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    METHOD AND APPARATUS FOR IMPLEMENTING FIXED CODEBOOKS OF SPEECH CODECS AS COMMON MODULE
    1.
    发明申请
    METHOD AND APPARATUS FOR IMPLEMENTING FIXED CODEBOOKS OF SPEECH CODECS AS COMMON MODULE 有权
    用于实现语音编码的固定代码作为通用模块的方法和装置

    公开(公告)号：US20090037169A1

    公开(公告)日：2009-02-05

    申请号：US11930750

    申请日：2007-10-31

    申请人： Kang-eun LEE ,  Do-hyung Kim ,  Chang-yong Son

    发明人： Kang-eun LEE ,  Do-hyung Kim ,  Chang-yong Son

    IPC分类号： G10L19/12

    CPC分类号： G10L19/16 ,  G10L19/12

    摘要： A method and apparatus for implementing fixed codebooks as a common module are provided. In the method of implementing fixed codebooks of a plurality of speech codecs as a common module, it is possible to include only a part excluding fixed codebooks in a communication terminal or communication system, support various speech codecs without using a chip with high price and high performance, and reduce a memory space that is occupied by the speech codecs by generating a track of a fixed codebook corresponding to a speech codec based on information on the speech codec among the plurality of speech codecs and selecting a codebook vector corresponding to a target signal among codebook vectors constructed with combinations of pulses represented by the generated track. In addition, it is possible to reduce processing complexity as compared with a case of embodying the common fixed codebook module in software by embodying the common fixed codebook module in hardware. In addition, it is possible to improve the entire voice processing performance by applying the latest fixed codebook searching algorithm only to the common fixed codebook, thereby easily applying the latest fixed codebook searching algorithm to the entire voice codec.

    摘要翻译： 提供了一种用于实现固定码本作为公共模块的方法和装置。 在将多个语音编解码器的固定码本实现为公共模块的方法中，可以在通信终端或通信系统中仅包括不包括固定码本的部分，而不使用高价格高的芯片支持各种语音编解码器 通过基于多个语音编解码器中的语音编解码器的信息生成与语音编解码器对应的固定码本的轨道，并且选择与目标信号相对应的码本矢量，来降低语音编解码器所占用的存储器空间 在由所生成的轨道表示的脉冲的组合构成的码本矢量中。 此外，与通过在硬件中实施公共固定码本模块的软件中体现公共固定码本模块的情况相比，可以降低处理复杂度。 此外，通过将最新的固定码本搜索算法应用于公共固定码本，可以提高整个语音处理性能，从而容易地将最新的固定码本搜索算法应用于整个语音编解码器。