QNX下实现VoIP语音的应用研究  

Application Research of VoIP Voice Realization Under QNX

作　　者：赵付轩[1] 杨斌[1] 

机构地区：[1]西南交通大学信息科学与技术学院,成都610031

出　　处：《单片机与嵌入式系统应用》2012年第7期59-62,共4页Microcontrollers & Embedded Systems

摘　　要：针对现有的VoIP语音通信系统实时性较差和语音质量不高的问题,利用嵌入式系统灵活、可裁剪和QNX操作系统实时性较强的优点,在QNX操作系统平台上使用QNX及TI公司提供的开源软件和工具,以OMAP3530异构双核处理器为核心,通过SIP服务器以VoIP为语音架构实现局域网环境中高质量的实时语音通话系统。Aiming at poor real-time performance and low voice quality in existing VoIP voice communication system,making use of flexi- bility and scalability of embedded system and good real-time performance of QNX operating system, a high-quality real-time voice call system in LAN environment is realized based on VoIP through SIP server. The system uses open source softwares and tools offered by QNX and TI in QNX operating system platform,and takes OMAP3530 heterogeneous dual-core processor as the core.

关 键 词：QNX VOIP 语音编解码 OMAP3530 

分 类 号：TN916.2[电子电信—通信与信息系统]