Digital Audio Broadcasting

DAB is the acronym for Digital Audio Broadcasting.

A digital radio broadcasting technology that was developed to provide improved audio quality and more efficient use of radio spectrum compared to traditional analog radio broadcasting systems, such as AM and FM.

DAB uses digital signal processing and compression techniques to transmit audio and data more efficiently than analog systems. The audio is encoded using the MPEG-1 Audio Layer II (MP2) codec, which provides near-CD quality sound while using less bandwidth than traditional analog broadcasts.

Some advantages of DAB over traditional analog radio broadcasting include:

  1. Improved audio quality: DAB provides better audio quality with less noise and interference compared to analog radio systems.
  2. More stations: DAB allows for a higher number of radio stations to be broadcast within the same frequency band, providing listeners with a greater variety of content.
  3. Data services: DAB enables the transmission of additional data services alongside audio content, such as station information, traffic updates, and song information.
  4. Better reception: DAB offers more robust signal reception in challenging environments, such as urban areas with tall buildings or hilly terrain.

DAB has been adopted in many countries around the world as a replacement for, or in addition to, traditional analog radio broadcasting systems. DAB+ is an enhanced version of DAB that uses a more advanced audio codec called HE-AAC, providing even better audio quality and more efficient use of bandwidth.

  • Abbreviation: DAB

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