摘要
设计一种基于TMS320C64xx DSP阵列实现多路语音编解码的软件平台,以满足不改变软件框架即可实现各种语音编码算法的应用需求。在此软件平台中,采用现代语音编码算法"逐帧处理"的思想设计,优化DSP的HPI接口、McBsp接口的数据处理流程。通过EDMA控制器控制外部数据的接收和发送,不占用DSP的内核开销。该平台具有极高的编码效率和良好的扩展性。
This article describes a TMS320C64xx based multi- channel speech coding software platform design. The platform meets the application requirement that any kind of speech coding algorithm could he performed without changing software structure. Based on progressive frame processing design concept, data processing flow on both HPI and McBsp interfaces are optimized. EDMA controller is used to control external data transmitting and receiving. This approach does not require DSP kernel resources. The platform shows high coding efficiency and good extensibility.
出处
《现代电子技术》
2008年第22期62-66,共5页
Modern Electronics Technique
