The Study of An 8kbit/s Low-Delay CELP Speech Coder

Gao Wei

doi:10.13756/j.gtxyj.1993.01.006

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The Study of An 8kbit/s Low-Delay CELP Speech Coder

- The Study of An 8kbit/s Low-Delay CELP Speech Coder
- Study on Optical communication Issue 1, Pages: 27-37(1993)
- 作者机构：
  
  武汉邮电科学研究院 89级数字通信专业硕士研究生。现在武汉邮电科学研究院系统部工作
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.1993.01.006
  CLC：
- Published：1993，
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[1]高蔚.8kbit/s低时延CELP语音编码的研究[J].光通信研究,1993(01):27-37.

Gao Wei. The Study of An 8kbit/s Low-Delay CELP Speech Coder. [J]. (1):27-37(1993)
[1]高蔚.8kbit/s低时延CELP语音编码的研究[J].光通信研究,1993(01):27-37. DOI： 10.13756/j.gtxyj.1993.01.006.

Gao Wei. The Study of An 8kbit/s Low-Delay CELP Speech Coder. [J]. (1):27-37(1993) DOI： 10.13756/j.gtxyj.1993.01.006.

摘要

低时延码激励线性预测（LD-CELP）语音编码能够在较低速率把高质量与低时延结合起来。它可以用建立在全搜索算法基础之上的自相关搜索算法来降低计算量

用抗误码码本来提高抗误码能力。此外

对8kbit/s LD-CELP系统进行了模拟。

Abstract

The Low-Delay Code-Exited Linear Predictive （LD-CELP） Speech Coder can combine high quality with low delay at quite low bit rates. Its computational complexity can be reduced by the autocorrelation search procedure which is on the basis of the full search procedure. Its robust ability can be increased by the robust codebook. In addition

an 8kbit/s LD-CELP system has been simulated.

关键词

编码后向自适应搜索码矢

Keywords

codingbackward adaptivesearchcodevector

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