摘要
设计提出了一种多参数的清/浊音判决法。该方法是在传统两参数(短时能量和过零率)算法基础上增加了自相关函数和短时平均幅度作为判决参数,并通过对短时能量、平均幅度、短时过零率曲线等参数的分析和计算,来达到减少清/浊音信号的误判率的目的。经实验证明,算法切实可行,且误判概率小。
This design presents a method of voicing decision based on multiple parameters. Based on the traditional two-para meters （short-term energy and zero-crossing rate） algorithm, it involves self-relation function and short-term average range as decision parameters. By anaryzing and calculating the short-time energy, the average rate, the short-time zero-crossing rate curve and other related parameters,it can achieve the goal of reducing the rate of unvoiced/voiced misjudyment. Simulation results show that this method is ideal for real world implementation and the rate of misjudgment is low.
出处
《河北工业科技》
CAS
2009年第6期471-474,共4页
Hebei Journal of Industrial Science and Technology
关键词
清/浊音
过零率
平均幅度
短时能量
自相关
unvoiced/voiced
zero-crossing rate
average range
short-time energy
self-relation
