TS Latest: Rel-19 Services Multi-Gen

TS 26.249 – Immersive Audio Split Rendering (ISAR)

3GPP TS 26.249 is the 3GPP Technical Specification for Immersive Audio Split Rendering (ISAR). It is published in 2 releases (Rel-18 to Rel-19); the latest version is 19.0.0 in Rel-19.

Algorithmic description of split rendering for immersive audio, enabling rendering across devices with different capabilities.

Read TS 26.249 →

Document type

Technical Specification

Latest release

Rel-19

Latest version

19.0.0

Series

26 series

Releases and versions of TS 26.249

Release	Latest version	Links
Rel-19	19.0.0	Read · Download (3GPP)
Rel-18	18.0.0	Read · Download (3GPP)

Scope of TS 26.249

Category: Services (Immersive Audio). Technology generation: Multi-Gen. Network layer: Services.

Who should read this specification?

Device manufacturers
Network operators
Researchers and academics

Implementation notes

Complexity level: Advanced. Implementation difficulty: High.

Key technologies

IVASXR

Specifications referenced by TS 26.249

TR 21.905 3GPP Terminology and Definitions
TR 26.865 Requirements
TS 26.250 IVAS Codec: General Overview
TS 26.253 IVAS Codec Algorithmic Description
TS 26.258 IVAS Codec Floating-Point C Code
TS 26.252 Digital Test Sequences for IVAS Codec and Related Functions

Specifications that reference TS 26.249

TS 26.253 IVAS Codec Algorithmic Description
TS 26.254 IVAS Codec Rendering Specification
TS 26.255 IVAS Frame Loss Concealment Procedure
TR 26.996 Immersive Audio for Split Rendering Performance

Other specifications in the 26 series

TS 26.244 3GPP File Format (3GP) Specification
TS 26.245 3GPP Timed Text Format Specification
TS 26.246 3GPP SMIL Language Profile Specification
TS 26.247 Transparent End-to-End Packet-switched Streaming
TS 26.250 IVAS Codec: General Overview
TS 26.251 IVAS Fixed-Point C Code Specification
TS 26.252 Digital Test Sequences for IVAS Codec and Related Functions
TS 26.253 IVAS Codec Algorithmic Description

Related glossary terms

IVAS ISAR UE Clause CLDFB LCLD HW Parameter LP INFO CODEC NULL

Frequently asked questions

What is 3GPP TS 26.249?

3GPP TS 26.249 is the 3GPP Technical Specification for Immersive Audio Split Rendering (ISAR). Algorithmic description of split rendering for immersive audio, enabling rendering across devices with different capabilities.

Which 3GPP releases include TS 26.249?

TS 26.249 is published in 2 releases, from Rel-18 to Rel-19. The latest version on 3GPP Explorer is 19.0.0 (Rel-19).

What category does TS 26.249 belong to?

TS 26.249 belongs to the Services (Immersive Audio) category of 3GPP specifications. It applies to Multi-Gen networks.

View the full specification with interactive table of contents, version history, and AI analysis.

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