Specification
3GPP TS 26.259: Subjective test methodologies for the evaluation of immersive audio systems
At a glance
- Title
- Subjective test methodologies for the evaluation of immersive audio systems
- Newest version
- V19.0.0 (Rel-19)
- Versions indexed
- 5
- Newest per release
- Rel-15: V15.0.0 (2018-09-21); Rel-16: V16.0.0 (2020-07-21); Rel-17: V17.0.0 (2022-04-07); Rel-18: V18.0.0 (2024-05-02); Rel-19: V19.0.0 (2025-10-22)
In plain words
TS 26.259 specifies "subjective test methodologies for 3GPP immersive audio systems including channel-based, object-based, scene-based and hybrids of these formats." Its subjective evaluation methods apply to audio capture, coding, transmission and rendering, as indicated in their corresponding clauses.
Source: 3GPP TS 26.259 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/26_series/26.259/26259-j00.zip
Newest version in each release
| Release | Newest version | In the archive | TSG meeting |
|---|---|---|---|
| Rel-19 | V19.0.0 | 2025-10-22 | TSG SA #109 |
| Rel-18 | V18.0.0 | 2024-05-02 | TSG SA #103 |
| Rel-17 | V17.0.0 | 2022-04-07 | not recorded |
| Rel-16 | V16.0.0 | 2020-07-21 | not recorded |
| Rel-15 | V15.0.0 | 2018-09-21 | not recorded |
Source: 3GPP specification archive, versions indexed by 3GPP Scout. Each version links its official file.
Meetings behind the latest versions
Plenary meetings:
- TSG SA #109 is recorded for V19.0.0 (Rel-19)
- TSG SA #103 is recorded for V18.0.0 (Rel-18)
Source: 3GPP CR database and specification archive, as indexed by 3GPP Scout.
Sources
- 3GPP TS 26.259 V19.0.0, clause 1. © 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TSDSI, TTA, TTC). Official text: https://www.3gpp.org/ftp/Specs/archive/26_series/26.259/26259-j00.zip
How this page was made
The facts box and the tables come straight from the 3GPP specification archive and CR database as indexed by 3GPP Scout. An AI model (GPT-6 Luna) wrote the paragraph and named the source of each sentence. Code checked every quote word for word against the stored source text and every number against the cited source. A second AI model from another company (Claude Opus 5.5) reviewed the paragraph against the same sources. The 3GPP documents themselves govern.