A G.729A Speech Codec Based on CK Embedded CPU
Qi Ma · Dianzi qijian · 2010
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.