一种基于DAB的实时音频系统设计方案  

A Real-time Audio System Design Based on DAB

作　　者：王国裕[1] 曹瑞[1] 陆明莹[1] 

机构地区：[1]重庆邮电大学微电子工程重点实验室,重庆400065

出　　处：《电子质量》2012年第3期30-33,共4页Electronics Quality

摘　　要：通过对利用C++语言实现的实时音频采集编码系统进行介绍,该文提出了如何实现音频的实时采集和MP2音频编码。根据欧洲电信标准协会(ETSI)提出的ETS300799标准,提出了实时合成DAB传输帧的编码方案。实际测试结果表明,该系统能够完成音频数据的实时采集与发射工作,配套发射设备能组建一个实时性良好的实时音频采集编码系统。Through the introduction of real-time audio collection and encoding system designed by C＋＋ language,the paper applies how to implement real-time audio collection and MPEG-2 audio encoding.An real-time synthesis of DAB transmission frame encoding scheme is then proposed in accordance to the relevant provisions of the Standard ETSI EN 300 401.The results of testing indicate that the software is not only able to complete Real-time Audio Collection and transmission work,but also able to construct a good performance real-time audio collection-encoding system.

关 键 词：数字音频广播(DAB) 实时音频 C++ MP2 DAB传输帧 

分 类 号：TN934.3[电子电信—信号与信息处理]