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。
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.
出处
《电视技术》
北大核心
2011年第16期33-36,共4页
Video Engineering
基金
广东省科技厅2005粤港关键领域重点突破项目(2005A10208005)
