PRETS 300 967 : NOV 97
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); HALF RATE SPEECH; ANSI-C CODE FOR THE GSM HALF RATE SPEECH CODEC (GSM 06.06 VERSION 5.1.0)
07-23-2013
01-12-2013
This European Telecommunication Standard (ETS) contains an electronic copy of the ANSI-C code for the GSM half rate codec. The ANSI-C code is necessary for a bit exact implementation of the half rate speech transcoder (GSM 06.20 (ETS 300 969) [2]); Voice Activity Detector (GSM 06.42 (ETS 300 973) [6]), comfort noise (GSM 06.22 (ETS 300 971) [4]), Discontinuous Transmission (GSM 06.41 (ETS 300 972) [5]) and example solutions for substituting and muting of lost frames (GSM 06.21 (ETS 300 970) [3]).
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