Release ledger
Canonical Atlas record
TS 26.204
Speech codec speech processing functions; Adaptive Multi-Rate - Wideband (AMR-WB) speech codec; ANSI-C code
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.
Rel-7 snapshot
Work affecting this release
4 indexed Change Requests · 1 connected Work Item.
Showing 4 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0015 rev.1 — Robust operation of AMRWB-decoder
CR 0011 — Maintaining bit-exactness with TS 26.173 after Correction in AMR decoder to avoid division by zero in RX-DTX Handling
CR 0012 — Bug fix to SID frame signaling in decoder
CR 0015 — Robust operation of AMRWB-decoder
Version history
Indexed versions
Showing 27 of 27 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 26.204
Wideband Telephony Service - AMR
Floating-point ANSI-C code for the AMR-WB speech codec
(Small) Technical Enhancements and Improvements for Rel-7
(Small) Technical Enhancements and Improvements for Rel-16
Historical association · verification pending(Small) Technical Enhancements and Improvements for Rel-17
Knowledge graph
Related standards
No graph edges indexed yet. The graph API is available at this JSON endpoint.