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3GPP 26-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  Q3-2024  Plenary Meetings.  The new ones are displayed with a single red dotted overline.
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click  here to see the new 26-series documents introduced at each 3GPP quarterly Plenary Meeting

26.0…   26.1…   26.2…   26.3…   26.4…   26.5…   26.8…   26.9…
the left border in green means that the full text and graphic content are available online for this TS/TR
Adaptive Multi-Rate (AMR) Speech Codec
TS 26.071 REL  3 → 18 General Description
TS 26.073 REL  3 → 18 ANSI-C Code
TS 26.074 REL  3 → 18 Test Sequences
TS 26.077 REL  4 → 18 Minimum Performance Requirements for Noise Suppresser
TS 26.090 REL  3 → 18 Transcoding Functions
TS 26.091 REL  3 → 18 Error Concealment of Lost Frames
TS 26.092 REL  3 → 18 Comfort Noise Aspects
TS 26.093 REL  3 → 18 Source Controlled Rate Operation
TS 26.094 REL  3 → 18 Voice Activity Detector (VAD)

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TS 26.101 REL  3 → 18 AMR Speech Codec – Frame structure
TS 26.102 REL  3 → 18 AMR Speech Codec – Interface to Iu, Uu and Nb
TS 26.103 REL  3 → 18 Speech Codec List for GSM and UMTS
TS 26.104 REL  3 → 18 ANSI-C Code for the floating-point AMR Speech Codec
TS 26.110 REL  3 → 18 Codec for Circuit Switched Multimedia Telephony Service – General Description
TS 26.111 REL  3 → 18 Codec for Circuit Switched Multimedia Telephony Service – Modifications to H.324
TS 26.113 REL  18 Real-Time Media Communication – Protocols and APIs
TS 26.114 REL  7 → 18 IMS Multimedia Telephony – Media Handling and Interaction
TS 26.115 REL  4 → 18 Echo Control for Speech and Multimedia Services
TS 26.116 REL  13 → 18 Television (TV) over 3GPP Services – Video Profiles
TS 26.117 REL  16 → 18 5G Media Streaming (5GMS) – Speech and Audio Profiles
TS 26.118 REL  15 → 18 3GPP Virtual Reality Profiles for Streaming Applications
TS 26.119 REL  18 Media Capabilities for Augmented Reality
TS 26.130 REL  18 Speech/Audio Codec RTP Payload Format Conformance for UE Testing
TS 26.131 REL  3 → 18 Terminal Acoustic Characteristics for Telephony – Requirements
TS 26.132 REL  3 → 18 Speech and Video Telephony Terminal Acoustic Test Specification
TS 26.139 REL  16 → 18 RTP/RTCP verification procedures
TS 26.140 REL  5 → 18 MMS Media Formats and Codecs
TS 26.141 REL  6 → 18 IMS Messaging and Presence – Media Formats and Codecs
TS 26.142 REL  7 → 18 Dynamic and Interactive Multimedia Scenes (DIMS)
TS 26.143 REL  18 Messaging Media profiles
TS 26.150 REL  9 → 18 Syndicated Feed Reception (SFR) within 3GPP Environments – Protocols and Codecs
Adaptive Multi-Rate - Wideband (AMR-WB) Speech Codec
TS 26.171 REL  5 → 18 General Description
TS 26.173 REL  5 → 18 C-Source Code
TS 26.174 REL  5 → 18 Test Sequences
 
TS 26.177 REL  6 → 18 DSR Extended Advanced Front-End – Test Sequences
TS 26.179 REL  13 → 18 Mission Critical Push To Talk (MCPTT) – Codecs and Media Handling
Adaptive Multi-Rate - Wideband (AMR-WB) Speech Codec
TS 26.190 REL  5 → 18 Transcoding Functions
TS 26.191 REL  5 → 18 Error Concealment of Erroneous or Lost Frames
TS 26.192 REL  5 → 18 Comfort Noise Aspects
TS 26.193 REL  5 → 18 Source Controlled Rate Operation
TS 26.194 REL  5 → 18 Voice Activity Detector (VAD)

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Adaptive Multi-Rate - Wideband (AMR-WB) Speech Codec
TS 26.201 REL  5 → 18 Frame Structure
TS 26.202 REL  5 → 18 Interface to Iu, Uu and Nb
TS 26.204 REL  5 → 18 Floating-point C-source code
TS 26.223 REL  13 → 18 Telepresence using IMS – Media Handling and Interaction
Cellular Text Telephone Modem
TS 26.226 REL  5 → 18 General description
TS 26.230 REL  5 → 18 Transmitter bit exact C-code
TS 26.231 REL  5 → 18 Minimum Performance Requirements
TS 26.233 REL  4 → 15 PSS – General description
TS 26.234 REL  4 → 18 PSS – Protocols and codecs
TS 26.235 REL  5 → 12 PS conversational multimedia applications – Default codecs
TS 26.236 REL  5 → 12 PS conversational multimedia applications – Transport protocols
TS 26.237 REL  8 → 18 IMS-based PSS and MBMS user service – Protocols
TS 26.238 REL  15 → 18 Uplink streaming framework
TS 26.243 REL  6 → 18 DSR extended advanced front-end – Fixed-point ANSI-C code
TS 26.244 REL  6 → 18 PSS – 3GP file format
TS 26.245 REL  6 → 18 PSS – Timed text format
TS 26.246 REL  6 → 18 PSS – 3GPP SMIL language profile
TS 26.247 REL  10 → 18 PSS – Progressive Download and Dynamic Adaptive Streaming over HTTP
TS 26.249 REL  18 Immersive Audio for Split Rendering Scenarios
Detailed Algorithmic Description of Split Rendering Functions
Codec for Immersive Voice and Audio Services (IVAS)
TS 26.250 REL  18 General overview
TS 26.252 REL  18 Test sequences
TS 26.253 REL  18 Detailed Algorithmic Description incl. RTP payload format and SDP parameter definitions
TS 26.254 REL  18 Rendering
TS 26.255 REL  18 Error concealment of lost packets
TS 26.256 REL  18 Jitter Buffer Management
TS 26.258 REL  18 C code (floating-point)
TS 26.259 REL  15 → 18 Subjective Test Methodologies for the evaluation of Immersive Audio Systems
TS 26.260 REL  15 → 18 Objective Test Methodologies for the evaluation of Immersive Audio Systems
TS 26.261 REL  18 Terminal Audio Quality Performance requirements for Immersive Audio Services
TS 26.264 REL  18 IMS-based AR Real-Time Communication
eCall Data Transfer - In-Band Modem Solution
TS 26.267 REL  8 → 18 General Description
TS 26.268 REL  8 → 18 ANSI-C Reference Code
TS 26.269 REL  8 → 18 Conformance Testing
Extended Adaptive Multi-Rate - Wideband (AMR-WB+) Speech Codec
TS 26.273 REL  6 → 18 Fixed-Point ANSI-C Code
TS 26.274 REL  6 → 18 Conformance Testing
TS 26.281 REL  14 → 18 Mission Critical Video (MCVideo) – Codecs and Media Handling
TS 26.290 REL  6 → 18 AMR-WB+ Speech Codec – Transcoding Functions

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TS 26.304 REL  6 → 18 AMR-WB+ Speech Codec – Floating-Point ANSI-C Code
TS 26.307 REL  13 → 18 Presentation Layer for 3GPP Services
TS 26.346 REL  6 → 18 MBMS protocols and codecs
TS 26.347 REL  14 → 18 MBMS – Application Programming Interface and URL
TS 26.348 REL  16 → 18 Northbound API for MBMS at the xMB reference point

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Enhanced aacPlus General Audio Codec
TS 26.401 REL  6 → 18 General Description
TS 26.402 REL  6 → 18 Additional Decoder Tools
TS 26.403 REL  6 → 18 Encoder specification – AAC part
TS 26.404 REL  6 → 18 Encoder specification – SBR part
TS 26.405 REL  6 → 18 Encoder specification – Parametric stereo part
TS 26.406 REL  6 → 18 Conformance testing
TS 26.410 REL  6 → 18 Floating-point ANSI-C code
TS 26.411 REL  6 → 18 Fixed-point ANSI-C code
 
TS 26.412 REL  6 → 18 Source Code for 3GP File Format
TS 26.430 REL  9 → 18 Timed Graphics
Codec for Enhanced Voice Services (EVS)
TS 26.441 REL  12 → 18 General Overview
TS 26.442 REL  12 → 18 ANSI C Code (Fixed-Point)
TS 26.443 REL  12 → 18 ANSI C Code (Floating-Point)
TS 26.444 REL  12 → 18 Test Sequences
TS 26.445 REL  12 → 18 Detailed Algorithmic Description
TS 26.446 REL  12 → 18 AMR-WB Backward Compatible Functions
TS 26.447 REL  12 → 18 Error Concealment of Lost Packets
TS 26.448 REL  12 → 18 Jitter Buffer Management
TS 26.449 REL  12 → 18 Comfort Noise Generation (CNG) Aspects
TS 26.450 REL  12 → 18 Discontinuous Transmission (DTX)
TS 26.451 REL  12 → 18 Voice Activity Detection (VAD)
TS 26.452 REL  16 → 18 ANSI C Code – Alternative Fixed-Point using Updated Basic Operators
TS 26.453 REL  13 → 18 Speech Codec Frame Structure
TS 26.454 REL  13 → 18 Interface to Iu, Uu, Nb and Mb

Up
TS 26.501 REL  16 → 18 5G Media Streaming (5GMS) – General Description and Architecture
TS 26.502 REL  17 → 18 5G Multicast-Broadcast User Service Architecture
TS 26.506 REL  18 5G Real-Time Media Communication Architecture – Stage 2
TS 26.510 REL  18 Media Delivery Interactions and APIs for Provisioning and Media Session Handling
TS 26.511 REL  16 → 18 5G Media Streaming (5GMS) – Profiles, Codecs and Formats
TS 26.512 REL  16 → 18 5G Media Streaming (5GMS) – Protocols
TS 26.517 REL  17 → 18 5G Multicast-Broadcast User Services – Protocols and Formats
TS 26.522 REL  18 5G Real-time Media Transport Protocol Configurations
TS 26.531 REL  17 → 18 Data Collection and Reporting – General Description and Architecture
TS 26.532 REL  17 → 18 Data Collection and Reporting – Protocols and Formats
TS 26.565 REL  18 Split Rendering Media Service Enabler

Up
TR 26.801 REL  16 → 18 UE Supporting Handset Mode with Non-Traditional Earpieces
TR 26.802 REL  17 Multicast Architecture Enhancement for 5G Media Streaming
TR 26.803 REL  17 Study on 5G Media Streaming Extensions for Edge Processing
TR 26.804 REL  17 → 18 Study on 5G Media Streaming extensions
TR 26.805 REL  17 Study on Media Production over 5G NPN Systems
TR 26.806 REL  18 Study on Tethering AR Glasses – Architectures, QoS and Media Aspects
TR 26.812 REL  18 QoE metrics for AR/MR services
TR 26.818 REL  15 Virtual Reality (VR) Streaming Audio – Characterization Test Results
TR 26.827 REL  12 IMS-based Streaming and Download Delivery enhancements
TR 26.843 REL  16 Study on Non Bit-Exact Conformance Criteria and Tools for Floating-Point EVS Codec
TR 26.848 REL  12 Enhanced MBMS Operation
TR 26.849 REL  12 MBMS Operation On Demand
TR 26.850 REL  16 MBMS for IoT
TR 26.851 REL  11 Enhancements to Multimedia (EMM) – EMM, DDE and IPME Aspects
TR 26.852 REL  13 → 14 MBMS – Extensions and Profiling
TR 26.855 REL  19 Study on Film Grain Synthesis
TR 26.857 REL  18 5G Media Service Enablers
TR 26.861 REL  15 Investigations on Test Methodologies for Immersive Audio Systems
TR 26.862 REL  17 Immersive Teleconferencing and Telepresence for Remote Terminals (ITT4RT)
Use Cases, Requirements and Potential Solutions
TR 26.865 REL  18 Immersive Audio for Split Rendering Scenarios; Requirements
TR 26.880 REL  14 Study on MBMS Usage and Codecs for MC Video Service
TR 26.881 REL  15 Forward Error Correction (FEC) for Mission Critical Services
TR 26.891 REL  16 5G Enhanced Mobile Broadband – Media Distribution

Up
TR 26.901 REL  4 AMR-WB Speech Codec – Feasibility Study Report
TR 26.902 REL  7 → 18 Video Codec Performance
TR 26.903 REL  9 → 18 Improved Video support for PSS and MBMS Services
TR 26.904 REL  10 → 18 Improved Video Coding support
TR 26.905 REL  11 → 18 Mobile Stereoscopic 3D Video
TR 26.906 REL  12 → 18 Evaluation of High Efficiency Video Coding (HEVC) for 3GPP Services
TR 26.907 REL  12 → 18 HTML5 for a New Presentation Layer in 3GPP Services
TR 26.909 REL  14 → 18 Study on improved Streaming Quality of Experience (QoE) Reporting in 3GPP Services and Networks
TR 26.910 REL  16 → 18 Study on Media Handling aspects of RAN Delay Budget Reporting in MTSI
TR 26.911 REL  3 → 18 Codecs for CS Multimedia Telephony Service – Terminal Implementor's Guide
TR 26.912 REL  3 → 4 Codec for Circuit switched Multimedia Telephony Service
Quantitative Performance Evaluation of H.324 Annex C over 3G
TR 26.914 REL  7 → 18 Multimedia Telephony over IMS – Optimization Opportunities
TR 26.915 REL  3 Echo Control for Speech and Multi-Media Services
TR 26.916 REL  14 Media Handling and Quality aspects of SRVCC
TR 26.917 REL  15 → 18 MBMS/PSS enhancements to Support Television Services
TR 26.918 REL  15 → 18 Virtual Reality (VR) Media Services over 3GPP
TR 26.919 REL  16 → 18 Study on Media Handling aspects of Conversational Services in 5G Systems
TR 26.921 REL  16 → 18 Investigations on ambient noise reproduction systems for acoustic testing of terminals
TR 26.922 REL  13 → 18 Video Telephony Robustness improvements extensions – Performance Evaluation
TR 26.923 REL  13 → 18 Study on Media Handling aspects of IMS-based Telepresence
TR 26.924 REL  13 → 18 Study on improved End-to-End QoS Handling for MTSI
TR 26.925 REL  16 → 18 Typical traffic characteristics of media services on 3GPP networks
TR 26.926 REL  18 Traffic Models and Quality Evaluation Methods for Media and XR Services in 5G Systems
TR 26.928 REL  16 → 18 Extended Reality (XR) in 5G
TR 26.929 REL  16 → 18 QoE Parameters and Metrics relevant to the Virtual Reality (VR) User Experience
TR 26.930 REL  18 Study on the enhancement for Immersive Real-Time communication for WebRTC
TR 26.931 REL  15 → 18 Evaluation of Additional Acoustic Tests for Speech Telephony
TR 26.935 REL  6 → 18 PS Conversational Multimedia Applications – Performance Characterisation of Default Codecs
TR 26.936 REL  6 → 18 Performance Characterization of 3GPP Audio Codecs
TR 26.937 REL  5 → 18 PSS – RTP usage model
TR 26.938 REL  12 → 18 PSS – improved support for Dynamic Adaptive Streaming over HTTP in 3GPP
TR 26.939 REL  15 → 18 Guidelines on the Framework for Live Uplink Streaming
TR 26.941 REL  18 → 19 Network Slicing Extensions for 5G media services
TR 26.943 REL  6 → 18 Recognition Performance Evaluations of Codecs for Speech Enabled Services (SES)
TR 26.944 REL  7 → 18 End-to-End Multimedia Services Performance Metrics
TR 26.946 REL  6 → 18 MBMS User Service Guidelines
TR 26.947 REL  11 → 18 MBMS – Selection and Characterisation of Application Layer Forward Error Correction (FEC)
TR 26.948 REL  13 → 18 Study on Video enhancements in 3GPP Multimedia Services
TR 26.949 REL  13 → 18 Video Formats for 3GPP Services
TR 26.950 REL  10 → 18 Study on Surround Sound Codec extension for PSS and MBMS
TR 26.952 REL  12 → 18 EVS Codec Performance Characterization
TR 26.953 REL  14 → 18 Interactivity support for 3GPP-based Streaming and Download Services
TR 26.954 REL  14 → 18 Test Plan for Speech Quality and Delay through a Headset Electrical Interface
TR 26.955 REL  17 → 18 Video Codec characteristics for 5G-based services and applications
TR 26.957 REL  14 → 18 Study on Server And Network-assisted Dynamic Adaptive Streaming over HTTP (DASH) (SAND) for 3GPP Multimedia Services
TR 26.959 REL  15 → 18 Study on enhanced Voice over LTE (VoLTE) Performance
TR 26.962 REL  17 → 18 Immersive Teleconferencing and Telepresence for Remote Terminals (ITT4RT)
Operation and Usage Guidelines
TR 26.966 REL  18 Evaluation of new HEVC coding tools
TR 26.967 REL  8 → 18 eCall Data Transfer – In-band Modem Solution
TR 26.969 REL  8 → 18 eCall Data Transfer – In-band Modem Solution – Characterization Report
TR 26.973 REL  15 → 18 Update to Fixed-Point Basic Operators
TR 26.975 REL  3 → 18 AMR Speech Codec – Performance Characterization
TR 26.976 REL  5 → 18 AMR-WB Speech Codec – Performance Characterization
TR 26.978 REL  4 → 18 Results of the AMR Noise Suppression Selection Phase
TR 26.980 REL  13 → 18 MTSI – Media Handling aspects of Multi-Stream Multiparty Conferencing for Multimedia Telephony Service for IMS
TR 26.981 REL  14 → 18 MBMS extensions for Provisioning and Content Ingestion
TR 26.982 REL  18 Implementation guidelines for Multiparty RTT
TR 26.985 REL  16 → 18 V2X Media Handling and Interaction
TR 26.989 REL  13 → 18 MCPTT – Media, Codecs and MBMS enhancements for MCPTT over LTE
TR 26.996 REL  18 Immersive Audio for Split Rendering Scenarios Performance characterization
TR 26.997 REL  18 Codec for Immersive Voice and Audio Services (IVAS) Performance characterization
TR 26.998 REL  17 → 18 Support of 5G glass-type Augmented Reality / Mixed Reality (AR/MR) devices
TR 26.999 REL  17 → 18 Virtual Reality (VR) streaming interoperability and characterization

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