基于TMS320F2812的多通道实时语音编解码  

An Implementation of Multichannel Real Time Speech Codec Based on TMS320F2812

作　　者：戚莹[1] 陈芳炯[1] 韦岗[1] 

机构地区：[1]华南理工大学电信学院,广东广州510641

出　　处：《电声技术》2004年第11期33-36,共4页Audio Engineering

基　　金：国家自然科学基金(60072048);广东省自然科学基金(31390).

摘　　要：介绍了自适应多码率语音编解码算法及其基于TMS320F2812定点DSP芯片的实现方案。利用TMS320F2812芯片集成的多路ADC和PWM,对方案进行了多通道的扩展。分析了在DSP芯片上实现实时语音编解码及多通道扩展的关键技术。最后分析了此多通道实时语音编解码方案所需的存储空间和计算复杂度。An Implementation of the adaptive multi-rate speech codec based on the TMS320F2812 fixed-point DSP chip is presented. By exploiting the multichannel ADCs and PWMs of the TMS320F2812, the codec is extended to a multichannel real-time speech codec. The key technologies of the implementation of real-time speech codec are discussed. The computation complexity and the required store memory are also presented.

关 键 词：自适应多码率 多通道实时语音编解码 数字信号处理器 

分 类 号：TN912.3[电子电信—通信与信息系统]