摘要
作者在分析GSMRPE-LTP编码方案的基础之上,提出了一种对编码方案中长时预测部分进行改进的方法,即快速音调搜索法。还从算法复杂度和信噪比两方面对修改前后的算法性能进行了比较。
Based on the analysis of various GSM RPE LTP end encoding schemes, the author proposes a new method for improving the long term detection section in GSM RPE LTP encoders, i.e. the method of speedy tone searching. A comparison has also been made between the algorithm functions prior to and following the improved method in the way of algorithm complexity and signal to noise ratio.
出处
《重庆邮电学院学报(自然科学版)》
1997年第1期23-26,69,共5页
Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition)
关键词
编码器
快速音调搜索法
算法复杂度
信噪比
encoders
the method of speedy tone searching
algorithm complexity
signal to noise ratio