作　　者： ; (许晶晶）;

机构地区： 广东省数字音频重点实验室广东广州510640

出　　处： 《计算机应用与软件》 2010年第3期135-138,共4页

摘　　要： 研究了DRA(Digital rise audio)多声道数字音频编码算法,详细分析了DRA算法与其他音频编解码算法相比的特色之处,并在此基础上给出了DRA数字音频编码器的软件结构和设计方案,最后讨论了DRA编码器的组网应用。实践结果表明:该编码器性能优越,可以满足大多数固定和移动专业音频收发设备的应用需求。 In this paper, DRA multi-channel digital audio encoding algorithm is studied. Firstly, the characteristic features of DRA algorithm are elaborately analyzed in comparison with other audio encoding techniques. Based on this, the software structure and design scheme of DRA digital audio encoder are indicated. Finally, the networking applications of DRA encoder are discussed. Practising results show that this encoder has good performance and can meet most of the requirements in applications of fixed or mobile professional audio transceiver equipments.

关 键 词： 多声道数字音频编解码 可变分辨率滤波 码书选择

领　　域： [电子电信] [电子电信]