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

• Published in: IEEE transactions on instrumentation and measurement Vol. 42; no. 4; pp. 799 - 805
• Main Authors: Dimolitsas, S., Corcoran, F.L., Phipps, J.G., Baraniecki, M.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.08.1993; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Exact sciences and technology; Instruments; Knowledge based systems; Noise level; Particle measurements; Performance evaluation; Speech coding; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Telegraphy; Telephony; Testing; Transmission and modulation (techniques and equipments); Performance evaluation; Transmission channel; Measurement method; Telephone; Speech transmission; Coding
• ISSN: 0018-9456; 1557-9662
• DOI: 10.1109/19.234488

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.< >