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A NEW DIGITAL CODE CONVERSION ALGORITHM BETWEEN CVSD AND PCM AND ITS IMPLEMENTATION WITH DSP CHIP

Niu LingYang JunTang KunFeng Chongxi

Dept.of Electronic Engineering,State Key Lab on Microwave & Digital Communications,Tsinghua University

摘要:<正>A new digital code conversion algorithm between 16kbps CVSD and 64kbps A-law PCM is proposed in this paper,which eliminates cumulative distortion regardless of the number of the tandem transcodings in the steady state mode.Method of realizing the algorithm in real-time with DSP TMS320C25 and its application to source code conversion between primary rate PCM and CVSD are also described.The proposed code conversion technique provides a new method of source transcoding in the telephone network linking between special network and public network.
会议名称:

International Conference on Communication Technology(ICCT’94)

会议时间:

1994-06-08

会议地点:

中国上海

  • 专辑:

    信息科技

  • 专题:

    电信技术

  • 分类号:

    TN912.3

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