ISO/IEC 23003-4:2025Published

Information technology — MPEG audio technologies — Part 4: Dynamic range control

Technologies de l'information — Technologies audio MPEG — Partie 4: Contrôle de gamme dynamique

Abstract / scope

This document specifies technology for loudness and dynamic range control (DRC). It 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.

Life cycle

Replaces

ISO/IEC 23003-4:2020WithdrawnInformation technology — MPEG audio technologies — Part 4: Dynamic range controlInternational Standard · Published 4 Jun 2020 · ISO/IEC JTC 1/SC 29 ISO/IEC 23003-4:2020/Amd 1:2022WithdrawnInformation technology — MPEG audio technologies — Part 4: Dynamic range control — Amendment 1: Side chain normalizationInternational Standard · Published 5 Jul 2022 · ISO/IEC JTC 1/SC 29 ISO/IEC 23003-4:2020/Amd 2:2023WithdrawnInformation technology — MPEG audio technologies — Part 4: Dynamic range control — Amendment 2: Loudness levelingInternational Standard · Published 16 Oct 2023 · ISO/IEC JTC 1/SC 29