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3GPP (GSM only) 46-series – CODECs

The technical specifications (TS) are displayed in blue, while the reports (TR) are shown in green.  TS that have been discontinued in earlier releases are indicated with a light blue color.  TR in the '9' range that have been stopped are highlighted in light green.  TS or TR with a yellow background indicate those updated at the latest  Q3-2025  Plenary Meetings, excepted if it is an automatic upgrade to Rel-19.  The new ones are displayed with a single red dotted overline.
001  002  006  007  008  010  011  012  020  021  022  031  032  041  042  051  053  054  055  060  061  062  076  081  082  085 
a vertical bar on the left means that the full text and graphic content are available online for this TS/TR
when it is darker, it means that all the figures have been redrawn, or that there are no figures
12 p.
 TS 46.001 REL  4 → 19 Full Rate Speech Processing Functions
13 p.
 TS 46.002 REL  4 → 19 Half Rate Speech Processing Functions
15 p.
 TS 46.006 REL  4 → 19 ANSI-C Code for Half Rate Speech Codec
18 p.
 TS 46.007 REL  4 → 19 Test Sequences for Half Rate Speech Codec
24 p.
 TS 46.008 REL  4 → 19 Performance Characterization of Half Rate Speech Codec
66 p.
 TS 46.010 REL  4 → 19 Full Rate Speech Transcoding
10 p.
 TS 46.011 REL  4 → 19 Substitution and Muting of Lost Frames for Full Rate Speech Channels
10 p.
 TS 46.012 REL  4 → 19 Comfort Noise aspects for Full Rate Speech Traffic Channels
47 p.
 TS 46.020 REL  4 → 19 Half Rate Speech Transcoding
11 p.
 TS 46.021 REL  4 → 19 Substitution and Muting of Lost Frames for Half Rate Speech Traffic Channels
14 p.
 TS 46.022 REL  4 → 19 Comfort Noise aspects for Half Rate Speech Traffic Channels
14 p.
 TS 46.031 REL  4 → 19 Discontinuous Transmission (DTX)for Full Rate Speech Traffic Channels
38 p.
 TS 46.032 REL  4 → 19 Voice Activity Detector (VAD) for Full Rate Speech Traffic Channels
15 p.
 TS 46.041 REL  4 → 19 Discontinuous Transmission (DTX) for Half Rate Speech Traffic Channels
22 p.
 TS 46.042 REL  4 → 19 Voice Activity Detector (VAD) for Half Rate Speech Traffic Channels
13 p.
 TS 46.051 REL  4 → 19 Enhanced Full Rate Speech Processing Functions
15 p.
 TS 46.053 REL  4 → 19 ANSI-C Code for Enhanced Full Rate Speech Codec
21 p.
 TS 46.054 REL  4 → 19 Test Sequences for Enhanced Full Rate Speech Codec
27 p.
 TR 46.055 REL  4 → 19 Performance Characterisation of Enhanced Full Rate Speech Codec
46 p.
 TS 46.060 REL  4 → 19 Enhanced Full Rate Speech Transcoding
12 p.
 TS 46.061 REL  4 → 19 Substitution and Muting of Lost Frames for Enhanced Full Rate Speech Traffic Channels
18 p.
 TS 46.062 REL  4 → 19 Comfort noise aspects for Enhanced Full Rate Speech Traffic Channels
50 p.
 TR 46.076 REL  4 → 19 AMR Speech Codec – Study Phase Report
15 p.
 TS 46.081 REL  4 → 19 Discontinuous Transmission (DTX) for Enhanced Full Rate Speech Traffic Channels
20 p.
 TS 46.082 REL  4 → 19 Voice Activity Detector (VAD) for Enhanced Full Rate Speech Traffic Channels
36 p.
 TR 46.085 REL  4 → 19 Subjective Tests on Interoperability of HR/FR/EFR Speech Codecs
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