Here we provide access to our publicly accessible resources – specifications, references and other materials.
IMDA Automotive Profile 1
The IMDA has released IMDA Automotive Profile 1, Revision 1 on January 10, 2013 as a result of the ongoing work done by its Automotive Working group. This specification provides an in-detail technical description of mandatory and optional features and functionalities an IMDA compliant Internet car radio supports. This is key information for anyone developing an Internet radio product for the car. It provides a strong foundation upon which companies can build their basic, as well as enhanced, radio products with lots of room for differentiation. The IMDA can build on years of experience in working with broadcasters and CE companies that develop Internet radio services and products for many types of consumer devices. With the help of the automotive industry, it extends this expertise to the car market, which faces similar challenges for broadcasters and carmakers that the CE industry dealt with years ago. Auto Profile 1 compliant test streams are available to manufacturers. Please contact us for details.
Benefits of the Auto Profile:
(a) For device development companies it helps to overcome market fragmentation introduced by proprietary systems and ensures basic interoperability of Internet radio services and devices and by that, gives access to a broad content base.
(b) For broadcasters it is essential to reach a broad device base with a guaranteed Quality of Service and listener experience. Also, the device standard simplifies delivery by making selected codecs, transport schemes mandatory. It also recommends the usage of service metadata according to the IMDA SI and RadioDNS specification. By that, it reduces costs and increases the attractiveness of the services to consumers, device makers and advertisers.
Enter your name and email address to download IMDA Automotive Profile 1 Rev 2
The IMDA Broadcaster Guidelines are intended as a recommendation to broadcasters for the streaming of radio programs to cars and other mobile devices. The IMDA Broadcaster Guidelines match the IMDA Device Automotive Profile 1 and therefore, enable a reliable, convincing quality listener experience. The Broadcaster Guidelines are tailored specifically for varying and bandwidth-constrained conditions of a moving vehicle where Internet radio complements traditional forms of analog or digital radio and competes with other forms of media such as local music playback. These guidelines, developed in a joint effort by IMDA members and partners from the broadcast, mobile and automotive worlds, include recommendations on audio codecs and bitrates, transport formats, service metadata and playlists.
The document contains a list of relevant recommendations based on the organization‘s previous work on device profiles and metadata , and is augmented by additional items that the organization deemed to be important for broadcasters. The recommendations are grouped by the following areas:
- Live streams
- On-demand content
This version is intended for a 2 month industry review and should be considered a living document. New developments such as the MPEG-DASH standard for adaptive streaming and industry input will be considered for the next version.
Please provide feedback at http://www.imdalliance.org/contact/.
Enter your name and email address to download IMDA Broadcaster Guidelines
IMDA Service Identification
The Service Identification describes a way for a broadcaster, or media organisation, to expose their data to a hardware or software solution (e.g. aggregator) run by a third party in a standardised way. The data from the media organisation contains details of itself, its brands and its brands’ transport methods. Not only is this technical information but also editorial information allowing the solution to correctly categorise and expose brands to the audience, and to allow a solution to evaluate appropriateness of brands to criteria supplied where the solution includes some search functionality or automated browsing features.
If you are a media organisation (broadcaster) or a solution provider (aggregator), feel free to contact us here.
If you are a broadcaster, intending to gather your SI data, please use the online webform.
Current version: “IMDA Service Identification 2.2”
Previous version: “IMDA Service Identification 2.1.1”
Publishers: see here for a list of Broadcasters publishing their IMDA SI
Change log: here
License: available for use under GNU General Public License Version 3 – open to all.
IMDA Central Discovery Service
Having your metadata organized is really useful. However, being able to publish your Service Identification begs the next question: How do I notify it (or e.g. the update of one certain bit) to the world? As, from a media organisation’s point of view, there are a lot of hardware or software solutions to address.
The Central Discovery Service works alongside the IMDA Service Identification and gives any media organisation the opportunity to notify solution providers about updates in its metadata. The CDS will automatically forward such notifications to all solution providers, referring them to the media organisation itself.
If you are a broadcaster and want to apply for a CDS account, feel free to contact us here.
IMDA general documents
The IMDA is a non-profit organisation and the only forum that brings together all the stakeholders in the Internet Media Ecosystem. Thus the IMDA is the key organization for development and harmonization for the distribution of media over Internet technologies.
Antitrust Guidelines - Internet Media Device Alliance Antitrust Guidelines
Steering Committee Charter - IMDA Steering Committee Charter
Technical Committee Charter - IMDA Technical Committee Charter
IMDA request for information - If you are interested in joining the IMDA, use the IMDA’s online form.