摘要
本文表述了一个4.2Kb/s码激励线性预测语音编码方案在单个DSP上的实时实现;提出了一个减少自适应码本搜索复杂性的算法;讨论了A参数转变为LSP参数的求解方法;描述了该编码方案在具有一片TMS320C30的商用开发系统上的实时实现过程。
This paper presents a real-time implementation of 4.2Kb/s CELP speech coding on single DSP. An algorithm reducing search complexity for adaptive codebook is suggested, the solving method, which changes a parameter into LSP parameter, is discussed. The real-tune implementation procedure of this coding on a commercial development board with a single TMS320C30 is discribed.
关键词
语音编码
线性预测
矢量量化
Speech coding, Linear prediction, Vector quantization
