摘要
综合考虑压缩速率、传输距离和音质还原等因素,利用合适的语音压缩编码技术G.729A,设计了基于CAN总线的广播系统。该系统能实现话音和高品质音频信号(MP3文件、WAV文件)在CAN总线网络中的实时传输,方便扩展系统的各项功能,设计成本低,实际安装维护方便,在煤矿井下得到了很好的应用。
A speech broadcast system is designed based on CAN bus by using voice compression coding technology G. 729A. The system realizes the real-time transmission of voice signal and high quality sound signal （MP3, WAV） in CAN bus network. It has easy function extension,low design cost and convenient installation and service. The system is widely used in the coal mine.
出处
《单片机与嵌入式系统应用》
2012年第7期52-55,共4页
Microcontrollers & Embedded Systems
