| 一种实现语音信号同步的方法 |
| |
| 引用本文： | 刘广建,张义军.一种实现语音信号同步的方法[J].现代电子技术,2007,30(3):49-50,53. |
| |
| 作者姓名： | 刘广建 张义军 |
| |
| 作者单位： | 1. 解放军63888部队,河南,济源,454650
2. 解放军63880部队,河南,洛阳,471003 |
| |
| 摘 要： | 在对语音无线传输质量进行客观评估时，一般采用分析谱参数距离的方法，这种方法需要收发语音样本之间的精确同步。介绍了一种采用特定格式的同步头，对采样的语音数据进行软件解调，用滑动窗逐点判定载频谱值实现语音文件的精确位同步的方法，并用巴克码相关法实现同步头的剔除。该方法用Matlab验证，效果较好。
|
| 关 键 词： | 语音同步 FSK调制 巴克码 FFT |
| 文章编号： | 1004-373X（2007）03-049-02 |
| 收稿时间： | 2006-07-21 |
| 修稿时间： | 2006-07-21 |
A Method of Synchronizing of Speech Signal |
| |
| LIU Guangjian,ZHANG Yijun.A Method of Synchronizing of Speech Signal[J].Modern Electronic Technique,2007,30(3):49-50,53. |
| |
| Authors: | LIU Guangjian ZHANG Yijun |
| |
| Affiliation: | 1. Unit 63888 of PLA,Jiyuan,454650,China;2, Unit 63880 of PLA,Luoyang,471003,China |
| |
| Abstract: | While evaluating the quality to the speech on radio,the method of the general adoption analysis spectrum parameter distance,this kind of method needs the precision synchronous between the received speech sample and original.This text introduces a kind of synchronous head that adopts the particular format,carrying on the software demodulation to the speech data of the sample,using glide window to judge carrier frequency value gradually so as to carry out the accurate synchronization of the speech document,and counteract the synchronous head the speech document by using related method.That method uses the Matlab realization,the result is better. |
| |
| Keywords: | FFT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
