Standards in data
In addition to the audio quality improvements of HD Radio, the technology will allow broadcasters to provide digital information services. The first generation of data services is already a part of the HD Radio system. The plans have been laid to add additional services and capabilities in the future.
An informal standard for data services is defined by ID3 (www.id3.org), which grew from the popularity of MP3 files and the desire to include information about the audio within the file. ID3 provides fields that include artist name, song title and album title. More recent additions to the format include other user-defined fields such as a URL, lyrics, equalizer presets, pictures and even other files. ID3 is currently in version ID3v2.4.0. The figure here shows the coding format of the ID3 data string.
The ID3 format lists 80 entries in the Genre field. Nullsoft/Winamp has added an additional 46 types to the list.
Plans are also in place to include a variation of the Synchronized Multimedia Integration Language (SMIL) to deliver dynamic multimedia services via IBOC. This will provide the means to transmit enhanced information services such as breaking news, sports, weather and traffic alerts as text or audio files, listener-controlled audio services that allow listeners to pause, store, fast-forward, index and replay audio with the help of an integrated program guide, and supplementary data delivery to deliver telematics, navigation information and rear-seat entertainment.
When Advanced Application Services are implemented, they will draw on the HD Broadcast Multimedia Language (HD BML), which is a defined XML structure that is based on the SMIL profile.
Acceptable Use Policy blog comments powered by Disqus
[an error occurred while processing this directive]
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
A cutting-edge radio and TV broadcast media center brings hope and entertainment to a sixth pediatric hospital.
Browse Back Issues[an error occurred while processing this directive]
Also in the December Issue
- IP Audio Begins Interoperability Journey
- New Tower Construction Update Mainly for the Birds
- The FCC has been busy since the government shutdown in October 2013.
- Applied Technology: HD Voice
- Field Report: iZotope RX3 Advanced
- Side by Side: Portable Recorders
- New Life for Legacy Equipment
- Do You Remember? Gifts of Holidays Past