DRA Audio Coding Standard

MA Wenhua; XU Jing; MA Yuanzhe; YOU Yuli

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Article Navigation > Chinese Journal of Electronics > 2014 > 23(3): 521-526

MA Wenhua, XU Jing, MA Yuanzhe, et al., “DRA Audio Coding Standard,” Chinese Journal of Electronics, vol. 23, no. 3, pp. 521-526, 2014,

Citation:

MA Wenhua, XU Jing, MA Yuanzhe, et al., “DRA Audio Coding Standard,” Chinese Journal of Electronics, vol. 23, no. 3, pp. 521-526, 2014,

MA Wenhua, XU Jing, MA Yuanzhe, et al., “DRA Audio Coding Standard,” Chinese Journal of Electronics, vol. 23, no. 3, pp. 521-526, 2014,

Citation:

MA Wenhua, XU Jing, MA Yuanzhe, et al., “DRA Audio Coding Standard,” Chinese Journal of Electronics, vol. 23, no. 3, pp. 521-526, 2014,

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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).

Received Date: 2013-03-01
Rev Recd Date: 2013-05-01
Publish Date: 2014-07-05

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.
- Audio coding,
- Standard,
- Listening test,
- Modified discrete cosine transform (MDCT),
- Huffman coding

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References(19)

References

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