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| DRA音频解码算法及其DSP实现 | |
| 引用本文： | 马文华,许晶晶,沈映娜.DRA音频解码算法及其DSP实现[J].电视技术,2011,35(16):33-36. |
| 作者姓名： | 马文华 许晶晶 沈映娜 |
| 作者单位： | 1. 广东外语外贸大学信息科学与技术学院计算机系,广东广州,510630 2. 广东省数字音频重点实验室,广东广州,510640 3. 广东省计算中心,广东广州,510033 |
| 基金项目： | 广东省科技厅2005粤港关键领域重点突破项目(2005A10208005) |
| 摘 要： | 在研究DRA多声道数字音频解码算法的基础上,设计了基于飞思卡尔公司DSPB56367的DRA多声道数字音频解码器,给出了软硬件设计方案并讨论了其关键技术。音频主观听音测试结果表明:所设计的解码器在128 kbit/s的立体声音质总体优于4.7分,在384 kbit/s的5.1环绕声音质总体优于4.5分,达到了实际应用的需求。 |
| 关 键 词： | DRA 多声道数字音频编解码 DSPB56367 乒乓缓冲 |
DRA Decoding Methods and DSP Realization |
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| MA Wenhua,XU Jingjing,SHEN Yingna.DRA Decoding Methods and DSP Realization[J].Tv Engineering,2011,35(16):33-36. | |
| Authors: | MA Wenhua XU Jingjing SHEN Yingna |
| Affiliation: | MA Wenhua1,XU Jingjing2,SHEN Yingna3 (1.Dept.of Computer,School of Informatics,Guangdong University of Foreign Studies,Guangzhou 510630,China,2.Guangdong Key Laboratory of Digital Audio,Guangzhou 510640,3.Guangdong Computing Center,Guangzhou 510033,China) |
| Abstract: | The DRA multi-channel digital audio methods and discusses the design of DRA decoder on Freescale DSPB56367 are introduced.The software and hardware design and the related key technologies are also indicated in this paper.The audio subjective test results show that the decoder has characters of well performance.It gains more than 4.7 scores under 128 kbit/s for the stereo sound and gains 4.5 scores under 384 kbit/s for the 5.1 surround sound. |
| Keywords: | DRA multi-channel digital audio coding DSPB56367 ping-pong buffer |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |