TR 26.997 – Codec for Immersive Voice and Audio Services (IVAS)
3GPP TR 26.997 is the 3GPP Technical Report for Codec for Immersive Voice and Audio Services (IVAS). It is published in 2 releases (Rel-18 to Rel-19); the latest version is 19.1.0 in Rel-19.
Specifies the IVAS codec for immersive voice and audio services, covering codec selection, subjective quality testing, implementation complexity, and objective test results to support conversational and non-conversational use cases.
Releases and versions of TR 26.997
| Release | Latest version | Links |
|---|---|---|
| Rel-19 | 19.1.0 | Read · Download (3GPP) |
| Rel-18 | 18.1.0 | Read · Download (3GPP) |
Scope of TR 26.997
Category: Services (Audio Codec). Technology generation: 5G. Network layer: Services.
Who should read this specification?
- Device manufacturers
- Network operators
- Researchers and academics
Key use cases
- Conversational Voice
- Multi-stream Teleconferencing
- VR/XR Streaming
Implementation notes
Complexity level: Advanced. Implementation difficulty: High.
Key technologies
Specifications referenced by TR 26.997
- TR 26.952 EVS Codec Selection, Verification & Characterization
- TS 26.445 EVS Codec Specification
- TR 21.905 3GPP Terminology and Definitions
- TR 26.996 Immersive Audio for Split Rendering Performance
- TS 26.250 IVAS Codec: General Overview
- TS 26.252 Digital Test Sequences for IVAS Codec and Related Functions
- TS 26.253 IVAS Codec Algorithmic Description
- TS 26.255 IVAS Frame Loss Concealment Procedure
- TS 26.256 IVAS Jitter Buffer Management Specification
- TS 26.258 IVAS Codec Floating-Point C Code
Specifications that reference TR 26.997
Other specifications in the 26 series
Related glossary terms
Related topics
Related technologies
Frequently asked questions
What is 3GPP TR 26.997?
3GPP TR 26.997 is the 3GPP Technical Report for Codec for Immersive Voice and Audio Services (IVAS). Specifies the IVAS codec for immersive voice and audio services, covering codec selection, subjective quality testing, implementation complexity, and objective test results to support conversational and non-conversational use cases.
Which 3GPP releases include TR 26.997?
TR 26.997 is published in 2 releases, from Rel-18 to Rel-19. The latest version on 3GPP Explorer is 19.1.0 (Rel-19).
What category does TR 26.997 belong to?
TR 26.997 belongs to the Services (Audio Codec) category of 3GPP specifications. It applies to 5G networks.
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