基于DM6446的嵌入式语音传输平台设计

The Design of Embedded Speech transformation system on DM6446

基于DM6446双核构架的高速处理器,实现RTP协议及G.723协议下的语音压缩传输功能。为了灵活高效的完成上述功能,平台充分利用DM6446的双核构架:ARM子系统的Linux操作系统完成对语音数据的RTP协议封装、传输控制等;DSP子系统完成语音数据的压缩。

Based on DM6446 pair pit frame of the high speed processor, the speech compress deliver function is realized by the RTP agreement and G.723 agreement. For vivid and efficient completion of the above functions, the platform is full used of DM6446 double pit frame： sending the speech data pack and control information etc. by the RTP agreement have been completed by the Linux operate system of the ARM sub-system; the compress of speech data have been completed by the DSP subsystem.