Dynamic Resolution Adaptation

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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 declared suitable for China Multimedia Mobile Broadcasting and DVB-H as addressed in the International Journal of Digital Multimedia Broadcasting.

The format is recognised by the CTA EDID Timing Extension Block standard (used by many A/V interfaces) and the Blu-ray Disc specification, introduced with Blu-ray Disc 2.3.[2] There are no discs as yet released with DRA audio,[needs update] though there are expected to be such discs for the Chinese market.


  1. ^ China selects DRA as national audio coding standard Archived 2009-04-24 at the Wayback Machine (Interfax, 07:33 GMT, Apr 20, 2009)
  2. ^ Boxall, Andy (27 March 2009). "Blu-ray Development Set to Increase in China". Blurayfreak. Archived from the original on April 4, 2009. Retrieved May 31, 2017.

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