一种基于CK嵌入式CPU的G.729A语音编解码器

A G.729A Speech Codec Based on CK Embedded CPU

参考传统的语音压缩编码器的实现方法,提出一种基于CK嵌入式CPU的G.729A语音编解码器。介绍了G.729A语音算法的基本原理,并详细讨论了G.729A算法在国产嵌入式CPUCK510E上实时实现的算法和代码优化方法,实验结果证明优化后算法性能得到了很大地提高,平均编解码一帧语音数据时间小于10ms,满足实际应用的要求。这些优化的思想也适用于G.729A算法在其他类似CPU平台上的实现。

Reference to the traditional method of speech compression codec achieved,A G.729A voice codec based on CK embedded CPU is proposed.The principle of G.729A voice codec algorithm is introduced,and the algorithm and code optimization methods for the real time implementation on an domestic embedded CPU CK510E is discussed.The result of experiments demonstrates that the performance of the optimized codec algorithm has been greatly improved,the time of encoding and decoding a frame of voice data less than 10 ms in average meets the requirement of practical application.These optimizing methods can also apply to G.729A algorithm for implementation on other similar CPU Platforms.