Abstract
DRA (Dynamic resolution adaptation) audio coding standard was shown to deploy transient-localized 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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CITATION STYLE
Ma, W., Jing, X. U., Ma, Y., & You, Y. (2014). DRA audio coding standard. Chinese Journal of Electronics, 23(3), 521–526. https://doi.org/10.1007/978-1-4419-1754-6_15
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