基于FPGA数字音频嵌入的IP核设计  

Design of digital audio multiplexer intellectual property based on FPGA

作　　者：陈革辉[1] 李微 

机构地区：[1]中南大学信息科学与工程学院,长沙410083 [2]湖南双菱电子有限公司,长沙410007

出　　处：《信息技术》2008年第8期1-3,共3页Information Technology

基　　金：国家自然科学基金资助项目(50275150)

摘　　要：针对视频与音频播放不同步的问题,提出了一种基于FPGA的数字音频的嵌入的IP核设计方案,并给出了VHDL代码实现及时序仿真波形。实践证明基于FPGA的数字音频的嵌入的IP核设计不仅较好解决了视、音频延时问题,而且系统灵活可靠,代码可以重复利用,大大降低了重复购买专用芯片的应用成本。This paper introduces the application background and the digital audio embed into SDI stream, which is widely used to broadcast industry with high quality digital audio. It mainly presents a design method of digital audio multiplexer based on bTGA which is implemented by Hardware Description Language （HDL）. It is shown through the experimental results on both benchmarks circuits and on a realistic circuit that the improved method is more effective than the original method and reduced the expense for implementation.

关 键 词：数字音频嵌入 数字音频 现场可编程逻辑阵列 IP核 

分 类 号：TN941.2[电子电信—信号与信息处理]