3GPP Atlas

Canonical Atlas record

TS 26.204

Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code

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Responsible WGS4
StatusUnder change control
Initial releaseRel-5
Selected releaseRel-5
Latest indexed version19.0.0
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-55.4.02 WI16 CRs · 9 approved
Rel-66.1.00 WI4 CRs · 2 approved
Rel-77.1.01 WI4 CRs · 3 approved
Rel-88.0.00 WI0 CRs
Rel-99.0.00 WI0 CRs
Rel-1010.0.00 WI0 CRs
Rel-1111.0.00 WI0 CRs
Rel-1212.1.00 WI2 CRs · 1 approved
Rel-1313.1.00 WI2 CRs · 1 approved
Rel-1414.1.00 WI3 CRs · 1 approved
Rel-1515.0.00 WI0 CRs
Rel-1616.0.01 WI1 CR · 1 approved
Rel-1717.1.01 WI4 CRs · 1 approved
Rel-1818.0.00 WI0 CRs
Rel-1919.0.00 WI0 CRs

Rel-5 snapshot

Work affecting this release

16 indexed Change Requests · 2 connected Work Items.

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

CR 0005 — Correction for handling of RX_NO_DATA frames

CR 0006 — Ambiguous expressions in the AMR-WB Floating-point C-Code

CR 0006 rev.1 — Ambiguous expressions in the AMR-WB Floating-point C-Code

CR 0007 — Possible decoder LPC coefficients overflow

CR 0008 — Possible decoder LPC coefficients overflow

CR 0010 — Incorrect definition of vector nb_of_bits

CR 0013 — Robust operation of AMRWB-decoder

CR 0013 rev.1 — Robust operation of AMRWB-decoder

CR 0001 — Correction to log(0) error in VAD decision with low SNR input signals

CR 0001 rev.1 — Correction to log(0) error in VAD decision with low SNR input signals

CR 0002 — Correction to decoder with input of long sequence of NO_DATA frames

CR 0003 — Correction to D_UTIL_pow2 function to be bitexact with TS26.173 counterpart

Version history

Indexed versions

Showing 27 of 27 indexed versions.

19.0.0Rel-19SA#1092025-10-30
18.0.0Rel-18SA#1032024-05-15
17.1.0Rel-17SA#992023-03-30
17.0.0Rel-17SA#95-e2022-04-07
16.0.0Rel-16SA#822018-12-21
15.0.0Rel-15SA#802018-06-22
14.1.0Rel-14SA#762017-06-16
14.0.0Rel-14SA#752017-03-17
13.1.0Rel-13SA#712016-03-17
13.0.0Rel-13SA#702015-12-18
12.1.0Rel-12SA#672015-03-21
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
7.1.0Rel-7SA#372007-10-03
6.1.0Rel-6SA#372007-10-03
5.4.0Rel-5SA#372007-10-03
7.0.0Rel-7SA#352007-03-29
6.0.0Rel-6SA#262005-01-06
5.3.0Rel-5SA#262005-01-06
5.2.0Rel-5SA#212003-10-01
5.1.0Rel-5SA#192003-04-04
5.0.0Rel-5SA-#152002-03-28
2.0.0Rel-5 · pre-approvalSA-#152002-03-19
1.0.0Rel-5 · pre-approvalSA-#142002-01-02

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 26.204

AMRWB

Wideband Telephony Service - AMR

Rel-5official
AMRWB-FP

Floating-point ANSI-C code for the AMR-WB speech codec

Rel-5official
TEI7

(Small) Technical Enhancements and Improvements for Rel-7

Rel-7parsed
TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Historical association · verification pending
Rel-16historical link
TEI17

(Small) Technical Enhancements and Improvements for Rel-17

Rel-17parsed

Knowledge graph

Related standards

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