摘要
介绍了欧洲数字集群系统(TETRA)中声码器所使用的语音压缩编码算法———ACELP,着重阐述了代数码本结构及代数码本搜索中采用的聚焦搜索技术,并给出了ACELP算法仿真的结果。结果表明,该算法在较低码率上可获得较高的语音质量。
In this paper, the theory of ACELP algorithm, which is adopted in the Terrestrial Trunked Radio(TETRA) codec, is described. Algebraic codebook structure and a focused search technique are discussed in detail. Finally, the simulation of ACELP algorithm is given, and the results show higher quality for lower speech coding rate.
出处
《电声技术》
北大核心
2004年第2期46-49,共4页
Audio Engineering
