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

The format was 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.cite-ref-2[2] There were no discs released with DRA audio, though there were expected to be such discs for the Chinese market but did not happen.

• References

• External links

cite-note-11. ↑ China selects DRA as national audio coding standard Archived 2009-04-24 at the Wayback Machine (Interfax, 07:33 GMT, Apr 20, 2009)

cite-note-22. ↑ citerefboxall2009Boxall, 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.

• 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).