ISO/IEC 23000-12:2010 PDF

Information technology — Multimedia application format (MPEG-A) — Part 12: Interactive music application format

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Title (English):

ISO/IEC 23000-12:2010

Information technology — Multimedia application format (MPEG-A) — Part 12: Interactive music application format

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 26
Publication date:: July 6, 2010
Edition:: ISO/IEC IS 23000 edition 1 version 1
ICS:: 35.040

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Description (English):

ISO/IEC 23000-12:2010 specifies a file format designed for interactive music services. It integrates the multiple audio tracks with appropriate additional information for enabling users to experience various preset mixes and to make their own mixes complying with interactivity rules imposed by the producer. It specifies a file type brand regarding relevant application area, and a file structure, which is capable of storage with multiple audio tracks with the following: group information on hierarchical structure of audio tracks; preset which is predefined mixing information on multiple audio tracks; rule which introduces specific data related to user's interaction; timed text, image and metadata.

Technical details

Technical committee: ISO/IEC JTC 1/SC 29 - Coding of audio, picture, multimedia and hypermedia information
SKU: ISO/IEC 23000-12:2010

Abstract

Overview

ISO/IEC 23000-12:2010 - part of the MPEG-A family - defines the Interactive Music Application Format (IM AF), a standardized file format for delivering multitrack, interactive music content. The standard specifies how to package multiple audio tracks together with hierarchical grouping, preset mixes, producer-defined interactivity rules, timed text, images and metadata inside an ISO-Based Media File Format (ISO‑BMFF) container. IM AF enables listener-controlled recomposition (user mixes) while ensuring interactions comply with constraints imposed by the content owner.

Key topics and technical requirements

File container: IM AF is built on ISO-BMFF (ISO/IEC 14496‑12) and uses standard boxes such as ftyp, moov, mdat plus IM AF-specific boxes (e.g., grco, prco, ruco).
Multitrack audio support: stores multiple audio tracks (mono/stereo) and supports codecs such as MP3, AAC, SAOC and PCM.
Hierarchical grouping: grup structures group tracks into hierarchies (e.g., all guitars) to simplify selection and mixing.
Preset mixes: prst boxes contain predefined mixing parameters (Preset‑mix mode) for ready-made listening experiences.
User interactivity: User‑mix mode allows selection/unselection of tracks/groups and per-track volume control; interactions are validated against interactivity rules defined in ruco (selection and mixing rules).
Timed multimedia: synchronized 3GPP timed text for lyrics, JPEG images, and MPEG‑7 metadata (MDS) are supported to enrich presentation.
File structures: supports single‑presentation files and multiple‑presentation (album) files; includes guidance for backward compatibility with legacy music players.
Brand identification: defines a file type brand for application discovery and interoperability.
Rule analysis: player behavior must include a rule analyzer to verify user actions conform to producer restrictions.

Practical applications and target users

IM AF is intended for any solution that needs interoperable, interactive music content:

Streaming platforms and interactive music services offering remixable tracks and karaoke features.
Mobile and desktop interactive music players that implement Preset‑mix and User‑mix modes.
Music app developers building user‑mixing, educational, or gamified music experiences.
Content producers and rights holders who want to deliver multitrack releases with controlled interactivity.
Device manufacturers and middleware vendors aiming for standardized playback and content exchange.

Related standards (normative references)

ISO/IEC 14496‑12 - ISO Base Media File Format (ISO‑BMFF)
ISO/IEC 14496‑3 - AAC audio
ISO/IEC 11172‑3 - MP3
ISO/IEC 23003‑2 - SAOC (Spatial Audio Object Coding)
ISO/IEC 10918‑1 - JPEG image coding
ISO/IEC 15938‑5 - MPEG‑7 MDS metadata
3GPP TS 26.245 - 3GPP Timed Text

ISO/IEC 23000‑12 provides a practical, interoperable way to deliver rich, multitrack interactive music content - enabling new service models and consistent playback behavior across platforms.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

File container: IM AF is built on ISO-BMFF (ISO/IEC 14496‑12) and uses standard boxes such as ftyp, moov, mdat plus IM AF-specific boxes (e.g., grco, prco, ruco).
Multitrack audio support: stores multiple audio tracks (mono/stereo) and supports codecs such as MP3, AAC, SAOC and PCM.
Hierarchical grouping: grup structures group tracks into hierarchies (e.g., all guitars) to simplify selection and mixing.
Preset mixes: prst boxes contain predefined mixing parameters (Preset‑mix mode) for ready-made listening experiences.
User interactivity: User‑mix mode allows selection/unselection of tracks/groups and per-track volume control; interactions are validated against interactivity rules defined in ruco (selection and mixing rules).
Timed multimedia: synchronized 3GPP timed text for lyrics, JPEG images, and MPEG‑7 metadata (MDS) are supported to enrich presentation.
File structures: supports single‑presentation files and multiple‑presentation (album) files; includes guidance for backward compatibility with legacy music players.
Brand identification: defines a file type brand for application discovery and interoperability.
Rule analysis: player behavior must include a rule analyzer to verify user actions conform to producer restrictions.

Practical applications and target users

IM AF is intended for any solution that needs interoperable, interactive music content:

Streaming platforms and interactive music services offering remixable tracks and karaoke features.
Mobile and desktop interactive music players that implement Preset‑mix and User‑mix modes.
Music app developers building user‑mixing, educational, or gamified music experiences.
Content producers and rights holders who want to deliver multitrack releases with controlled interactivity.
Device manufacturers and middleware vendors aiming for standardized playback and content exchange.

Related standards (normative references)

ISO/IEC 14496‑12 - ISO Base Media File Format (ISO‑BMFF)
ISO/IEC 14496‑3 - AAC audio
ISO/IEC 11172‑3 - MP3
ISO/IEC 23003‑2 - SAOC (Spatial Audio Object Coding)
ISO/IEC 10918‑1 - JPEG image coding
ISO/IEC 15938‑5 - MPEG‑7 MDS metadata
3GPP TS 26.245 - 3GPP Timed Text

ISO/IEC 23000‑12 provides a practical, interoperable way to deliver rich, multitrack interactive music content - enabling new service models and consistent playback behavior across platforms.

ISO/IEC 23000-12:2010 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications and target users

Related standards (normative references)

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications and target users

Related standards (normative references)

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