Canonical Atlas record

TS 26.131

Terminal acoustic characteristics for telephony; Requirements

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Responsible WGS4

StatusUnder change control

Initial releaseRel-4

Selected releaseRel-12

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-44.2.01 WI9 CRs · 2 approved

Rel-55.2.03 WI5 CRs · 3 approved

Rel-66.1.02 WI14 CRs · 5 approved

Rel-77.1.01 WI3 CRs · 1 approved

Rel-88.3.02 WI11 CRs · 5 approved

Rel-99.5.02 WI14 CRs · 6 approved

Rel-1010.5.02 WI29 CRs · 8 approved

Rel-1111.3.01 WI20 CRs · 5 approved

Rel-1212.5.05 WI19 CRs · 7 approved

Rel-1313.4.02 WI16 CRs · 6 approved

Rel-1414.2.02 WI8 CRs · 3 approved

Rel-1515.2.02 WI6 CRs · 4 approved

Rel-1616.0.01 WI4 CRs · 1 approved

Rel-1717.3.02 WI8 CRs · 4 approved

Rel-1818.1.02 WI9 CRs · 4 approved

Rel-1919.0.00 WI0 CRs

R99no version indexed2 WI12 CRs · 7 approved

Release 19993.4.00 WI0 CRs

Rel-12 snapshot

Work affecting this release

19 indexed Change Requests · 5 connected Work Items.

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

CR 0057 rev.1 — Update acoustic requirements specification to cover MTSI speech-only services over LTE (narrowband and wideband)

CR 0061 — STMR – adaptation to modern form factors

CR 0061 rev.1 — STMR – adaptation to modern form factors

CR 0061 rev.2 — STMR – adaptation to modern form factors

CR 0062 — LTE UE delay requirements

CR 0062 rev.1 — LTE UE delay requirements

CR 0063 — Acoustic requirements for super-wideband and fullband telephony

CR 0063 rev.1 — Acoustic requirements for super-wideband and fullband telephony

CR 0063 rev.2 — Acoustic requirements for super-wideband and fullband telephony

CR 0064 — CR 26.131- 0064 Correcting inconsistent receive distortion value between narrowband and wideband (for ratio at -3 dBm0) (Release 12)

CR 0065 — CR 26.131-0065 Aligning requirements in TS 26.131 to test conditions in TS 26.132 related to free-field correction for hands-free modes (Release 12)

CR 0065 rev.2 — CR 26.131-0065 rev 2 Aligning requirements in TS 26.131 to test conditions in TS 26.132 related to free-field correction for hands-free modes (Release 12)

Version history

Indexed versions

Showing 60 of 62 indexed versions.

19.0.0Rel-19SA#1092025-10-21

18.1.0Rel-18SA#1032024-03-26

18.0.0Rel-18SA#98-e2023-01-06

17.3.0Rel-17SA#98-e2023-01-06

17.2.0Rel-17SA#97-e2022-09-23

17.1.1Rel-17SA#94-e2022-01-12

17.1.0Rel-17SA#94-e2022-01-11

17.0.0Rel-17SA#93-e2021-09-24

16.0.0Rel-16SA#852019-09-27

15.2.0Rel-15SA#852019-09-27

14.2.0Rel-14SA#852019-09-27

15.1.0Rel-15SA#812018-09-21

15.0.0Rel-15SA#802018-06-25

14.1.0Rel-14SA#762017-06-16

13.4.0Rel-13SA#762017-06-16

14.0.0Rel-14SA#752017-03-17

13.3.0Rel-13SA#722016-06-24

13.2.0Rel-13SA#712016-03-17

12.5.0Rel-12SA#712016-03-17

13.1.0Rel-13SA#702015-12-18

13.0.0Rel-13SA#692015-09-24

12.4.0Rel-12SA#682015-06-26

12.3.0Rel-12SA#662014-12-22

12.2.0Rel-12SA#652014-09-26

9.5.0Rel-9SA#622013-12-19

12.1.0Rel-12SA#622013-12-19

11.3.0Rel-11SA#622013-12-19

10.5.0Rel-10SA#622013-12-19

12.0.0Rel-12SA#602013-06-27

11.2.0Rel-11SA#592013-03-20

11.1.0Rel-11SA#582012-12-20

11.0.0Rel-11SA#572012-09-21

10.4.0Rel-10SA#542011-12-21

10.3.0Rel-10SA#532011-09-30

10.2.0Rel-10SA#522011-06-17

9.4.0Rel-9SA#512011-04-01

8.3.0Rel-8SA#512011-04-01

10.1.0Rel-10SA#512011-04-01

10.0.0Rel-10SA#492010-10-01

9.3.0Rel-9SA#472010-04-06

9.2.0Rel-9SA#452009-10-01

8.2.0Rel-8SA#452009-10-01

9.1.0Rel-9SA#442009-06-12

8.1.0Rel-8SA#442009-06-12

9.0.0Rel-9SA#432009-03-20

8.0.0Rel-8SA#422008-12-18

7.1.0Rel-7SA#382007-12-19

7.0.0Rel-7SA#362007-06-21

6.1.0Rel-6SA#352007-03-29

6.0.0Rel-6SA#252004-09-30

5.2.0Rel-5SA-#172002-09-24

4.2.0Rel-4SA-#172002-09-24

3.4.0Release 1999SA-#172002-09-24

5.1.0Rel-5SA-#132001-10-02

4.1.0Rel-4SA-#132001-10-02

3.3.0Release 1999SA-#132001-10-02

5.0.0Rel-5SA-#112001-04-10

4.0.0Rel-4SA-#112001-04-10

3.2.0Release 1999SA-#112001-04-10

3.1.0Release 1999SA-#82000-06-28

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 26.131

TEI4

(Small) Technical Enhancements and Improvements for Rel-4

Rel-4parsed

WI 1628

Definition for Terminal Acoustic Characteristics

Historical association · verification pending

Rel-5historical link

TEI5

(Small) Technical Enhancements and Improvements for Rel-5

Rel-5parsed

TLM5

Rel-5 Terminal interfaces

Historical association · verification pending

Rel-5historical link

Rel-6 Charging Management

Historical association · verification pending

Rel-6historical link

TEI6

(Small) Technical Enhancements and Improvements for Rel-6

Rel-6parsed

TEI7

(Small) Technical Enhancements and Improvements for Rel-7

Rel-7parsed

RETEM_WB_T

Requirements and Test methods for Wideband Terminals

Rel-8official

TEI8

(Small) Technical Enhancements and Improvements for Rel-8

Rel-8parsed

DTMR

Distortion Measurement Test Methods and Requirements

Rel-9official

TEI9

(Small) Technical Enhancements and Improvements for Rel-9

Rel-9parsed

EAAT

Enhancements and Addition of Audio Tests to 26.131 and 26.132

Rel-10official

TEI10

(Small) Technical Enhancements and Improvements for Rel-10

Rel-10parsed

Ext_ATS

Extensions of Acoustic Test Specifications in TS 26.131 and TS 26.132

Rel-11official

ART_LTE

Acoustic Requirements and Test methods for IMS-based conversational speech services over LTE

Rel-12parsed

ART_LTE-NBWB

Acoustic Requirements and Test methods for IMS-based conversational speech services over LTE - NarrowBand and WideBand aspects

Rel-12official

ART_LTE-SUPER

Acoustic Requirements and Test methods for IMS-based conversational speech services over LTE - Super wideband and fullband aspects

Rel-12official

ART_LTE-UED

Acoustic Requirements and Test methods for IMS-based conversational speech services over LTE - UE Delay aspects

Rel-12official

TEI12

(Small) Technical Enhancements and Improvements for Rel-12

Rel-12parsed

ATeMPO_SPINE

Acoustic Test methods and Performance Objectives for Speakerphone Performance in Noisy Environments

Rel-13parsed

E_LTE_UED

Enhanced LTE UE Delay test methods and requirements

Rel-13official

DESUDAPS

Development of super-wideband and fullband P.835

Rel-14parsed

EXT_UED

Extension of UE Delay test methods and requirements

Rel-14parsed

RAOT

Receive acoustic output test in the presence of background noise

Rel-15parsed

SPAN

Speech quality in the presence of ambient noise for super-wideband and fullband modes

Rel-15parsed

TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Historical association · verification pending

Rel-16historical link

HInT

Extension for headset interface tests of UE

Rel-17official

TEI17

(Small) Technical Enhancements and Improvements for Rel-17

Rel-17parsed

TEI18

(Small) Technical Enhancements and Improvements for Rel-18

Rel-18parsed

eUET

UE Testing Phase 2

Rel-18parsed

TEI

(Small) Technical Enhancements and Improvements for R99

R99parsed

WI5TAC,3G-AVT,Terminal_Acoustic_Characteristics

3G Audio-Visual Terminal characteristics

Historical association · verification pending

R99historical link

Knowledge graph

Related standards

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