ETSI EG 201 377-1

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ETSI EG 201 377-1 English PDF Speech Processing, Transmission and Quality Aspects (STQ); Specification and measurement of speech transmission quality; Part 1: Introduction to objective comparison measurement methods for one-way speech quality across networks

standard published 04/01/1999 by European Telecommunications Standards Institute

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The specification of end-to-end speech transmission quality in fixed, mobile networks and interworking situations and the definition of appropriate test methods and test equipment.