net/AMR.490-495.208

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 490-495Design of Audio Signal Testing and Analysis System...

Design of Audio Signal Testing and Analysis System Based on Virtual Instrument

Abstract:

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.

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Periodical:

Advanced Materials Research (Volumes 490-495)

Pages:

208-212

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.490-495.208

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Online since:

March 2012

Authors:

Nan Quan Zhou

Keywords:

Audio Signal, Data Acquisition (DAQ), Sound Card, Virtual Instrument (VI)

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