VQAlib™

Voice Quality Analysis Library

Create your own custom P.862 Perceptual Evaluation of Speech Quality (PESQ) voice quality analysis programs quickly and easily. VQAlib™ comes complete with a single-user PESQ DLL executable, LabVIEW™ VIs and a sample voice quality analysis application.

Using National Instrument’s LabVIEW™ development environment you can rapidly develop applications that are suited to your specific test and measurement needs. Add VQAlib™ to your application, and the world of objective speech quality analysis is at you finger-tips.

VQAlib™ supports Narrowband, HATS, and Wideband analysis modes. VQAlib™ requires Reference and Degraded input signal arrays of single precision numbers. Sample rates for input data of 8kHz and 16kHz are supported. VQAlib™ scores your speech data using the ITU P.862 Perceptual Evaluation of Speech Quality (PESQ) objective voice quality measurement algorithm. PESQ and Mean Opinion scores (MOS) are provided as outputs from VQAlib™.

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