3GPP Atlas

Canonical Atlas record

TS 26.104

ANSI-C code for the floating-point Adaptive Multi-Rate (AMR) speech codec

Open in graphCompare this specStandards catalogue
Search Rel-4 ↗JSON3GPP Portal ↗DynaReport ↗
Responsible WGS4
StatusUnder change control
Initial releaseRel-4
Selected releaseRel-4
Latest indexed version19.1.0
Series26
TypeTS

Release evolution

Compare evidence between releases

Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.

Release ledger

Version · WI · CR evidence by release

Rel-44.5.00 WI15 CRs · 13 approved
Rel-55.4.00 WI8 CRs · 4 approved
Rel-66.1.00 WI3 CRs · 1 approved
Rel-77.0.01 WI1 CR · 1 approved
Rel-88.0.01 WI0 CRs
Rel-99.0.00 WI0 CRs
Rel-1010.0.00 WI0 CRs
Rel-1111.0.00 WI0 CRs
Rel-1212.0.00 WI0 CRs
Rel-1313.0.00 WI0 CRs
Rel-1414.0.00 WI2 CRs
Rel-1515.0.00 WI1 CR
Rel-1616.0.01 WI2 CRs · 1 approved
Rel-1717.0.00 WI0 CRs
Rel-1818.1.01 WI2 CRs · 1 approved
Rel-1919.1.01 WI2 CRs · 1 approved
R99no version indexed10 WI14 CRs · 12 approved
Release 19993.5.00 WI0 CRs

Rel-4 snapshot

Work affecting this release

15 indexed Change Requests · 0 connected Work Items.

Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0025 — Correction on codec mode handling during DTX

CR 0028 — Correction on the implementation of the interface of decoder.c

CR 0028 rev.1 — Correction on the implementation of the interface of decoder.c

CR 0010 — Correction to make encoder and decoder memories independent

CR 0004 rev.1 — Limiting predicted codebook gain computing in encoder

CR 0002 — AMR Core Frame bit ordering (AMR speech Codec; Floating point C-Code)

CR 0008 rev.1 — Correction of mode state bug in AMR decoder

CR 0006 rev.1 — Correction of decoder operation in error concealment of lost frames

CR 0010 rev.1 — Correction to make encoder and decoder memories independent

CR 0012 rev.1 — Correction of decoder Reset

CR 0014 rev.1 — Correction of comfort noise parameter interpolation bug of AMR decoder

CR 0016 rev.1 — Correction of the TX_TYPE and RX_TYPE identifiers

Version history

Indexed versions

Showing 38 of 38 indexed versions.

19.1.0Rel-19SA#1122026-07-05
18.1.0Rel-18SA#1122026-07-05
19.0.0Rel-19SA#1092025-10-30
18.0.0Rel-18SA#1032024-05-15
17.0.0Rel-17SA#95-e2022-04-07
16.0.0Rel-16SA#812018-09-21
15.0.0Rel-15SA#802018-06-25
14.0.0Rel-14SA#752017-03-17
13.0.0Rel-13SA#702015-12-18
12.0.0Rel-12SA#652014-09-26
11.0.0Rel-11SA#572012-09-21
10.0.0Rel-10SA#512011-04-05
9.0.0Rel-9SA#462009-12-18
8.0.0Rel-8SA#422008-12-18
7.0.0Rel-7SA#362007-06-21
6.1.0Rel-6SA#232004-04-01
5.4.0Rel-5SA#232004-04-01
6.0.0Rel-6SA#222004-01-06
5.3.0Rel-5SA#222004-01-06
5.2.0Rel-5SA#202003-06-25
4.5.0Rel-4SA#202003-06-25
5.1.0Rel-5SA#192003-04-04
4.4.0Rel-4SA#192003-04-04
3.5.0Release 1999SA#192003-04-04
5.0.0Rel-5SA-#162002-06-28
4.3.0Rel-4SA-#152002-03-28
3.4.0Release 1999SA-#152002-03-28
4.2.0Rel-4SA-#132001-10-02
3.3.0Release 1999SA-#132001-10-02
4.1.1Rel-4SA-#122001-06-29
3.2.1Release 1999SA-#122001-06-29
4.1.0Rel-4SA-#122001-06-27
3.2.0Release 1999SA-#122001-06-27
4.0.0Rel-4SA-#102000-12-21
3.1.0Release 1999SA-#102000-12-21
3.0.0Release 1999SA-#82000-06-28
0.3.0Release 1999SA-#72000-03-15
0.1.0Release 1999SA-#61999-12-17

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 26.104

TEI7

(Small) Technical Enhancements and Improvements for Rel-7

Rel-7parsed
ICE

In Case of Emergency numbers storage and easy access on UICC

Rel-8official
TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Historical association · verification pending
Rel-16historical link
TEI18

(Small) Technical Enhancements and Improvements for Rel-18

Rel-18parsed
TEI19

(Small) Technical Enhancements and Improvements for Rel-19

Rel-19parsed
CSM

Codecs for Multimedia Telephony Service

R99official
Codec(s)_for_CS_MM_Tel._Serv

Codecs for Multimedia Telephony Service

R99official
Codec(s)_for_MM_Tel_Service

Codecs for Multimedia Telephony Service

R99official
Codec_for_Multimedia_Telephony

Codecs for Multimedia Telephony Service

R99official
Effective Acronym:

Codecs for Multimedia Telephony Service

R99official
Low_bit_rate_codec_for_MM_Tel.,H.324M

Codec for low bitrate multimedia telephony service

R99official
Mandatory_Speech_Codec,AMR-NB,AMR

Mandatory speech codec for narrowband telephony service

R99official
Multimedia_Codec

Codecs for Multimedia Telephony Service

R99official
TEI

(Small) Technical Enhancements and Improvements for R99

R99parsed
WI2MMC

Codecs for Multimedia Telephony Service

R99official

Knowledge graph

Related standards

No graph edges indexed yet. The graph API is available at this JSON endpoint.