【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。最后得出此修改方案是可行的更多还原

【Abstract】 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.更多还原