Introduction to DAB, DAB+

 

Pure Evoke Mio by Orla KielyThe DAB family of standards includes DAB and DAB+ for digital radio and DMB for mobile TV. They are flexible, global  and open standards and are a means for transmission of terrestrial digital radio signals. 

When the original DAB (Digital Audio Broadcasting) was first developed in the late 1980s, it was based on MPEG Audio Layer II coding, which is still commonly used in broadcasting today.

Since then, MPEG Audio Layer III, better known as MP3 has conquered the market of digital music players. Even though still the most successful technology on the market, MP3 has been overtaken in efficiency and performance by MPEG-4 (AAC). This integration of AAC into DAB allowed higher efficiency, meaning the same audio quality at lower bitrates - hence the birth of DAB+.

Another important innovation was the addition of video/multimedia capabilities to Digital Audio Broadcasting, allowing DAB to become a digital mobile television platform DMB (Digital Multimedia Broadcasting) as well as a multimedia digital radio platform.

Both for DMB and DAB+ the technical basis remains DAB. In other words, the physical layer is still the same, just new applications, new transport protocols and a second error control coding layer was added. All three technologies can therefore be used alongside each other on one multiplex and basically use the same infrastructure, so there is a whole range of possible multiplex scenarios.

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Economic Advantages of DAB+

The cost of delivering a station in Bavaria on DAB+ compared to FM.

Digital Radio Receivers

Find out about the hundreds of DAB/ DAB+ devices on the market with prices starting as low as 20 Euro (25 USD) consumers have plenty of choice when choosing what receiver to listen to their favourite digital radio stations on, whether at home, on the move or in-car.

Country Information

Find out where the DAB/DAB+ is on air and detailed information on market status, services on air, network coverage and maps, regulation, national marketing initiatives, digital radio in-car, receiver penetration and emergency broadcasting scenarios.

Join WorldDAB

Join WorldDAB, the global industry forum for digital radio professionals, facilitating the implementation of broadcast radio based on DAB, DAB+.