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2009-5-2 23:17 1368 0 分类: 测试测量
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Audio Test Technical Library



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Overview


Audio test applications are concerned with the quality of sound from devices including speakers, amplifiers, and microphones. Engineers perfrom linearity characterization, distortion measurements, sound quality analysis, rub and buzz, and others. Audio measurements are highly demanding, requiring high-quality signal acquisition, complex scaling, extensive analysis, and multiple graphical presentations.




Contents

 



Hardware and Software Products


An overview of National Instruments tools for audio test

 


Tutorials and White Papers


Understand the technologies and techniques behind audio analysis and test

 


Webcasts and Interactive Demos


View videos and presentations

 


Example Programs and Projects


Download code for implementing audio test systems

 


Case Studies


Learn how audio test designers and engineers have implemented systems

 


Ready-to-Run Solutions and System Integrators


Explore standardized applications customized solutions for audio test


 

Hardware and Software Products

 

Explore the hardware and software products from NI designed for audio test systems. 


Featured Resource: NI 4461 - 24-bit input and output with 118 dB dynamic range




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Tutorials and White Papers

 

These tutorials and white papers provide information on architecting audio test systems.


Featured Resource: Audio Measurements Made Easy with LabVIEW



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Webcasts and Interactive Demos

 

Videos and presentations from NI and other engineers covering various aspects of audio test.


Featured Resource:  Audio Fundamentals 101: Analog Audio Test and Measurement



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Example Programs and Projects

 

NI LabVIEW code and NI Sound and Vibration Assistant projects available for download for audio test analysis.


Featured Resource: Swept Sine Frequency Response (DAQmx)



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Case Studies

 

Read how other acoustic engineers and audio test system designers have implemented customized test solutions with National Instruments tools.




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Ready-to-Run Solutions and System Integrators

 

These products and solutions from National Instruments partners and integrators provide out-of-the-box applications for automated audio test.


 



  • AudioMASTER by microLEX - Automated analysis and test of audio components such as hearing aids, headsets, telephones, and other transducers with a simple task-oriented user interface
  • SoundCheck by Listen, Inc. - A flexible software-based audio test system, including a spectrum analyzer, real-time analyzer, signal generator, multimeter, and oscilloscope

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2 ratings | 5.00 out of 5
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Legal
This tutorial (this "tutorial") was developed by National Instruments ("NI"). Although technical support of this tutorial may be made available by National Instruments, the content in this tutorial may not be completely tested and verified, and NI does not guarantee its quality in any way or that NI will continue to support this content with each new revision of related products and drivers. THIS TUTORIAL IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND AND SUBJECT TO CERTAIN RESTRICTIONS AS MORE SPECIFICALLY SET FORTH IN NI.COM'S TERMS OF USE (http://ni.com/legal/termsofuse/unitedstates/us/).



 


 


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