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TR 46.085 (SA4)
Subjective tests on the interoperability of the Half Rate / Full Rate / Enhanced Full Rate (HR/FR/EFR) speech codecs, single, tandem and tandem free operation

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V14.0.0 (PDF)    2017/03    36 p.
V13.0.0    2015/12    36 p.
V12.0.0    2014/09    36 p.
V11.0.0    2012/09    36 p.
V10.0.0    2011/04    36 p.
V9.0.0    2009/12    36 p.
V8.0.0    2008/12    36 p.
V7.0.0    2007/06    36 p.
V6.0.0    2005/01    36 p.
V5.0.0    2002/06    36 p.
V4.0.0    2001/04    36 p.

Rapporteur:  Mr. Usai, Paolino
Antecedent:  TR 06.85    

This TR contains the results obtained from an internationally co-ordinated subjective evaluation conducted by four laboratories to estimate the performance in mobile-to-mobile connections of the GSM half, full, and enhanced full rate speech codecs (including the expected advantages of the Tandem Free Operation), in case of interoperability in the digital cellular telecommunications system. These (listening-only) tests did not include the effects of Voice Activity Detector, Comfort Noise Insertion and the Discontinuous Transmission.


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