# ISO/IEC 23003-4:2015 — Withdrawn and superseded ISO standards For ISO/IEC 23003-4:2015, item title is Information technology — MPEG audio technologies — Part 4: Dynamic Range Control; status code is 9599; successor is ISO/IEC 23003-4:2020; withdrawn / published date is 2015-11-10, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 23003-4:2015 _(verified: appears in the quote below)_ - **Item title:** Information technology — MPEG audio technologies — Part 4: Dynamic Range Control _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 23003-4:2020 - **Withdrawn / published date:** 2015-11-10 _(verified: appears in the quote below)_ ## What the source says > 66482,IS,,ISO/IEC 23003-4:2015,Information technology — MPEG audio technologies — Part 4: Dynamic Range Control,Technologies de l'information — Technologies audio MPEG — Partie 4: Contrôle de gamme dynamique,2015-11-10,1,['35.040.40'],ISO/IEC JTC 1/SC 29,9599,,[75930],['en'],106,
ISO/IEC 23003-4:2015 specifies technology for loudness and dynamic range control. ISO/IEC 23003-4:2015 is applicable to most MPEG audio technologies. It offers flexible solutions to efficiently support the widespread demand for technologies such as loudness normalization and dynamic range compression for various playback scenarios.
## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).