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Dynamic Resolution Adaptation

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Title: Dynamic Resolution Adaptation  
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Subject: MPEG-4 SL, RTVideo, AAC-LD, High Efficiency Video Coding tiers and levels, Unified Speech and Audio Coding
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Dynamic Resolution Adaptation

Dynamic Resolution Adaptation (DRA) is an audio encoding specification developed by DigiRise Technology. It has been selected as the Chinese national audio coding standard [1] and also suitable for China Multimedia Mobile Broadcasting and DVB-H as extensively addressed in the International Journal of Digital Multimedia Broadcasting.

It is one of the standard formats for Blu-ray Disc audio, introduced with Blu-ray Disc 2.3.[2] There are no discs as yet released with DRA audio, though there are expected to be such discs for the Chinese market.


  1. ^ China selects DRA as national audio coding standard (Interfax, 07:33 GMT, Apr 20, 2009)
  2. ^ Blu-ray Development Set to Increase in China (BluRay Freak, 27 March 2009)

External links

  • Yu-Li You and Wenhua Ma, "DRA Audio Coding Standard: An Overview". Fa-Long Luo (ed.), Mobile Multimedia Broadcasting Standards, Springer US, 2009. ISBN 978-0-387-78262-1 (Print), ISBN 978-0-387-78263-8 (Online).

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