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ITU-TG.723.1是国际电信联盟制定的适用于多媒体通信的双速率语音编码标准。本文主要介绍了该标准的算法原理,并讨论了两种速率下的激励矢量搜索技术。该标准及其附录A的功能可在TMS320C5402上实现。
ITU-TG.723.1 is a two-rate speech coding standard developed by the International Telecommunication Union for multimedia communications. This paper introduces the principle of the standard algorithm, and discusses the two kinds of speed excitation vector search technology. The standard and its appendix A functions can be achieved on the TMS320C5402.