一种清浊音判决的参考标准及一种新算法研究  

A Kind of Reference Standard for UV Decision and a New Algorithm

作　　者：李振起[1] 姜占才[1] 李大筠[1] 

机构地区：[1]青海师范大学物理系,西宁810008

出　　处：《电脑开发与应用》2010年第12期9-12,共4页Computer Development & Applications

摘　　要：目前的清浊音判决方法比较多,但没有一种方法是十分完美的,也没有一种完善的清浊音判决方法评价标准,为了检验一种新的算法对清浊音判决的有效性,提出了一种基于短时平均幅度和短时过零率相结合的清浊音判决参考标准,同时提出了一种基于残差信号短时自相关法的清浊音判决方法,并用此参考标准检验对该算法进行评价,通过matlab程序对算法进行仿真实验,实验结果表明这个参考标准可以很好地检验一种算法的有效性。There are many methods of the current method of UV decision,but no one is perfect and no one method can be well used as an evaluation criterion for UV decision.In order to test a new algorithm on the effectiveness of UV decision,I made a reference standard basis on the short-time average magenitude and the short-time average zero-crossing rate and a method of UV decision basis on the autocorrelation of the prediction residual.I test the new algorithm using the reference standard and get a good result though the matlab program.

关 键 词：清浊音 短时平均幅度 短时过零率 残差信号 自相关 

分 类 号：TP391.42[自动化与计算机技术—计算机应用技术]