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Estimation of digital low-rate encoded voice link performance from instrumental measurements

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4 Author(s)
S. Dimolitsas ; COMSAT Lab., Clarksburg, MD, USA ; F. L. Corcoran ; J. G. Phipps ; M. Baraniecki

The correlation between subjective and instrumental assessments of low-rate digital voice coder transparency to voice and nonvoice signals is quantified. The instrumental, or objective, performance and subjective voice quality of eight low-rate digital voice processors were compared by correlating the results obtained from a set of multilingual subjective assessments with the results obtained from a series of instrumental measurements employing readily available, analog interface-based techniques. The results show that meaningful information on link performance with voice signals can be obtained over a wide range of engineered link quality using instrumental technology employing nonvoice signals

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IEEE Transactions on Instrumentation and Measurement  (Volume:42 ,  Issue: 4 )