Volume 23 Issue 3
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MA Wenhua, XU Jing, MA Yuanzhe, YOU Yuli. DRA Audio Coding Standard[J]. Chinese Journal of Electronics, 2014, 23(3): 521-526.
Citation: MA Wenhua, XU Jing, MA Yuanzhe, YOU Yuli. DRA Audio Coding Standard[J]. Chinese Journal of Electronics, 2014, 23(3): 521-526.
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DRA Audio Coding Standard

  • 1.

    Department of Computers, Cisco School of Informatics, Guangdong University of Foreign Studies, Guangzhou 510630, China;

  • 2.

    Department of Science and Technology, Guangdong Rising Assets Management Co., Guangzhou 510600, China;

  • 3.

    Department of Biomedical Science and Technology, South China University of Technology, Guangzhou 510006, China;

  • 4.

    Guangdong Provincial Key Laboratary for Digital Audio Technology, Guangzhou 510640, China

Funds: This work is supported by the 2012 Guangdong Science and Technology Plan for Commercialization of Advanced and New Technologies (No.2012B010100033), Collaboration of Guangdong and Hong Kong for Major Break-Through in Key Technical Fields (No.2005A-10208005) and by Fund for Guangdong Provincial Key Labs (No.2005B-60149).
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  • Received Date: February 28, 2013
  • Revised Date: April 30, 2013
  • Published Date: July 04, 2014
    Graphical Abstract
    • Abstract
  • DRA (Dynamic resolution adaptation) audio coding standard was shown to deploy transientlocalized MDCT to effectively suppress pre-echo artifacts and statistic allocation of codebooks to improve the compression efficiency of Huffman coding. Its quantizers and Huffman codebooks are designed in such a way that a signal path of 24 bits is provided throughout the codec so that high audio quality can be delivered if bit rate suffices. Although simple, it delivers state-of-the-arts compression efficiency as shown by five rounds of ITU-R BS.11116 compliant subjective listening tests.
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    • References (19)
  • ISO/IEC 11172-3:1993 Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to About 1, 5 Mbit/s-Part 3: Audio.
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