t7345s 发表于 2015-1-29 22:17:52

ETSI EG 201 377-2 V1.1.1 (2004-04)

ETSI EG 201 377-2 V1.1.1 (2004-04)
ETSI Guide
Speech Processing, Transmission and Quality Aspects (STQ);
Specification and measurement of
speech transmission quality;
Part 2: Mouth-to-ear speech transmission
quality including terminals


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admin 发表于 2015-1-30 11:45:00

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