嵌入式音频系统的设计与实现  

Research and implementation of embedded audio system

作　　者：胡贯荣[1] 谢争捷[1] 涂刚[1] 

机构地区：[1]华中科技大学计算机科学与技术学院,湖北武汉430074

出　　处：《计算机工程与设计》2006年第23期4566-4568,共3页Computer Engineering and Design

摘　　要：音频系统在嵌入式多媒体系统中占有很重要的地位。主要是利用双核心的Blackfin561处理器的特点,设计了一种适合于此处理器的音频系统硬件解决方案。同时结合对嵌入式音频系统主要问题的分析,得到了一种针对此硬件架构的软件整体解决方案。在软件方面通过设置合理的缓冲区以及采取静音检测、同步等措施,实现了该应用在嵌入式uCLinux系统下的驱动程序,为嵌入式uCLinux系统下的芯片驱动开发提供了很好的借鉴。Audio system is a very important part of the embedded multimedia system. Based on the dual-core Blackfin561 processor＇s characteristic, a very suitable hardware solution for the audio system is received. The main problem of the embedded audio system is analyzed, a software solution for the hardware structure is received. Some measure and policies, such as quiet test and synchronization, are used in software solution, and a driver for the application in embedded μCLinux is implemented, a good reference to chip driver development in embedded uCLinux is presented.

关 键 词：嵌入式音频系统 音频编码 音频解码 双核心 缓冲区 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论] TP368.2[自动化与计算机技术—计算机科学与技术]