低速率语音编解码声码器的实现  

Implementation of Low Speed Speech CODEC Vocoder

作　　者：石广源[1] 王福君[1] 

机构地区：[1]辽宁大学物理系,辽宁沈阳110036

出　　处：《辽宁大学学报（自然科学版）》2006年第3期224-227,共4页Journal of Liaoning University：Natural Sciences Edition

基　　金：沈阳市科委科研项目(1032029-2-06)

摘　　要：基于编码速率600bps的SELP语音算法,提出一种新的语音编解码芯片.电路设计时满足算法复杂度高、运算量大的需求,从而使声码器在极低的速率下更高效地工作,获得更好的语音重建质量.同时,声码器在设计时采用了可重构的思想,对于其他定点语音算法,只需要将算法程序注入到程序存储区就能实现多种算法在同一款芯片的重构.Based on the SELP vocoder algorithm which coding speed is 600bps, this paper brings out a kind of new speech CODEC vocoder circuit design to meet the requirement of algorithm which is complicated and large, and makes vocoder work under low speed, gets goool speech quality. Simultaneously, the reconfigurable thinking is adopted in this design. For other speech algorithm, manifold algorithm reconfigure on the same chip can be realized only by save the algorithm program to memory district.

关 键 词：语音编解码 声码器 可重构 

分 类 号：TN312[电子电信—物理电子学]